Concrete mix pumps class III
Study mode
Question of 286
1. What is the minimum allowable distance of the machine from the reach of the wedge of the collapse?
a) 0.4 [m],b) 0.8 [m],
c) 0.6 [m].
2. The safe distance of the machine from the excavation is:
a) depth of the excavation + 0.6 [m],b) 1.6 [m],
c) the reach of the wedge of the collapse + 0.6 [m].
3. Based on the presented table, determine the safe minimum distance of the machine from the bottom of the excavation with a depth of h = 2 [m] made in cohesive soils:
a) 2.6 [m],
b) 1.6 [m],
c) 1 [m].4. Based on the presented table, determine the safe minimum distance of the machine from the bottom of the excavation with a depth of h = 3 [m] made in fractured rocks:
a) 4.6 [m],b) 2.6 [m],
c) 3.6 [m].
5. Based on the presented table, determine the safe minimum distance of the machine from the bottom of the excavation with a depth of h = 2 [m] made in slightly cohesive soils:
a) 3.6 [m],
b) 3.1 [m],
c) 2.6 [m]. Concrete mix pumps Class III6. What is the minimum safe distance from the UPPER edge of the embankment that a machine can approach, given the following data: Soil category - I (dry sand), height of the embankment - h = 2 [m], horizontal distance between the upper and lower edges of the embankment - a = 2.5 [m]?
a) 3.6 [m],
b) 1.1 [m],
c) 0.6 [m].7. What is the minimum safe distance from the UPPER edge of the embankment that a machine can approach, given the following data: Soil category - II (slightly cohesive soils), height of the embankment - h = 4 [m], horizontal distance between the upper and lower edges of the embankment - a = 2.5 [m]?
a) 3.1 [m],
b) 5.6 [m],c) 0.6 [m].8. At what horizontal distance from the outermost conductors for power lines with a rated voltage not exceeding 1 [kV] is the operation of a machine or technical device permitted?
a) not less than 3 [m],
b) not less than 2 [m],c) not less than 5 [m].9. At what horizontal distance from the outermost conductors for power lines with a rated voltage above 1 [kV] but not exceeding 15 [kV] is the operation of a machine or technical device permitted?
a) not less than 10 [m],
b) not less than 5 [m],
c) not less than 15 [m].10. At what horizontal distance from the outermost conductors for power lines with a rated voltage above 15 [kV] but not exceeding 30 [kV] is the operation of a machine or technical device permitted?
a) not less than 5 [m],b) not less than 15 [m],
c) not less than 10 [m].
11. At what distance measured horizontally from the outermost conductors for power lines with a rated voltage above 30 [kV] but not exceeding 110 [kV] is the operation of a machine or technical device permissible?
a) not less than 15 [m],
b) not less than 10 [m],c) not less than 20 [m].12. At what distance measured horizontally from the outermost conductors for power lines with a rated voltage above 110 [kV] is the operation of a machine or technical device permissible?
a) not less than 30 [m],
b) not less than 15 [m],c) not less than 10 [m].13. Is it possible to organize workstations in the danger zone under overhead power lines?
a) yes, always,b) no, never,
c) yes, but only after meeting additional requirements.
14. What is the safe distance X for the operation of a machine or technical device near overhead power lines with a rated voltage of 400 [V]?
a) not less than 5 [m],b) not less than 30 [m],
c) not less than 3 [m].
15. What is the safe distance X for the operation of a machine or technical device near overhead power lines with a rated voltage above 1 [kV] but not exceeding 15 [kV]?
a) not less than 5 [m],
b) not less than 15 [m],c) not less than 10 [m].16. What is the safe distance X for operating a machine or technical device near overhead power lines with a rated voltage of 20 [kV]?
a) not less than 30 [m],
b) not less than 10 [m],
c) not less than 15 [m].17. What is the safe distance X for operating a machine or technical device near overhead power lines with a rated voltage of 20 [kV]?
a) not less than 5 [m],b) not less than 15 [m],
c) not less than 10 [m].
18. What is the safe distance X for operating a machine or technical device near overhead power lines with a rated voltage above 30 [kV] but not exceeding 110 [kV]?
a) not less than 50 [m],
b) not less than 15 [m],
c) not less than 30 [m].19. What is the safe distance X for operating a machine or technical device near overhead power lines with a rated voltage above 15 [kV] but not exceeding 30 [kV]?
a) not less than 30 [m],b) not less than 15 [m],
c) not less than 10 [m].
20. What is the safe distance X for operating a machine or technical device near overhead power lines with a rated voltage of 400 [kV]?
a) not less than 3 [m],b) not less than 40 [m],
c) not less than 30 [m].
21. Work in the danger zone (overhead high voltage power line):
a) may be carried out provided that the line is disconnected from the voltage, the work is performed in a zone limited by groundings and at least one grounding is visible from the work site,
b) may not be carried out under any circumstances under electrical lines in the danger zone,c) may be carried out provided that permission from the work manager has been granted.22. The operator must perform work at a distance X from the active overhead power line with a rated voltage of 400 [V]. He can start work if this distance is:
a) 2 [m],b) 1 [m],
c) 5 [m].
23. The operator must perform work at a distance X from the active overhead power line with a rated voltage of 20 [kV]. He can start work if this distance is:
a) 3 [m],
b) 15 [m],
c) 5 [m].24. The operator must perform work at a distance X from the active overhead power line with a rated voltage of 400 [kV]. He can start work if this distance is:
a) 5 [m],b) 15 [m],
c) 50 [m].
25. If the injured person has a detectable pulse but is not breathing, then:
a) the airways should be cleared and artificial respiration started,
b) he should not be touched,c) chest compressions should be performed.26. When providing first aid to victims of an accident, one should primarily:
a) provide assistance to those in life-threatening situations,
b) give injured persons medication,c) distance oneself from the accident scene to call a doctor.27. When providing first aid to victims of an accident, one should primarily:
a) provide assistance to those in life-threatening situations,
b) take care of one's own safety,
c) distance oneself from the accident scene to call a doctor.28. The obligation to provide first aid to accident victims rests with:
a) everyone, but for any mistakes, there is always a risk of criminal liability,b) only those who have medical training,
c) everyone, as one can always perform part of the rescue tasks.
29. The accident victim regained consciousness after a few minutes and wants to go home. In such a situation, one should:
a) give her something to drink and pain relief medication,
b) persuade her to stay and call for medical help,
c) allow her to go home, recommending a visit to the doctor.30. First aid in a situation where a foreign body has entered the eye of the injured person consists of:
a) rinsing with clean water directing the stream from the nose outward from the eye,
b) rinsing the eye with eye drops,c) rinsing with distilled water directing the stream into the eye.31. The injured person cut their leg on an unsecured sharp element. Providing first aid in this situation is:
a) using sterile gauze, wrapping the wound with a bandage,
b) using a tourniquet,c) sticking a plaster directly on the wound.32. Suspecting spinal injury in a person who has fallen from a height and is conscious, one should:
a) not move them and wait for medical services to arrive,
b) place them in the recovery position,c) sit them in a semi-reclining position.33. To move away from the place where the electric wire has been broken and the area is live, one should:
a) quickly step away from the source of electric shock by taking large steps and lifting feet high,b) run as fast as possible to a place that we assess as safe,
c) leave the place slowly, taking small steps, trying to maintain continuous contact of feet with the ground.
34. First aid in the case of a first-degree burn is:
a) pouring cold water on the burned area,
b) applying ointment to the burned area,c) applying greasy cream to the burned area.35. During work, a high-voltage power line was torn down, as a result of which a colleague was electrocuted. In this situation, the correct behavior is:
a) calling other colleagues for help with the injured person,b) approaching the injured person to provide first aid,
c) turning off the power source as quickly as possible.
36. We perform cardiopulmonary resuscitation until:
a) we have confirmed that the victim has started breathing and circulation has returned,
b) the fire department arrives and secures the area,c) 10 minutes have passed.37. Immediate action in the case of severe bleeding from an injured upper limb includes:
a) disinfecting the wound with salicylic alcohol,
b) applying a dressing, directly compressing the bleeding site, and elevating the limb,
c) lowering the limb below heart level.38. In the case of a nosebleed, one should:
a) lean the bleeding person's head forward and pinch the nostrils,
b) lay the injured person on their back,c) tilt the head back and place a cold compress on the neck.39. The first step in dealing with a carbon monoxide poisoning victim in a closed room is:
a) the quickest possible evacuation of the victim from that room,
b) conducting a preliminary examination,c) assessing ABC.40. First aid during seizures caused by an epileptic attack consists of:
a) protecting the victim's head from injuries,
b) placing a wooden object in the victim's mouth to prevent biting the tongue,c) seating the victim in a semi-sitting position and offering something to drink.41. In case of suspected spinal injury in the cervical region in a conscious person, one should:
a) not allow the injured person to move their head,
b) seat the injured person in a chair with a high back,c) place the injured person in a lateral position.42. The most important thing when a person is buried under earth, sand, or gravel is:
a) notifying the family,b) waiting for the arrival of the ambulance,
c) locating the injured person.
43. First aid for a person with a metal rod embedded in their lower leg involves calling for help and:
a) moving the rod to check if the artery has been damaged,
b) securing the rod to prevent movement,
c) removing the embedded rod.44. The indication for using an AED defibrillator is:
a) absence of detectable breathing and pulse in the injured person,
b) severe dizziness,c) severe chest pain.45. During the operation of a machine/technical device, the prohibited actions for which you are taking the exam are:
a) performing daily technical service (OTS),
b) making structural changes to the machine/technical device,
c) changing the working tool.46. During the operation of the machine/technical device for which you are taking the exam, the prohibited activities are:
a) cleaning the machine/technical device using gasoline or solvents whose vapors can create flammable/explosive gas mixtures with air,
b) refueling the machine/technical device from a canister,c) cleaning the machine/technical device using a product in accordance with the operating and maintenance instructions.47. The machine/technical device for which you are taking the exam can only be operated by:
a) any adult person with technical education and a driving license of the appropriate category,b) a person with written confirmation of completing the course in the form of a plastic card,
c) a person who has completed training and obtained a positive result in the test conducted by the commission appointed by the Łukasiewicz Research Network – Warsaw Institute of Technology.
48. The rights to operate machines/technical devices for which you are taking the exam are issued by:
a) The County Office appropriate for the residence address of the person applying for the rights,
b) Łukasiewicz Research Network - Warsaw Institute of Technology (LRN - WIT),
c) The Office of Technical Inspection (UTN).49. The rights to operate machines/technical devices for which you are taking the exam:
a) are valid for 5 years from the date of their issuance,
b) are valid indefinitely,
c) are valid for 10 years from the date of their issuance.50. A person holding the rights to operate: "Concrete Mix Pump class III" may operate based on them:
a) concrete mix pumps and machines for spreading concrete mixtures,
b) only concrete mix pumps,
c) concrete mix pumps and concrete feeders.51. The employee operating the machine/technical device for which you are taking the exam may start work provided that:
a) has the qualifications to operate this type of machine/technical device,
b) the machine/technical device has a valid UDT inspection,c) has a valid category D driving license.52. In the event of a threat to life, health, property, or the environment caused by a malfunction of the machine/technical device, the operator:
a) continues working but informs the supervisor about the situation at the end of the shift,b) continues working but makes the appropriate entry in the maintenance book at the end of the shift,
c) immediately stops work and informs the supervisor of this fact.
53. Lifting and transporting people using working equipment:
a) is possible, but only outside the public road area,
b) is always prohibited,
c) requires the consent of the construction manager.54. The employee operating the machine/technical device for which you are taking the exam has the right to refuse to start work when:
a) there is an overhead power line with a rated voltage of 110 [kV] located 35 meters away,
b) this work requires special psychophysical fitness, and his psychophysical condition does not ensure its safe execution and poses a threat to others,
c) has the required personal protective equipment.55. The employee operating the machine/technical device for which you are taking the exam is obliged to stop work when:
a) the work he is performing poses an immediate threat to the health or life of others,
b) there is an overhead power line located 35 meters away,c) has the required personal protective equipment.56. The employee operating the machine/technical device for which you are taking the exam is required to:
a) comply with the instructions for operation and use of the machine/technical device,
b) always have a category B driving license,c) independently perform all current repairs of the machine/technical device.57. The person directly responsible for the safe operation of the machine for which you are taking the exam is:
a) the owner of the machine,
b) the operator of the machine,
c) the construction manager.58. The operator's book and qualifications for the machine/technical device for which you are taking the exam are issued by:
a) the Office of Technical Inspection (UDT),b) the Transport Technical Inspection (TDT),
c) the Research Network Łukasiewicz - Warsaw Institute of Technology.
59. The obligation to use personal protective equipment:
a) arises from the instructions for operation and use as well as health and safety regulations,
b) arises only from internal regulations,c) does not apply on hot days.60. An employee who witnesses an accident at work:
a) is obliged to assist the victims, notify the supervisor, and if necessary secure the accident site,
b) is obliged to assist the victims and then immediately leave the accident site,c) it is sufficient to notify the supervisor.61. The danger zone is defined as:
a) a place where employees must only wear safety helmets,
b) a place where there are threats to the health and life of people,
c) a place where work requiring specialized equipment takes place, and the presence of people is only allowed at night.62. The danger zone on a construction site:
a) is designated and/or fenced off and marked in a way that prevents access to unauthorized persons,
b) is always designated by a surveyor,c) is designated after the construction work has started.63. The area that the operator should check and secure before starting work with a machine/technical device (because there are threats to the health and life of people) is called:
a) the danger zone,
b) the area of increased risk,c) the dead zone.
64. The hand signal shown in the drawing means:
a) "raise up",
b) "lower down",c) "turn the machine".
65. The hand signal shown in the drawing means:
a) "turn the machine",
b) "lower down",
c) "raise up".
66. The hand signal shown in the picture means:
a) "raise up",
b) "move in the indicated direction",
c) "turn the machine".
67. The hand signal shown in the picture means:
a) "move in the indicated direction",
b) "raise up",c) "turn the machine".
68. The hand signal shown in the picture means:
a) "stop",
b) "horizontal distance",
c) "end of operation".
69. The hand signal shown in the picture means:
a) "move backward",b) "fast movement",
c) "move forward".
70. The hand signal shown in the picture means:
a) "move backward",
b) "slow movement",c) "move forward".
71. The hand signal shown in the picture means:
a) "stop",
b) "vertical distance",
c) "end of operation".
72. The hand signal shown in the picture means:
a) "horizontal distance",b) "reverse movement",
c) "STOP. Emergency stop".
73. The hand signal shown in the picture means:
a) "STOP. Emergency stop",
b) "START. Beginning of guidance",
c) "reverse movement".
74. The hand signal shown in the picture means:
a) "reverse movement",
b) "STOP. Break - end of movement",
c) "STOP. Emergency stop".
75. The hand signal shown in the picture means:
a) "horizontal distance",
b) "END. Stop operation",
c) "lower down".76. During the charging of batteries, gas with very explosive properties is released. This gas is:
a) ethane,
b) hydrogen,
c) methane.77. Firefighting foam can be used to extinguish fires of group:
a) only C,
b) A and B,
c) C and D.78. Improper use of a snow extinguisher can result in:
a) frostbite caused by the extinguishing agent,
b) fainting,c) burns from the extinguisher components.79. Water, fire blanket, powder extinguisher, carbon dioxide, sand are extinguishing agents that we will use to extinguish:
a) solid bodies,
b) liquids,c) oils.80. We can call sorbents:
a) petroleum-derived substances,b) fire blankets,
c) materials made from natural or synthetic substances that absorb liquids.
81. Group A fires concern:
a) solid bodies, whose normal combustion occurs with the formation of glowing embers, e.g., wood, paper, etc.,
b) flammable gases,c) flammable liquids.82. Group B fires concern:
a) liquids and solid materials that melt, e.g., plastics, fuels, oils, etc.,
b) metals, e.g., magnesium, sodium, potassium, aluminum, titanium, etc.,c) flammable gases.83. Group C fires concern:
a) flammable liquids,
b) gases, e.g., methane, propane, acetylene, hydrogen,
c) solid bodies.
84. Seeing such a pictogram you are informed about:
a) a larger number of people in a given area,b) a danger zone,
c) a gathering place during evacuation.
85. While working, you noticed a sign marked 'Zone 0'. It informs about:
a) the zone of existing fire load in the building,b) the zone of existing fire hazard category,
c) the space in which an explosive atmosphere exists.
86. The presented pictogram informs about:
a) the main power switch,b) internal hydrant,
c) set of fire protection equipment.
87. Seeing such a pictogram you are informed about:
a) the assembly point during evacuation,
b) the emergency exit,
c) the location of first aid.
88. Seeing such a pictogram you are informed about:
a) the location of the fire extinguisher,
b) the prohibition of using the fire extinguisher,c) the high temperature affecting the fire extinguisher.89. You see a person whose clothing is on fire and who is fleeing in panic. Your reaction is:
a) you wave your arms or outer covering strongly next to him to extinguish the burning clothing,
b) you try to stop him, lay him on the ground, and start extinguishing,
c) you tell him to wait in an upright position for the arrival of rescue services.90. Electrical devices and installations can be extinguished using:
a) water,b) foam extinguishers,
c) powder or snow extinguishers.
91. Burning fuel can be extinguished using:
a) powder, foam or snow extinguishers,
b) low-octane ethylene,c) water.92. Burning clothing on a person can be extinguished using:
a) snow or powder extinguisher,
b) water mist extinguisher or fire blanket,
c) plastic material.93. What obligations does an employee have if they decide to refrain from work due to health and safety regulations?
a) They should organize work for others,
b) They must immediately inform their supervisor,
c) They have no obligations in this situation.94. How can an operator prevent hazards in the workplace?
a) By not reporting faults in machines,
b) By using personal protective equipment to minimize risk,
c) By ignoring health and safety rules.95. It is not permissible to position a workplace directly under active overhead power lines or at a horizontal distance from the outermost conductors of less than:
a) for lines: 1 [kV] - 1 [m], 15 [kV] - 3 [m], 30 [kV] - 5 [m], 110 [kV] - 10 [m],
b) for lines: 1 [kV] - 3 [m], 15 [kV] - 5 [m], 30 [kV] - 10 [m], 110 [kV] - 15 [m], 400 [kV] - 30 [m],
c) for all voltages - 1 [m] from the power line.96. How does the operator know what personal protective equipment is required for a given machine/technical device?
a) The choice of personal protective equipment depends on the opinion of colleagues at work,
b) Information about the necessary personal protective equipment is included in the operating and maintenance manual of the machine,
c) The operator must independently choose the appropriate protective measures.97. The operator should refuse to perform a task when:
a) the work is inconsistent with the intended use of the machine/technical device,
b) the work requires familiarization with the location of underground and above-ground utilities,c) the work is being performed at night.98. The operator can prevent hazards during the operation of the machine/technical device by:
a) following health and safety rules and adhering to the operating instructions,
b) inattention and routine,c) limiting the use of personal protective equipment.99. Which of the situations listed is unacceptable during the use of the machine/technical device?
a) Operating the machine without supervision,
b) Unauthorized persons being in the danger zone caused by the operation of the machine/technical device,
c) Reporting faults directly to the supervisor.100. An accident at work is considered to be:
a) a sudden event, unrelated to the work being performed, caused by an external factor, resulting in injury or death,
b) a sudden event, related to the work being performed, caused by an external factor, resulting in injury or death,
c) a prolonged event, related to the work being performed, caused by an internal factor, resulting in equipment damage.101. A fatal accident at work is considered to be an accident in which death occurred:
a) only at the time of the accident,
b) within a period not exceeding 6 months from the date of the accident,
c) after a period of more than 6 months from the date of the accident.102. When setting up a pump for concrete mix, the following factors should be taken into account:
a) the noise level in the environment and the working time of other machines,
b) weather conditions and the stability of the substrate,
c) only the stability of the pump arm, without analyzing the substrate and environmental conditions.103. Typical hazards that may occur in the funnel area near the concrete mix pump are:
a) being buried in soil, sand, gravel, etc.,b) electric shock despite maintaining safe distances from power lines,
c) being trapped between the concrete mixer and the funnel, contact with concrete splashes, risk of crushing or amputation by the pipe switch.
104. Health and safety regulations require:
a) conducting a warranty inspection of the working machine before the end of the year from its purchase,
b) securing the working machine during breaks in its operation against accidental activation by unauthorized persons,
c) scrapping the old working machine within the time specified in its operating and maintenance manual, while complying with the requirements for the disposal of hazardous materials.105. In the event of a person being electrocuted:
a) it is recommended to use any tools to disconnect the power, regardless of their actual purpose,
b) do not touch the injured person until the power source is disconnected,
c) immediate resuscitation should be started, regardless of whether the power source has been disconnected.106. Seeing a person whose clothes are on fire, the first thing to do is:
a) leave the victim standing to facilitate air access and extinguish the flames faster,b) use a fire extinguisher, preferably a snow one, to extinguish the burning clothing, and then try to quickly tear off the melted clothing,
c) cut off the air supply by rolling the victim or wrapping them in a fire blanket, wet clothing, or a wet blanket.
107. The wedge of soil collapse:
a) occurs when the slope of the embankment exceeds the angle of the natural slope of the soil,
b) is the area around the working machine extending 6 [m] beyond its farthest reach,c) occurs only when the soil is in a frozen state.108. The range of the wedge of soil collapse:
a) depends solely on the temperature of the soil,
b) depends on the depth of the excavation and the category of the soil,
c) depends on the speed of the machine's operation and the efficiency of the operator.109. The angle of the natural slope is:
a) the maximum slope at which the soil can remain without sliding - it depends, among other things, on the category of the soil,
b) the angle at which the soil will definitely slide on its own - it depends solely on the temperature of that soil,c) the angle at which it is safe to operate the machine - it depends on the parameters of the given machine.110. The wedge of soil collapse:
a) occurs when the slope of the embankment exceeds the angle of the natural slope of the soil - its range depends on the type of soil and the depth of the excavation or the height of the embankment,
b) is the space around the machine, dependent on the speed of the machine's operation and its mass,c) is the zone where the soil becomes unstable - its range depends solely on the depth of the excavation, the type of soil is not significant here.111. The angle of a natural slope is:
a) the inclination at which any embankment becomes unstable, regardless of the type of soil,
b) the maximum slope at which soil can remain without sliding - it depends on the type of soil, e.g. moisture, cohesiveness, and grain size,
c) the angle at which a machine can safely move on an embankment, regardless of the soil category.112. Cardiopulmonary resuscitation (CPR) is performed:
a) when the victim is not breathing and there is no detectable pulse. For a non-professional rescuer, the absence of breathing is a sufficient basis to start resuscitation,
b) only in the case of fainting and minor injuries, to improve blood circulation,c) when the victim is breathing but is unconscious and unresponsive.113. An employee has the right to refrain from performing work due to health and safety regulations, notifying their supervisor immediately when:
a) working conditions pose an immediate threat to health or life,
b) the work they are performing has not been reported to the construction supervision,c) working conditions do not pose a threat but are too difficult for them.114. Physical factors generating hazards in the workplace are:
a) lack of or inadequate training for employees,
b) spilled lubricants, oils, and fuels,
c) lack of appropriate medical examinations for the employee.115. Working with a machine/device is not allowed when:
a) the second operator has not reported an upcoming inspection,
b) it is malfunctioning,
c) its repair was carried out after dark.116. Working near overhead power lines:
a) is possible without meeting additional requirements provided that certain distances depending on the rated voltage of the line are maintained,
b) always requires double grounding of the line,c) always requires the power in the line to be turned off.117. The operator is obliged to refuse to work if:
a) the working machine is defective,
b) there is no construction manager or any other authorized person for supervision at the work site,c) they would have to work under power lines, and the voltage in them has been turned off and the line grounded.118. The danger zone from a machine/technical device is:
a) a place where the machine/technical device cannot be used,b) always the entire fenced construction site,
c) a place where there are hazards to health or life of people.
119. Accidents at work can result from the poor technical condition of the working machine, for example:
a) failure of the drive system,b) damage to the equipment,
c) injury to a limb, torso, or head.
120. Unacceptable behaviors are:
a) performing daily maintenance of the machine after dark,b) working after dark in a well-lit place, with full concentration of the operator,
c) operating a defective machine and working under the influence of alcohol.
121. When setting up the concrete mix pump, you should:
a) position the pump with the hopper side towards the excavation, just out of reach of the debris wedge, to facilitate loading concrete from the delivering vehicles,
b) check the ground and maintain an appropriate distance from excavations, other machines, and power lines,
c) position the pump as close to the excavation as possible to reduce the distance for transporting concrete.122. Hazards that may occur in the support extension zone of the concrete mix pump include:
a) risk of crushing limbs,
b) increased risk of noise,c) risk of contact with hot machine parts.123. The basic duties of an employee regarding occupational health and safety are:
a) adhering to health and safety regulations and principles, taking care of the condition of machines and tools, and maintaining order in the workplace, using personal protective equipment,
b) not being late for work, completing it on time, confirming presence at work in the manner accepted by the employer,c) enforcing labor code regulations regarding their rights, including payment for overtime worked.124. In the case of a person electrocuted, after disconnecting the power source, you should:
a) move the injured person to another location as quickly as possible,
b) check the condition of the injured person, and if necessary: call for help, clear the airways, perform resuscitation, and use an AED if available,
c) leave the injured person alone if they have regained consciousness, without further actions.125. After extinguishing flames on a person with burns and calling for help, you should:
a) cool the burned areas with cold water for 10-20 minutes, first removing any melted clothing,
b) cool the burned areas with cold water for 10-20 minutes, without removing any melted clothing,
c) use a snow extinguisher to cool the burn areas.126. If the operator notices faults that may prevent the proper operation of the machine, then:
a) ignore the faults if the machine is currently working properly,
b) is obliged to refuse to start the machine and report this fact to the supervisor,
c) should continue working and repair the machine after completing the task.127. The statement: "The operator's qualifications for the machine you are taking the exam for are sufficient to operate such a machine on public roads" is:
a) true,
b) false,
c) true, but only under normal air visibility conditions.
128. Seeing such a pictogram you are informed about:
a) the location where an external automatic defibrillator is available,
b) the location for performing AED,c) the location where a first aid kit is available.129. Properly performed cardiopulmonary resuscitation (CPR) consists of:
a) connecting the external automatic defibrillator (AED) and following its instructions; CPR is not performed without AED,
b) clearing the airways, then compressing the chest at a rate of 100-120 times per minute to a depth of 5–6 [cm] and performing 2 rescue breaths after every 30 compressions (breaths are not mandatory),
c) clearing the airways, then compressing the chest at a rate of 30-60 times per minute to a depth of 1–3 [cm] and performing 2 rescue breaths after every 15 compressions (breaths are mandatory).130. The abbreviation IBWR stands for:
a) Instruction for Non-Failure Execution of Works,
b) Instruction for Safe Execution of Works,
c) Instruction for Non-Failure Execution of Works.131. Expand the acronym IBWR:
a) Implementation of Failure-Free Work Execution,
b) Safe Work Execution Instruction,
c) Information on Safe Work Execution.132. The Safe Work Execution Instruction for Construction Works is:
a) a document containing information regarding safety on the construction site,
b) a document confirming qualifications for operating machines and technical devices in earthworks, construction, and road works,c) a road plan in construction works.133. BIOZ plan means:
a) Health and Safety Plan,
b) Safe Health Protection Instruction Plan,c) Safety and Resource Specification Plan.134. To be able to direct traffic during work in the road lane, it is required to:
a) have qualifications to operate all machines working on the section to which traffic direction applies,b) have qualifications to operate at least one of the machines and appropriate personal protective equipment,
c) have a valid certificate of completion of a traffic direction course and be visible from a sufficient distance.
135. The reach of the wedge of the excavation for a depth of h = 2 [m] for soils of category IV (cohesive) is:
a) 4 [m],b) 1.6 [m],
c) 1 [m].
136. The reach of the wedge of the collapse for an excavation with a depth of h = 3 [m] for soils of category IV (cohesive) is:
a) 1 [m],
b) 1.5 [m],
c) 1.6 [m].137. The reach of the wedge of the collapse for an excavation with a depth of h = 1 [m] for soils of category IV (cohesive) is:
a) 1 [m],
b) 0.5 [m],
c) 1.6 [m].138. The reach of the wedge of the collapse for an excavation with a depth of h = 1 [m] for soils of category III (fractured rocks) is:
a) 1.6 [m],b) 2 [m],
c) 1 [m].
139. The reach of the wedge of the collapse for an excavation with a depth of h = 2 [m] for soils of category III (fractured rocks) is:
a) 1.6 [m],
b) 2 [m],
c) 1 [m].140. The reach of the wedge of the collapse for an excavation with a depth of h = 3 [m] for soils of category III (fractured rocks) is:
a) 1 [m],
b) 3 [m],
c) 2 [m].141. The reach of the wedge of the block for an excavation with a depth of h = 4 [m] for soils of category III (fractured rocks) is:
a) 4 [m],
b) 2.6 [m],c) 3 [m].142. The safe distance that a machine must maintain for an excavation with a depth of h = 2 [m] for soils of category IV (cohesive) is:
a) 1 [m],b) 2.6 [m],
c) 1.6 [m].
143. The safe distance that a machine must maintain for an excavation with a depth of h = 3 [m] for soils of category IV (cohesive) is:
a) 6.6 [m],b) 3.6 [m],
c) 2.1 [m].
144. The safe distance that a machine must maintain for an excavation with a depth of h = 4 [m] for soils of category IV (cohesive) is:
a) 2.6 [m],
b) 2 [m],c) 4.6 [m].145. The safe distance that a machine must maintain for an excavation with a depth of h = 1 [m] for soils of category IV (cohesive) is:
a) 2 [m],b) 2.6 [m],
c) 1.1 [m].
146. The safe distance that a machine must maintain for a trench with a depth of h = 1 [m] for soils of category III (cracked rocks) is:
a) 2.6 [m],b) 2 [m],
c) 1.6 [m].
147. The safe distance that a machine must maintain for a trench with a depth of h = 2 [m] for soils of category III (cracked rocks) is:
a) 2 [m],b) 4.6 [m],
c) 2.6 [m].
148. The safe distance that a machine must maintain for a trench with a depth of h = 3 [m] for soils of category III (cracked rocks) is:
a) 2.1 [m],
b) 3.6 [m],
c) 3 [m].149. The safe distance that a machine must maintain for a trench with a depth of h = 4 [m] for soils of category III (cracked rocks) is:
a) 4.6 [m],
b) 4 [m],c) 2.6 [m].150. Traffic safety devices used during work conducted in the road strip may be colored:
a) white, red, yellow, and black,
b) red, yellow-red, blue,c) white, green, blue.151. Traffic safety devices used to secure and mark the work site in the road lane should be visible:
a) only at night,
b) during the day and at night,
c) only during the day.152. Entering and exiting the machine should be done:
a) facing the machine, maintaining three points of contact,
b) with back to the machine, using a three-step ladder,c) entering sideways, being careful of the devices in the cabin.153. The machine operator should know the category of the ground they are working on:
a) to understand the requirements for operating the machine's chassis,b) to be able to assess the depth of the excavation,
c) to calculate the safe distance for setting up the machine and the reach of the wedge of the collapse.
154. A factor affecting the 'pumpability' of the concrete mix is:
a) the temperature of the mix,b) the amount of atmospheric air in the mix,
c) the content of fine-grained components.
155. Blockages during the pumping of the concrete mix can be caused by:
a) using pipes with walls that are too thin,b) too many pump cylinders,
c) insufficient moistening of the piping.
156. The appropriate ratio of cement to water is important for the 'pumpability' of concrete because:
a) it provides the right consistency and flow of the mixture through the pipeline,
b) it increases the continuity of the mixture,c) it reduces the content of air bubbles.157. Concrete mixture is:
a) exclusively cement mixed with water,b) concrete that is already set and hardened,
c) completely and uniformly mixed components of concrete that are still in a state allowing for compaction.
158. The main difference between concrete mixture and concrete is that:
a) concrete mixture is exclusively fine aggregate with water, while concrete contains only cement and sand,b) concrete mixture has only water and cement, concrete also contains aggregates,
c) concrete mixture is still in a liquid state, while concrete is already set and hardened.
159. Mixers in the hopper of the concrete pumping system:
a) direct the concrete mixture towards the check valve,
b) keep the mixture in a loose state,c) regenerate the structure of the mixture during suction.160. Concrete loaded into the loading hopper is sucked in by a piston that:
a) rotates around its own axis,b) moves forward,
c) operates in reverse mode.
161. The presence of granite in the concrete mix affects the pumping process because:
a) it increases the flow of the mix, facilitating its pumping,b) it reduces the required force and pressure for pumping,
c) it hinders the smooth pumping of the mix.
162. The component of the concrete mix responsible for binding all materials into a uniform mass is:
a) water,
b) cement,
c) sand.163. The w/c ratio refers to:
a) the proportion of water to aggregate,b) the proportion of downtime to continuous working time,
c) the proportion of water to cement.
164. A cement paste is called:
a) a mixture of cement and water,
b) a mixture of cement and aggregates,c) a mixture of cement and chemical additives.165. We call gravel aggregate:
a) stones coated with tar,b) slate aggregate,
c) rock fragments that have moved in rivers.
166. Before starting work with a concrete pump, it is essential to check:
a) possible collisions with underground infrastructure,
b) possible collisions with power lines,
c) the qualifications of the persons delivering the concrete mix.167. Concrete mix is:
a) a mixture mainly composed of aggregates and binder, from which bituminous surfaces are made,
b) completely and uniformly mixed components of concrete that are still in a state allowing compaction by the chosen method,
c) completely and uniformly mixed components of concrete after the cement binding process is completed.168. Concrete is called:
a) a material obtained by mixing cement, aggregates, water, and any possible admixtures and additives, which has already acquired its properties as a result of cement hydration,
b) a mixture mainly composed of aggregates and binder, from which bituminous surfaces are made,c) a material obtained by mixing cement, aggregates, water, and any possible admixtures and additives, which is still in a state allowing compaction.169. Which of the listed elements are not part of the hydraulic system:
a) pump, distributor, actuator,b) hydraulic lock, hydraulic oil tank,
c) starter, alternator.
170. The hydraulic lock in a machine is:
a) a valve responsible for controlling the entire hydraulic system,
b) a valve protecting against uncontrolled movement of the element located in a given line,
c) the closure of the hydraulic oil inlet at its tank.171. The change of hydraulic oil pressure into mechanical movement is the responsibility of:
a) hydraulic distributor,b) hydraulic pump system,
c) hydraulic actuator and hydraulic motor.
172. Pressure in the hydraulic system is generated by:
a) hydraulic pump,
b) hydraulic motor,c) hydraulic actuator.173. Directing the flow of hydraulic oil to individual systems is carried out by:
a) hydraulic lock,b) relief valve,
c) hydraulic distributor.
174. The safety valve protects the hydraulic system from:
a) air entering the hydraulic system,b) overheating of the hydraulic oil,
c) excessive pressure increase.
175. The relief valve in the hydraulic system is responsible for:
a) limiting the maximum working pressure in a given circuit,
b) maintaining a constant position of the working tool,c) venting the system.176. If the pressure in the hydraulic system rises excessively, the excess oil will be directed to:
a) hydraulic oil filter,b) distributor,
c) hydraulic oil tank.
177. The basic parameters that characterize an electric accumulator are:
a) rated voltage [V], power [W], weight [kg],
b) rated voltage [V], capacity [Ah], starting current [A],
c) rated voltage [V], resistance [Ω], power [W].178. Lead-acid batteries can be charged:
a) only in an air-conditioned room,
b) in a specially designated place,
c) in any room.179. The pressure in the tires should be adjusted to:
a) values given in the operating and maintenance manual,
b) requirements of the landowner,c) preferences of the operator.180. Uneven tire pressure:
a) does not affect the operation of the machine,b) improves the driving properties of the machine,
c) reduces the stability of the machine.
181. The concrete mixture pumping system requires a durable pipeline:
a) because the mixture is dropped onto the pipeline from different heights,
b) because the mixture is pumped through the pipeline under high pressure,
c) to dissipate heat from the mixture during flow.182. The hydraulic distributor:
a) increases the torque in the side gearbox,b) converts mechanical energy into hydraulic energy,
c) directs the flow of hydraulic oil to the appropriate sections.
183. The hydraulic distributor is a device that:
a) distributes oil between the small and large circuits,
b) allows control of individual hydraulic sections of the machine,
c) distributes oil between the engine and the hydraulic system.184. The pumping of the concrete mixture is the responsibility of:
a) a pump unit with pumping actuators and a feed hopper,
b) the engine, hydraulic system, and distributor,c) the pipeline and boom joints.185. The feed hopper in the concrete pump:
a) keeps the control panel in the working position,b) is used to dump unused leftover concrete at the end of work,
c) stores and transfers the concrete mixture to the pump unit.
186. The movement of the boom horizontally is realized by:
a) electrically driven lever mechanism,
b) rotation mechanism driven by a hydraulic motor with a gearbox,
c) pneumatic actuators placed at each arm.187. The piston pump operates in a system:
a) unidirectional, with one actuator,b) rotary, with a piston working cyclically,
c) push-pull with two actuators working alternately.
188. The elements of the pressure pipeline are connected using clamps, which can be:
a) screwed or adjustable,
b) mounted without seals,c) welded or glued.189. The flow and direction of hydraulic fluid in the system are regulated by:
a) hydraulic valves,
b) hydraulic pumps,c) hydraulic motors.190. Elements of the system, such as actuators and hydraulic motors, convert hydraulic energy into:
a) electrical energy,
b) mechanical energy,
c) pressure in the tank.191. The mandatory equipment used for the operator to observe the area directly behind the machine is:
a) sound signal when reversing,b) rear camera,
c) external mirror.
192. In a parallel connection of two identical batteries, the voltage of such a system is:
a) equal to the voltage of a single battery,
b) the sum of the voltages of individual batteries,c) the product of the voltages of individual batteries.193. In a series connection of two identical batteries, the voltage of such a system is:
a) equal to the voltage of a single battery,
b) the sum of the voltages of individual batteries,
c) the product of the voltages of individual batteries.194. Fuses in the electrical installation of the machine protect it against the effects of:
a) low voltage,
b) short circuits and overloads,
c) high temperature.195. One of the elements of the electrical system protecting the engine from seizing is:
a) engine oil pressure sensor,
b) speed regulator,c) main fuse.196. Gel batteries that are part of the electrical system do not require:
a) topping up the electrolyte,
b) replacement in case of housing damage,c) charging with a rectifier.197. Electrical systems of machines and devices should be equipped with a device that causes emergency stop in at least the following quantity:
a) two devices causing emergency stop placed on both sides of the machine, according to the European machinery directive,
b) one device causing emergency stop, according to the European machinery directive,
c) three devices causing emergency stop, according to the European machinery directive.198. The emergency stop device of a machine is a part of:
a) the drive system,
b) the electrical system,
c) the fuel system.199. The main parameters of an internal combustion engine affecting work efficiency are:
a) compression ratio, displacement,b) type of carburetor, type of ignition system,
c) torque, rotational speed.
200. The crank-piston system of an internal combustion engine is designed to:
a) convert mechanical energy into hydraulic energy,b) ensure effective operation of the clutch,
c) convert the reciprocating motion of the piston into the rotational motion of the crankshaft.
201. The lubrication system in an internal combustion engine:
a) is responsible for the proper lubrication of the moving parts of the engine that work together,
b) provides regulation of the rotational speed and reduces engine vibrations during operation,c) is responsible for removing hazardous substances produced in the combustion process of the mixture.202. The engine timing system is used for:
a) damping noise and minimizing engine vibrations during operation,
b) controlling the filling of the combustion chamber with air or fuel-air mixture and controlling the emptying of this chamber of exhaust gases,
c) ensuring the optimal composition of the fuel-oil-air mixture for combustion.203. Systems present in internal combustion engines include, among others:
a) hydraulic system, intake system,
b) crankshaft-piston system, fuel supply system, cooling system,
c) exhaust system, pneumatic system, closed system.204. The low-pressure part of the fuel supply system in a diesel engine is:
a) fuel tank and injectors,b) fuel lines, high-pressure pump, common rail,
c) fuel tank, supply pump, filters, fuel lines.
205. The element controlling the flow of coolant in the so-called "large circuit" is:
a) thermocouple,b) thermos,
c) thermostat.
206. Intercooler is:
a) another name for the engine coolant radiator,b) a device for burning solid particles in exhaust gases,
c) an air cooler for turbocharged engines.
207. DPF filter:
a) is a precise cabin filter protecting the operator during work in high dust conditions,
b) is a dry particulate filter responsible for capturing soot from exhaust gases,
c) is used to reduce NOx (nitrogen oxides) emissions.208. The frequency and scope of periodic maintenance of the machine/technical device for which you are taking the exam:
a) are included in the IBWR documentation,b) is determined by the owner of the machine/technical device,
c) are included in the operating and maintenance manual of the machine.
209. The operating and maintenance manual of the machine/technical device is:
a) a set of information necessary for the safe operation of the machine/technical device, which includes among others IBWR,
b) a set of information necessary for the safe operation of the machine/technical device issued by the manufacturer of the machine/technical device,
c) a set of information necessary for the safe operation of the machine/technical device issued by the health and safety services on the construction site.210. The operator of the machine/technical device for which you are taking the exam is not allowed to:
a) make any repairs or maintenance,
b) use the machine/technical device for purposes other than intended,
c) during work, check the technical condition of the machine/technical device.211. A symptom of too low a level of hydraulic oil may be:
a) uneven operation of the diesel engine,b) loud operation of the starter,
c) "jerky" intermittent movement of hydraulic actuators.
212. In the event of detecting tire damage that may pose a threat, the operator should:
a) notify the supervisor and cautiously continue working,b) continue working while reducing the speed and load of the machine,
c) stop working.
213. If the low engine oil pressure warning light comes on, the operator:
a) does not need to take any action,
b) should stop working and turn off the engine,
c) can continue working if the hydraulic system is functioning properly.214. The cause of the machine's loss of stability may be:
a) the machine operating in a suitable location,b) driving on a hardened surface,
c) too low tire pressure.
215. The operating and maintenance manual for the machine/technical device:
a) is established by the owner or user of the machine,b) is used to record information about faults,
c) includes, among other things, information about hazards when operating the machine/technical device.
216. The CE Declaration of Conformity is a document:
a) confirming that the product was manufactured in the countries of the European Union,b) issued by institutions dealing with testing machines for resistance to weather conditions,
c) in which the manufacturer confirms that their product meets all applicable EU requirements regarding safety, health protection, and the environment.
217. Information regarding the use of personal protective equipment and ways to limit the occupational risk the operator can find:
a) in the CE Declaration of Conformity,
b) in the operating and maintenance manual of the machine/technical device,
c) in the service book.218. The operating and maintenance manual of the machine/technical device:
a) is developed by the manufacturer of the machine/technical device or the entity that places the machine/technical device on the market,
b) is created by institutions that conduct testing and accreditation of prototypes of machines/technical devices before allowing them for serial production,c) is created by the construction manager based on information from the manufacturer.219. The operating and maintenance manual of the machine/technical device:
a) does not matter where it is located, the most important thing is that the owner of the machine has it in case of resale of the machine,
b) should be located in the machine or with the device, treated as part of the machine/technical device and be available at any time,
c) should be located in the office along with the company's documentation and be available in case of inspection.220. Identification data of the machine/technical device:
a) should be noted on the inner side of the protective helmet assigned to the given machine/technical device,
b) are located on the nameplate of the machine/technical device, additionally they may be in the marking places described in the manual,
c) due to their importance are always printed in red.221. To minimize the risk of machine/technical device failure, the operator should:
a) regularly visually assess the condition of the machine/technical device and report any noticed irregularities,
b) perform maintenance activities only when the machine/technical device stops working,c) use the machine/technical device until the failure becomes serious.222. The cause of leaking in the concrete pumping system may be:
a) improper sealing of the air hose end,
b) wear of the swing check valve or leaking of the transmission lines,
c) lack of appropriate filters in the pump system.223. The operator uses the operating and maintenance manual of the machine or technical device to:
a) record all faults of the machine or technical device noticed during operation,b) log the hours worked and fuel consumption by the machine,
c) learn the technical specifications, safety rules, and methods of repairing faults.
224. The operational part of the operating and maintenance manual of the machine or technical device includes:
a) a detailed description of the construction and operation of all elements of the machine/technical device,
b) instructions regarding, among others, controlling the machine/technical device,
c) a catalog of spare parts.225. The operating and maintenance manual must always be located with the machine/technical device because:
a) it minimizes the risk of losing it,b) it is necessary for periodic technical inspections,
c) its absence may be a reason for the machine to be deemed unfit for work by the safety inspector.
226. The SAE designation on oil refers to:
a) the multi-season qualification of the oil,b) the pressure of the engine oil,
c) the viscosity of the engine oil, that is, its ability to flow and lubricate.
227. Oil with the symbol SAE 15W-40 means that:
a) at positive temperatures it has the viscosity properties of summer oil SAE 15W,b) at positive temperatures it has the viscosity properties of winter oil class SAE 40,
c) at negative temperatures it has the viscosity properties of winter oil SAE 15W, and at positive temperatures of summer oil class SAE 40.
228. Oil with the symbol SAE 10W-30 means that:
a) at positive temperatures it has the viscosity properties of winter oil SAE 10W,
b) at negative temperatures it has the viscosity properties of winter oil SAE 10W, and at positive temperatures of summer oil class SAE 30,
c) at negative temperatures it has the viscosity properties of summer oil SAE 30.229. The symbol SAE 10W-30 means:
a) hydraulic oil with specified parameters,b) a mixture of engine oil and hydraulic oil,
c) multi-season engine oil with specified parameters.
230. Engine oil with the symbol SAE 5W-40 means that:
a) at negative temperatures it has the viscosity properties of winter oil SAE 5W, and at positive temperatures of summer oil class SAE 40,
b) at negative temperatures it has the viscosity properties of winter oil class SAE 40,c) at positive temperatures it has the viscosity properties of summer oil SAE 5W.
231. The symbol of the warning light shown in the graphic means:
a) low engine oil pressure,
b) low engine oil level,
c) low coolant level.
232. The symbol of the warning light shown in the graphic means:
a) low fuel level,
b) low engine oil pressure,
c) low coolant level.
233. The symbol shown means:
a) engine oil filter,b) hydraulic oil,
c) engine oil.
234. The symbol shown means:
a) hydraulic oil level,b) engine coolant level,
c) engine oil level.
235. In case of the need to dismantle the cover/protection for maintenance, it is not allowed to:
a) record such a fact in the documentation,b) reassemble the cover/protection,
c) start working with the device without installing the cover/protection.
236. The lighting of the battery charging control light signals to the construction machine operator a malfunction of:
a) the starter,
b) the V-belt and/or alternator,
c) the battery switch.237. If during daily technical service before work the operator notices that one of the windows in the cabin is cracked, then:
a) he can start working if it is not the front window,
b) he should not start working,
c) he can start working provided that the window is only cracked and has not "fallen out".238. Before starting work, the operator should:
a) clean the windows by removing snow, ice, and other contaminants,
b) install sunshades on the windows,c) open the windows for better communication.239. When changing hydraulic oils, one should:
a) use any type of oil,
b) use only types of oils recommended by the machine manufacturer,
c) always use only biodegradable oils.240. To ensure the technical efficiency of the working machine, one should:
a) follow technical service and maintenance according to the operating and maintenance instructions,
b) use the machine/technical device without exceeding 50% of the permissible load,c) use the machine/technical device only under full load.241. On the construction site, empty containers for lubricants, oil filters, and used oils should be:
a) placed in a properly marked container for hazardous waste,
b) thrown into the mixed waste container,c) thrown into any waste container.242. Stickers (pictograms) located on the machine/technical device serve to:
a) inform about the prohibition of approaching the machine/technical device,
b) convey important information about safety and the use of the machine/technical device,
c) indicate places where one can stay without any risk.243. Lubrication points in the machine should be serviced:
a) always after 10 hours of operation,
b) according to the operating and maintenance instructions of the machine,
c) during all breaks in work.244. Engine oil with parameters 5W-50 is:
a) a multi-season oil,
b) an oil only for summer,c) an oil only for winter.245. Before starting work on a new type of machine/technical device, the operator should:
a) familiarize themselves with the operating and maintenance instructions of the machine/technical device,
b) perform a periodic inspection,c) conduct a trial work.246. OTC service is:
a) round-the-clock technical service,b) temporary technical service,
c) daily technical service.
247. The basic types of services are:
a) round-the-clock, multi-seasonal, annual, technological service,b) visual, active, passive service,
c) daily, periodic, warehouse, transport service.
248. Batteries, when starting a machine using a supporting battery, should be connected:
a) in series,b) crosswise,
c) in parallel.
249. In the case of electrolyte loss caused by spillage through a cracked battery casing, one should:
a) add electrolyte to the proper level and charge the battery,
b) secure the leakage area in terms of environmental protection, and then replace the battery,
c) add demineralized water to a level of 10 mm above the top edges of the plates.250. The activities performed by the operator as part of daily service during work are:
a) auditory control of the machine's operation and observation of indicators,
b) cleaning the machine,c) replenishing operating fluids and daily lubrication.251. When inflating the tire of a machine, you should:
a) not stand directly next to the inflated wheel,
b) stand next to the inflated wheel provided you are wearing a safety helmet,c) check the condition of the inflated wheel by bending the side of the tire.252. If the manufacturer has provided for operational run-in, it should be carried out:
a) with maximum load,b) without load,
c) with the load recommended in the operating and maintenance manual of the machine/technical device.
253. Driving a machine on public roads should be done in the position:
a) transfer,b) working,
c) transport.
254. When storing a machine, you should ensure that:
a) there are no leaks of operating fluids,
b) no documents of the machine are left in the cabin,c) the machine is facing the exit.255. Securing the machine during storage downtime involves:
a) filling the hydraulic oil tank to the top,b) disassembling all filters and protecting them from moisture,
c) cleaning the machine of dirt and corrosion.
256. The rods of hydraulic cylinders, during the technical service of the storage machine, should be:
a) protected against corrosion,
b) disassembled and cleaned,c) dismantled and the seals replaced.257. During longer storage of the machine, the fuel tank should be:
a) filled to the top to prevent condensation of water vapor inside the tank,
b) filled to 1/3 of its capacity and left open,c) empty to avoid fire hazards.258. During daily operation of the machine, the condition of should be checked:
a) the working pressure value in the hydraulic system,b) tools and equipment,
c) connections and tightness of the hydraulic system.
259. If the machine's engine has not been running for a longer time during daily operation, it should be:
a) started and gently increase the RPM to reach the operating temperature faster,
b) check the oil level and other operating fluids,
c) replace the fuel pre-filter.260. When inflating tires on the working machine, the operator should:
a) stand beside the tire tread or on the other side of the machine,
b) stand directly in front of the tire to monitor the pressure,c) ensure that bystanders are nearby.261. Information regarding faults, their codes, and methods of removal can be found in the document titled:
a) construction machine manual,b) daily report,
c) operating and maintenance instructions.
262. The correct order for connecting the auxiliary battery to the discharged battery in the machine is as follows:
a) positive terminal of the battery in the machine, positive terminal of the auxiliary battery, negative terminal of the auxiliary battery, machine frame,
b) machine frame, positive terminal of the battery in the machine, negative terminal of the auxiliary battery, positive terminal of the auxiliary battery,c) negative terminal of the battery in the machine, positive terminal of the auxiliary battery, negative terminal of the auxiliary battery, machine frame.263. In the event of electrolyte loss in the battery, one should:
a) refill it with water other than distilled,
b) refill it with distilled or demineralized water,
c) refill it with DOT-3 fluid.264. Checking the charge state of the 12 [V] starter battery by "sparking" poses a risk of:
a) explosion of hydrogen escaping from the battery,
b) electric shock from high voltage,c) seizure of the alternator.265. Before storing the wheels in the wheeled machine, one should:
a) loosen to reduce the static load on the mounting screws,b) inflate to maximum pressure to prevent tire deformation,
c) relieve to prevent tire deformation.
266. The scope of daily technical service of a machine does not include:
a) checking the oil level in the engine,
b) control and adjustment of valve clearances,
c) checking the condition of tires and tire pressure.267. The purpose of lubrication in working machines is:
a) to raise the temperature of cooperating elements,b) to increase the engine speed,
c) to reduce friction.
268. The most commonly used type of fuses in the electrical installations of working machines is:
a) automatic fuses,b) differential fuses,
c) cartridge fuses.
269. The phenomenon of electrostatic charge during refueling a machine can lead to:
a) poisoning,b) short circuit of the electrical installation,
c) fire.
270. In the case of parallel connection of two batteries with different rated voltages:
a) thicker cables should be used than with batteries of the same rated voltages,
b) there may be an explosion of the battery with the lower rated voltage,
c) both batteries may discharge.271. When checking the pressure in a tire, the machine should be:
a) unloaded, and the tire should be cold,
b) running and warmed up,c) loaded to make the measurement more accurate.272. The correct way to connect the battery to the charger during charging is:
a) the positive terminal of the battery to the negative terminal of the charger, the negative terminal of the battery to the positive terminal of the charger,b) the positive terminal of the battery to the positive terminal of the charger, the negative terminal of the charger to the "ground" of the machine,
c) the positive terminal of the battery to the positive terminal of the charger, the negative terminal of the battery to the negative terminal of the charger.
273. After connecting the battery, the terminals are lubricated with:
a) grease containing molybdenum disulfide,b) graphite grease,
c) technical vaseline.
274. To safely inflate a tire, one should:
a) stand to the side of the tire tread and use a long pneumatic hose,
b) stand in front of the tire valve while inflating,c) use a short pneumatic hose with a pressure gauge.275. One of the goals of warehouse management is:
a) preparing the machine for transport for the future user,b) repairing damaged machine parts before the next season,
c) protecting the machine from corrosion and other harmful factors during long-term storage.
276. If during daily technical service the operator notices a leak in the cooling system, he should:
a) report the leak and not use the machine until it is repaired,
b) organize fluid and refill to the minimum level if the leak is small,c) refill the coolant and continue working.277. The level of coolant in the expansion tank should be checked:
a) only during periodic technical service,b) only in case of engine overheating,
c) during every daily technical service.
278. If the operator notices a hydraulic fluid leak during daily technical service, he should:
a) report the leak and not use the machine until it is repaired,
b) refill the oil and continue working,c) reduce the RPM and continue working.279. The frequency of performing periodic technical service depends on:
a) the number of hours worked (engine hours),
b) the production date of the machine,c) the number of completed working cycles.280. If during daily technical service the operator notices a low level of engine oil, he should:
a) refill the level with any available oil, even if it is of a different type,
b) refill the oil to the appropriate level,
c) start working if the level is not very low and the warning light is not on.281. The characteristic activity for seasonal technical service is:
a) replacing the coolant with one appropriate for the season,
b) checking the working pressure of the hydraulic system,c) checking the charging voltage.282. The basic service activities that must be performed before starting a diesel engine are:
a) bleeding the fuel system, checking the level of transmission oil, checking the starter,b) checking the level of oil in the gearbox, checking the operation of the working system, checking the operation of the brakes,
c) checking the level of oil in the engine, checking the level of coolant, checking the condition of the air filter.
283. Activities performed as part of daily technical service (OTC) carried out during the operation of the machine are:
a) primarily the sensory control of the proper operation of the machine's working system,
b) observing control and measuring instruments and checking the proper operation of the machine using sight, hearing, and smell,
c) observing only control and measuring indicators such as: oil pressure, engine temperature, hydraulic oil temperature.284. We distinguish, among others, the following types of technical services:
a) transport, arrival, storage, service-repair (ON), catalog,b) arrival, daily, periodic, seasonal, storage, emergency, night,
c) transport, arrival, daily, periodic, seasonal, storage.
285. We perform technical services in order to:
a) ensure the quiet operation of the machine or technical device,b) maintain the value of the machine or technical device at a constant, unchanged level,
c) extend the lifespan and ensure the safe operation of the machine or technical device.
286. A necessary action after pumping the concrete mix is:
a) cleaning up the remnants of the mix from the substrate,b) refilling the water tank,