Concrete conveyors class III
Study mode
Question of 243
1. At what distance measured horizontally from the outermost conductors for power lines with a rated voltage not exceeding 1 [kV] is the operation of a machine or technical device permissible?
a) not less than 5 [m],b) not less than 2 [m],
c) not less than 3 [m].
2. At what distance measured horizontally 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 permissible?
a) not less than 5 [m],
b) not less than 10 [m],c) not less than 15 [m].3. At what distance measured horizontally 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 permissible?
a) not less than 10 [m],
b) not less than 15 [m],c) not less than 5 [m].4. 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 20 [m],b) not less than 10 [m],
c) not less than 15 [m]. Concrete feeders Class III
5. 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 10 [m],c) not less than 15 [m].6. Can workstations be organized in the danger zone under overhead power lines?
a) yes, but only after meeting additional requirements,
b) no, never,c) yes, always.
7. What is the safe distance X for working with a machine or technical device near overhead power lines with a rated voltage of 400 [V]?
a) not less than 3 [m],
b) not less than 30 [m],c) not less than 5 [m].8. What is the safe distance X for working with 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].9. What is the safe distance X for working with 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 15 [m],
c) not less than 10 [m].
10. What is the safe distance X for working with a machine or technical device near overhead power lines with a rated voltage of 20 [kV]?
a) not less than 10 [m],
b) not less than 5 [m],c) not less than 15 [m].11. What is the safe distance X for working with 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 30 [m],
b) not less than 15 [m],
c) not less than 50 [m].12. What is the safe distance X for working with 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 15 [m],b) not less than 30 [m],
c) not less than 10 [m].
13. What is the safe distance X for working with 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].
14. Work in the danger zone (overhead high voltage power line):
a) may be carried out provided that the line is disconnected from voltage, the work is performed in an area limited by groundings, and at least one grounding is visible from the work location,
b) may not be carried out under any circumstances under electric lines in the danger zone,c) may be carried out provided that permission from the work manager has been granted.15. The operator must perform work at a distance X from an active overhead power line with a rated voltage of 400 [V]. He can start work if this distance is:
a) 5 [m],
b) 1 [m],c) 2 [m].16. The operator must perform work at a distance X from an 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].17. The operator must perform work at a distance X from an active overhead power line with a rated voltage of 400 [kV]. He can start work if this distance is:
a) 5 [m],
b) 50 [m],
c) 15 [m].18. If the injured person has a detectable pulse but is not breathing, then:
a) chest compressions should be performed,
b) the airways should be cleared and artificial respiration started,
c) he should not be touched.19. When providing first aid to victims of an accident, it is essential to:
a) assist those in life-threatening situations,
b) move away from the accident scene to call a doctor,c) give medication to the injured.20. When providing first aid to victims of an accident, it is essential to:
a) ensure your own safety,
b) move away from the accident scene to call a doctor,c) assist those in life-threatening situations.21. The obligation to provide first aid to accident victims rests with:
a) everyone, but for any mistakes there is always criminal liability,
b) everyone, because it is always possible to perform part of the rescue tasks,
c) only those who have medical training.22. The accident victim regained consciousness after a few minutes and wants to go home. In this situation, one should:
a) give her something to drink and painkillers,b) let her go home, recommending a visit to the doctor,
c) persuade her to stay and call for medical help.
23. 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 to the inside of the eye.24. The injured person cut their leg on an unsecured sharp element. Providing first aid in this situation is:
a) using a tourniquet,b) sticking a plaster directly on the wound,
c) applying sterile gauze, wrapping the wound with a bandage.
25. Suspecting spinal injury in a person who has fallen from a height and is conscious, one should:
a) seat her in a semi-reclining position,b) lay her in a stable lateral position,
c) not move her and wait for medical services to arrive.
26. To move away from the place where the electric wire was interrupted and the area is under voltage, you should:
a) quickly, with large steps, move away from the source of electric shock by lifting your feet high,b) run as fast as possible to a place that we assess as safe,
c) slowly move away from this place, taking small steps, trying to maintain continuous contact of your feet with the ground.
27. First aid in the case of a first-degree burn is:
a) applying a greasy cream to the burned area,
b) pouring cold water on the burned area,
c) applying ointment to the burned area.28. 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) turn off the power source as quickly as possible,
b) call other colleagues for help with the injured person,c) approach the injured person to provide first aid.29. We perform cardiopulmonary resuscitation until:
a) we have determined that the victim has started breathing and circulation has returned,
b) the fire brigade arrives and secures the area,c) 10 minutes have passed.30. Immediate action in the case of severe bleeding from an injured upper limb includes:
a) lowering the limb below the level of the heart,b) disinfecting the wound with salicylic alcohol,
c) applying a dressing, directly pressing the bleeding site, and raising the limb.
31. In case of a nosebleed, one should:
a) lay the victim on their back,
b) lean the bleeding person's head forward, pinch the nostrils,
c) tilt the head back and place a cold compress on the neck.32. The first step in dealing with a victim of carbon monoxide poisoning in a closed room is:
a) assess ABC,b) conduct a preliminary examination,
c) evacuate the victim from the room as quickly as possible.
33. First aid during seizures caused by an epileptic attack consists of:
a) securing the victim's head from injuries,
b) seating the victim in a semi-sitting position and giving them something to drink,c) placing a wooden object in the victim's mouth to prevent biting the tongue.34. In case of suspected cervical spine injury in a conscious person, one should:
a) seat the victim in a chair with a high back,b) place the victim in a lateral position,
c) not allow the victim to move their head.
35. The most important thing when a person is buried under earth, sand, or gravel is:
a) notify the family,b) wait for the arrival of the ambulance,
c) locate the victim.
36. First aid for a person with a metal rod embedded in their calf involves calling for help and:
a) moving the rod to check if the artery is damaged,
b) securing the rod to prevent movement,
c) removing the embedded rod.37. The indication for using an AED defibrillator is:
a) severe chest pain,b) severe dizziness,
c) absence of detectable breath and pulse in the injured person.
38. During the operation of a machine/technical device for which you are taking the exam, prohibited actions include:
a) making structural changes to the machine/device,
b) changing the working tool,c) performing daily technical service (OTC).39. During the operation of a machine/technical device for which you are taking the exam, prohibited actions include:
a) refueling the machine/device from a canister,
b) cleaning the machine/device using gasoline or solvents whose vapors can create flammable/explosive gas mixtures with air,
c) cleaning the machine/device using a product in accordance with the operating and maintenance instructions.40. The machine/device for which you are taking the exam may only be operated by:
a) a person who has completed training and obtained a positive result on the test conducted by the commission appointed by the Łukasiewicz Research Network – Warsaw Institute of Technology,
b) a person with written confirmation of course completion in the form of a plastic card,c) any adult person with technical education and a driver's license of the appropriate category.41. The qualifications for operating machines/technical devices for which you are taking the exam are issued by:
a) Łukasiewicz Research Network - Warsaw Institute of Technology (SBŁ - WIT),
b) Office of Technical Inspection (UDT),c) County Starosty appropriate for the address of the person applying for the qualifications.42. The qualifications for operating machines/technical devices for which you are taking the exam:
a) are valid indefinitely,
b) are valid for 5 years from the date of issue,c) are valid for 10 years from the date of issue.43. A person holding qualifications to operate: "Concrete Feeders class III" can based on them operate:
a) concrete feeders and machines for spreading concrete mixtures,
b) concrete feeders,
c) concrete feeders and pumps for concrete mixture.44. An employee operating a machine/technical device for which you are taking the exam can take up work provided that:
a) the machine/technical device has a valid UDT inspection,b) has a valid category D driving license,
c) has qualifications to operate this type of machine/technical device.
45. 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) immediately stops work and informs the supervisor of this fact,
b) continues working but informs the supervisor of the situation at the end of the shift,c) continues working but makes an appropriate entry in the maintenance book at the end of the shift.46. Lifting and transporting people using working equipment:
a) is always prohibited,
b) requires the consent of the construction manager,c) is possible, but only outside the public road area.47. The employee operating the machine/technical device for which you are taking the exam has the right to refuse to work when:
a) there is an overhead power line with a rated voltage of 110 [kV] at a distance of 35 meters,
b) this work requires special psychophysical fitness, and his psychophysical condition does not ensure its safe performance and poses a threat to others,
c) he has the required personal protective equipment.48. 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 at a distance of 35 meters,c) he has the required personal protective equipment.49. The employee operating the machine/technical device for which you are taking the exam is obliged to:
a) always have a category B driving license,b) independently perform all current repairs of the machine/technical device,
c) comply with the provisions of the operation and maintenance manual of the machine/technical device.
50. The person directly responsible for the safe operation of the machine for which you are taking the exam is:
a) the machine operator,
b) the construction manager,c) the owner of the machine.51. The operator's book and the qualifications for the machine/technical device you are taking the exam for are issued by:
a) Transport Technical Supervision (TDT),
b) Łukasiewicz Research Network - Warsaw Institute of Technology,
c) Technical Supervision Office (UDT).52. The obligation to use personal protective equipment:
a) arises only from internal regulations,
b) arises from the operating and maintenance instructions as well as health and safety regulations,
c) does not apply on hot days.53. 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) only needs to notify the supervisor,c) is obliged to assist the victims and then immediately leave the accident site.54. We define the danger zone as:
a) a place where work requiring specialized equipment is carried out, and the presence of people is only allowed at night,b) a place where employees only need to wear safety helmets,
c) a place where there are threats to the health and life of people.
55. The danger zone on a construction site:
a) is designated and/or fenced off and marked in a way that prevents unauthorized access,
b) is designated after the construction work has started,c) is always designated by a surveyor.56. The area that the operator should check and secure before starting work with the machine/technical device (because there are health and life hazards) is called:
a) dead zone,b) area of increased risk,
c) danger zone.
57. During the charging of batteries, a gas with highly explosive properties is released. This gas is:
a) ethane,b) methane,
c) hydrogen.
58. Firefighting foam can be used to extinguish fires of group:
a) only C,b) C and D,
c) A and B.
59. Improper use of a snow extinguisher can result in:
a) frostbite caused by the extinguishing agent,
b) burns from the extinguisher components,c) fainting.60. Water, fire blanket, powder extinguisher, carbon dioxide, sand are extinguishing agents that we will use to extinguish:
a) oils,
b) solid bodies,
c) liquids.61. We can call sorbents:
a) fire blankets,
b) materials made of natural or synthetic substances that absorb liquids,
c) petroleum-derived substances.62. Group A fires concern:
a) flammable gases,b) flammable liquids,
c) solid materials whose normal combustion occurs with the formation of glowing coals, e.g. wood, paper, etc..
63. Group B fires concern:
a) flammable gases,
b) liquids and solid materials that melt, e.g. plastics, fuels, oils, etc.,
c) metals, e.g. magnesium, sodium, potassium, aluminum, titanium, etc..64. Group C fires concern:
a) solid materials,
b) gases, e.g. methane, propane, acetylene, hydrogen,
c) flammable liquids.
65. 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.
66. During work, you noticed a sign marked 'Zone 0'. It informs about:
a) a space where an explosive atmosphere occurs,
b) a zone of a certain fire hazard category,c) a zone of fire load in a building.
67. The presented pictogram informs about:
a) the main power switch,b) the internal hydrant,
c) the set of fire protection equipment.
68. Seeing such a pictogram, you are informed about:
a) the assembly point during evacuation,b) the location of first aid,
c) the emergency exit.
69. Seeing such a pictogram, you are informed about:
a) the location of the fire extinguisher,
b) the high temperature affecting the fire extinguisher,c) the prohibition of using the fire extinguisher.70. You see a person whose clothing is on fire and who is fleeing in panic. Your reaction is:
a) you tell him to wait in an upright position for the arrival of rescue services,
b) you try to stop him, lay him on the ground, and start extinguishing,
c) you wave your arms or outer covering strongly next to him to extinguish the burning clothing.71. Electrical devices and installations can be extinguished using:
a) powder or snow extinguishers,
b) foam extinguishers,c) water.72. Burning fuel can be extinguished using:
a) powder, foam, or snow extinguishers,
b) low-octane ethylene,c) water.73. Clothing burning on a person can be extinguished using:
a) material made of plastics,
b) water mist extinguisher or fire blanket,
c) snow or powder extinguisher.74. What obligations does an employee have when they decide to refrain from work due to health and safety regulations?
a) They must immediately inform their supervisor,
b) They have no obligations in this situation,c) They should organize work for others.75. How can an operator prevent hazards in the workplace?
a) By not reporting faults in machines,b) By ignoring health and safety rules,
c) By using personal protective equipment to minimize risk.
76. It is not permissible to position the workplace directly under active overhead power lines or at a horizontal distance from the outermost wires 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.77. How does the operator know what personal protective equipment is required for a given machine/technical device?
a) The operator must independently choose the appropriate protective equipment,b) The choice of personal protective equipment depends on the opinion of colleagues at work,
c) Information about the necessary personal protective equipment is included in the operating and maintenance manual of the machine.
78. The operator should refuse to perform a task when:
a) the work is inconsistent with the purpose of the machine/technical device,
b) the work is being performed at night,c) the work requires familiarization with the location of underground and overhead utilities.79. 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) limiting the use of personal protective equipment,c) inattention and routine.80. Which of the following situations is unacceptable during the use of the machine/technical device?
a) Reporting faults directly to the supervisor,b) Operating the machine without supervision,
c) The presence of unauthorized persons in the danger zone caused by the operation of the machine/technical device.
81. An accident at work is considered:
a) a long-term event related to the work performed, caused by an internal reason, resulting in equipment damage,
b) a sudden event related to the work performed, caused by an external reason, resulting in injury or death,
c) a sudden event unrelated to the work performed, caused by an external reason, resulting in injury or death.82. A fatal accident at work is considered to be an accident in which death occurred:
a) within a period not exceeding 6 months from the date of the accident,
b) only at the moment of the accident,c) after a period exceeding 6 months from the date of the accident.83. Health and safety regulations require:
a) securing the working machine during breaks in its operation against accidental start-up by unauthorized persons,
b) 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,c) performing a warranty inspection of the working machine before the end of one year from its purchase.84. Prohibited actions during the operation of concrete feeders are:
a) checking shields and emergency switches during routine inspections,
b) disassembling connections and opening the mixer cover under pressure,
c) performing maintenance work by qualified personnel.85. In the case 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.86. Seeing a person whose clothes are on fire, you should first:
a) cut off the air supply by rolling the victim or wrapping them in a fire blanket, wet clothing, or a wet blanket,
b) leave the victim standing to facilitate air access and extinguish the flames faster,c) use a fire extinguisher, preferably a snow one, to extinguish the burning clothing, and then try to quickly remove the melted clothing.87. 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 cases of fainting and minor injuries, to improve blood circulation,c) when the victim is breathing but is unconscious and unresponsive.88. An employee has the right to refrain from performing work due to health and safety regulations, notifying their supervisor immediately when:
a) the work they are performing has not been reported to the construction supervision,b) the working conditions do not pose a threat, but are too difficult for them,
c) the working conditions pose a direct threat to health or life.
89. Physical factors generating hazards in the workplace are:
a) lack of or inadequate training for employees,b) lack of appropriate medical examinations for the employee,
c) spilled lubricants, oils, and fuels.
90. Working with a machine/device is not allowed when:
a) it is malfunctioning,
b) its repair was carried out after dark,c) the second operator did not report an upcoming inspection.91. 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 power to be turned off in the line.92. The operator is obliged to refuse to work if:
a) there is no site manager or any other authorized person for supervision at the work site,b) they would have to work under power lines, and the voltage in them has been turned off and the line grounded,
c) the working machine is defective.
93. The danger zone from a machine/technical device is:
a) always the entire fenced construction site,
b) a place where there are threats to the health or life of people,
c) a place where the machine/device cannot be used.94. Accidents at work can result from the poor technical condition of the working machine, for example:
a) injury to a limb, torso, or head,
b) damage to the equipment,c) failure of the drive system.95. Unacceptable behaviors are:
a) operating a defective machine and working under the influence of alcohol,
b) working after dark in a well-lit place, with full concentration of the operator,c) performing daily maintenance of the machine after dark.96. The basic duties of an employee in the field of OHS are:
a) observing OHS regulations and rules, 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, finishing 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.97. The basic principles of operating and using concrete feeders are:
a) if required by the work schedule, the machine can be operated by any operator, regardless of their qualifications in this area,
b) concrete feeders should be used according to their intended purpose, ensuring the proper functioning of safety systems and emergency switches, and in case of malfunctions, work should be immediately stopped,
c) the connecting pipeline can be extended beyond the scope specified in the operating and maintenance instructions only after verifying that the feeder will be able to deliver concrete over such a distance.98. In the case of a person electrocuted, after disconnecting the power source, one should:
a) check the condition of the victim, and if necessary: call for help, clear the airways, perform resuscitation, and use an AED if available,
b) leave the victim alone if they have regained consciousness, without further actions,c) move the victim to another location as quickly as possible.99. After extinguishing flames on a person with burns and calling for help, one should:
a) use a snow extinguisher to cool the burn area,
b) cool the burned areas with cold water for 10-20 minutes, without removing the fused clothing,
c) cool the burned areas with cold water for 10-20 minutes, first removing the fused clothing.
100. Seeing such a pictogram, you are informed about:
a) a location where an external automatic defibrillator is available,
b) a location where a first aid kit is available,c) a location for performing AED.101. Properly performed cardiopulmonary resuscitation (CPR) consists of:
a) 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),
b) connecting an automatic external defibrillator (AED) and following its instructions; CPR is not performed without an AED,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).102. 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.103. Expand the abbreviation IBWR:
a) Implementation of Non-Failure Execution of Works,
b) Instruction for Safe Execution of Works,
c) Information on Safe Execution of Works.104. The Instruction for Safe Execution of Construction Works is:
a) a document confirming qualifications for operating machines and technical devices in earthworks, construction, and road works,b) a plan of the road in construction works,
c) a document containing information regarding safety on the construction site.
105. The BIOZ plan stands for:
a) plan for Safe Health Protection Instruction,b) plan for Safety and Resource Specification,
c) plan for Safety and Health Protection.
106. A factor influencing the 'pumpability' of concrete mix is:
a) the amount of atmospheric air in the mix,b) the temperature of the mix,
c) the content of fine-grained components.
107. Blockages during the pumping of concrete mix can be caused by:
a) using pipes with walls that are too thin,
b) insufficient moistening of the pipe,
c) too many pump cylinders.108. The appropriate ratio of cement to water is important for the 'pumpability' of concrete because:
a) it increases the continuity of the mix,
b) it ensures the proper consistency and flow of the mix through the pipeline,
c) it reduces the content of air bubbles.109. The presence of granite in the concrete mix affects the pumping process because:
a) it hinders the smooth pumping of the mix,
b) it reduces the required force and pressure for pumping,c) it increases the flow of the mix, facilitating its pumping.110. The component of the concrete mix responsible for binding all materials into a uniform mass is:
a) sand,
b) cement,
c) water.111. Before setting the power supply bucket in the upper position, you should:
a) add water to the mixer,
b) fill it with aggregate,
c) add water and cement to the mixer.112. Before securely closing the tank cover and starting the concrete pumping, you should:
a) set the "pumping" switch to the on position,
b) ensure that the mixer is properly filled and ready for pumping,
c) reduce the engine speed.113. The correct order for the procedure of filling the mixer in the concrete feeder is:
a) adding cement and water to the mixer, filling with aggregate,b) completely filling the mixer with aggregate, then adding cement and water,
c) partially filling the mixer with aggregate, adding water, cement, and topping up with aggregate.
114. To remove a blockage in the concrete feeder during operation, you should:
a) increase the pressure in the pipe to push through the blockage,
b) locate the blockage by checking the hardness of the pipe, reduce the pressure, and clear the blocked section,
c) vent the chamber and increase the pressure.115. The mixer in the concrete feeder serves the function of:
a) storing and mixing concrete,
b) stabilizing the consistency of the mixture,c) increasing the air pressure.116. The w/c ratio indicates:
a) the ratio of water to aggregate,b) the ratio of downtime to continuous working time,
c) the ratio of water to cement.
117. A cement paste is called:
a) a mixture of cement and water,
b) a mixture of cement and chemical additives,c) a mixture of cement and aggregates.118. We call gravel aggregate:
a) slate aggregate,b) stones coated with tar,
c) rock fragments that have moved in rivers.
119. The mixer in the concrete feeder is responsible for:
a) transporting the mixture under appropriate pressure to the pressure pipeline,
b) mixing the mixture to ensure its uniformity before pumping,
c) distributing lubricant to the moving parts of the feeder to reduce friction in the system.120. Concrete feeders adapted for towing must meet the requirement of:
a) having two towing points,b) marking similar to that of a slow-moving vehicle,
c) having brakes specified in the Road Code.
121. The location of the concrete feeder in the area of elevated workstations must be:
a) fenced with a rigid fence,b) marked with warning lights,
c) secured with a protective canopy.
122. The automatic pressure switch:
a) automatically stops the concrete pumping when the position of the feeder changes,b) automatically stops the concrete pumping when the pumping pressure exceeds the set value,
c) automatically stops the concrete pumping when the pumping pressure drops below the set value.
123. The mixer of the concrete feeder can be filled:
a) only when the feeder is turned off,b) only with sand,
c) using a scraper.
124. The pressure pipe should be laid in such a way that at the feeder:
a) it runs directly through the support or drawbar,
b) there is a loop of spare pipe laid,c) there is no possibility of raising the pipe.125. The pressure pipe should be selected according to:
a) the type of mixture,b) the season (summer/winter),
c) the pumping pressure.
126. Concrete mix is:
a) completely and uniformly mixed concrete components after the cement binding process is completed,
b) completely and uniformly mixed concrete components that are still in a state allowing compaction by a chosen method,
c) a mixture mainly composed of aggregates and binder, from which bituminous surfaces are made.127. We call concrete:
a) a material obtained by mixing cement, aggregate, water, and possible admixtures and additives, which has already acquired its properties as a result of cement hydration,
b) a material obtained by mixing cement, aggregate, water, and possible admixtures and additives, which is still in a state allowing compaction,c) a mixture mainly composed of aggregates and binder, from which bituminous surfaces are made.128. The basic parameters that characterize an electric battery are:
a) voltage [V], resistance [Ω], power [W],
b) voltage [V], capacity [Ah], starting current [A],
c) voltage [V], power [W], mass [kg].129. Lead-acid batteries can be charged:
a) only in an air-conditioned room,
b) in a place specifically designated for this purpose,
c) in any room.130. The pressure in the tires should be adjusted to:
a) the preferences of the operator,
b) the values given in the operating and maintenance manual,
c) the requirements of the landowner.131. Uneven pressure in the tires:
a) does not affect the operation of the machine,b) improves the driving properties of the machine,
c) reduces the stability of the machine.
132. The delivery of concrete mix in the feeder is the responsibility of:
a) mixer,
b) pressure pipeline,
c) air compressor.133. Air flow control in the working unit ducts is done using:
a) one central control valve,
b) two valves: upper and pressure,
c) pressure air duct.134. The rotational movement of the mixer blades is transmitted by:
a) hydraulic system driving the gearbox,
b) cardan shaft connecting the gearbox to the mixer,
c) belt directly driving the blades.135. The mixer in the concrete feeder consists of:
a) open housing of the chamber with paddles on the spindle,b) open housing and paddles freely rotating in the container,
c) tightly closed housing with paddles on the shaft.
136. Compressed air in the working group of the concrete feeder is supplied:
a) using an air mixer,
b) through the upper air pipe and the pressure pipe,
c) exclusively through the pressure pipe.137. The blades of the mixer in the concrete feeder are driven by:
a) an air compressor,
b) a combustion engine,
c) the drive shaft of the rear axle.138. The combustion engine in the concrete feeder drives the mixer using:
a) a cardan shaft connected to a belt transmission,
b) a rack mechanism with a reducer,c) a hydraulic pump and a cylinder system.139. In a parallel connection of two identical batteries, the voltage of such a system is:
a) the sum of the voltages of the individual batteries,
b) equal to the voltage of a single battery,
c) the product of the voltages of the individual batteries.140. In a series connection of two identical batteries, the voltage of such a system is:
a) the sum of the voltages of the individual batteries,
b) equal to the voltage of a single battery,c) the product of the voltages of the individual batteries.141. Fuses in the electrical installation of the machine protect it from the effects of:
a) short circuits and overloads,
b) high temperature,c) low voltage .142. One of the elements of the electrical system protecting the motor from seizing is:
a) engine oil pressure sensor,
b) speed controller,c) main fuse.143. Gel batteries, being an element of the electrical system, do not require:
a) electrolyte replenishment,
b) replacement in case of housing damage,c) charging with a rectifier.144. Electrical systems of machines and devices should be equipped with a device that causes emergency stop in at least the amount of:
a) three devices causing emergency stop, according to the European machinery directive,
b) one device causing emergency stop, according to the European machinery directive,
c) two devices causing emergency stop placed on both sides of the machine, according to the European machinery directive.145. The emergency stop device of the machine is an element of:
a) fuel system,b) drive system,
c) electrical system.
146. The main parameters of the internal combustion engine that affect work efficiency are:
a) torque, rotational speed,
b) type of carburetor, type of ignition system,c) compression ratio, displacement.147. The crank-piston system of the internal combustion engine is designed to:
a) convert the reciprocating motion of the piston into the rotational motion of the crankshaft,
b) ensure the effective operation of the clutch,c) convert mechanical energy into hydraulic energy.148. The lubrication system in the 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.149. The timing system of the engine 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.150. Systems present in internal combustion engines include, among others:
a) crank-piston system, fuel supply system, cooling system,
b) exhaust system, pneumatic system, closed system,c) hydraulic system, intake system.151. The low-pressure part of the diesel engine fuel supply system is:
a) fuel lines, high-pressure pump, common rail,
b) fuel tank, supply pump, filters, fuel lines,
c) fuel tank and injectors.152. The element controlling the flow of coolant in the so-called "large circuit" is:
a) thermosiphon,
b) thermostat,
c) thermocouple.153. An intercooler is:
a) another name for the engine coolant radiator,
b) an air cooler for turbocharged engines,
c) a device for burning solid particles in exhaust gases.154. The DPF filter:
a) is used to reduce NOx (nitrogen oxides) emissions,
b) is a dry particulate filter responsible, among other things, for capturing soot from exhaust gases,
c) is a precise cabin filter protecting the operator while working in high dust conditions.155. The air compressor in the concrete feeder is used for:
a) compressing air that is used for transporting concrete,
b) aerating the concrete mix during transport,c) supplying the machine with hydraulic oil under high pressure.156. Additional functions that an air compressor in a concrete feeder can perform are:
a) powering devices for monitoring the pumpability of concrete,b) driving the concrete heating system during transport,
c) coupling the rotor drive in the concrete mixer.
157. The standard equipment of a concrete feeder does not include:
a) a mixer used for evenly mixing concrete components,
b) an automatic aggregate dispenser in a hydraulic system,
c) a combustion engine driving the air compressor.158. The concrete feeder includes, among others, the following elements:
a) a loading system powered by compressed air, a pressure pipeline, and a mechanical feeder,
b) a load-bearing frame on a chassis, a combustion engine, an air compressor, a mixer, a loading system, a pressure pipeline,
c) a cooling compressor system, a mixing system, and a hydraulic hose.159. The control system of the concrete feeder consists of:
a) a control cabinet, an emergency switch, a lever, and valves,
b) an inverter, a four-section distributor,c) temperature sensors of the mixture, a measuring system for testing moisture.160. The Cardan shaft in the concrete feeder is driven by:
a) a planetary gearbox,
b) V-belts,
c) an electric motor.161. The air compressor in the concrete feeder is used for:
a) driving the central lubrication system,b) generating a vacuum that removes impurities from the oil separator,
c) creating overpressure in the mixing chamber.
162. The main components of the pneumatic system of the concrete feeder are:
a) hydraulic pump, blower, pressure regulator,
b) air compressor, air filter, oil separator,
c) air tank, air preparation unit, pressure pipe.163. The frequency and scope of periodic maintenance of the machine/technical device for which you are taking the exam:
a) are included in the operating and maintenance manual of the machine,
b) is determined by the owner of the machine/technical device,c) are included in the IBWR documentation.164. 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 issued by the manufacturer of the machine/technical device,
b) 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,c) a set of information necessary for the safe operation of the machine/technical device, which includes among others IBWR.165. The operator of the machine/technical device for which you are taking the exam is not allowed to:
a) check the technical condition of the machine/technical device during operation,
b) use the machine/technical device for purposes other than intended,
c) make any repairs or maintenance.166. In the event of detecting tire damage that may pose a threat, the operator should:
a) notify the supervisor and cautiously continue working,
b) stop working,
c) continue working while reducing the speed and load of the machine.167. The cause of the machine's loss of stability may be:
a) the machine operating in a location suitable for it,b) driving on a hardened surface,
c) too low tire pressure.
168. The operating and maintenance manual for the machine/technical device:
a) is established by the owner or user of the machine,
b) includes, among other things, information about hazards during the operation of the machine/technical device,
c) is used to record information about faults.169. The CE Declaration of Conformity is a document:
a) issued by institutions that test machines for resistance to weather conditions,
b) in which the manufacturer confirms that their product meets all applicable EU requirements regarding safety, health protection, and environmental protection,
c) confirming that the product was manufactured in the countries of the European Union.170. Information regarding the use of personal protective equipment and ways to limit occupational risk can be found by the operator:
a) in the CE Declaration of Conformity,b) in the service book,
c) in the operating and maintenance manual for the machine/technical device.
171. The operating and maintenance manual for the machine/technical device:
a) is created by institutions that conduct research and accreditation of machine/technical device prototypes before allowing them for serial production,
b) is developed by the manufacturer of the machine/technical device or the entity that introduces the machine/technical device to the market,
c) is created by the construction manager based on information from the manufacturer.172. The operating and maintenance manual for 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 office along with the company's documentation and be available in case of inspection,
c) should be located in the machine or with the device, treated as part of the machine/technical device and be available at any time.
173. Identification data of the machine/technical device:
a) are located on the nameplate of the machine/technical device, additionally they may be in the marking places described in the manual,
b) due to their importance are always printed in red,c) should be noted on the inner side of the protective helmet assigned to the given machine/technical device.174. To minimize the risk of malfunction of the machine/technical device, the operator should:
a) perform maintenance activities only when the machine/technical device stops working,
b) regularly visually assess the condition of the machine/technical device and report any noticed irregularities,
c) use the machine/technical device until the failure becomes serious.175. When assessing the hydraulic and pneumatic installation in the concrete feeder, one should:
a) turn off the machine and reduce the pressure to a minimum,
b) check the connections under full pressure to obtain a more accurate result,c) turn on the machine to facilitate the flow of fluids in the system during inspection.176. Hydraulic and pneumatic installations in concrete feeders:
a) should be checked after turning off the machine and reducing the pressure to a minimum,
b) should be monitored only during the operation of the machine - for time-saving purposes,c) do not require ongoing inspection except for joints and hoses, which can be checked visually only, without the need to reduce pressure.177. The cause of leaking in the concrete pumping system may be:
a) lack of appropriate filters in the pump system,b) improper sealing of the air hose end,
c) wear of the check valve or leaking of the transmission lines.
178. Breaking in the machine during the initial period of operation is:
a) an intensive full load test of the machine,
b) the process of achieving optimal clearances and even wear of parts,
c) a stage of machine operation without load.179. 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.
180. The service part of the operating and maintenance manual of the machine or technical device includes:
a) a catalog of spare parts,b) a detailed description of the construction and operation of all elements of the machine/technical device,
c) instructions regarding, among others, controlling the machine/technical device.
181. The operating and maintenance manual must always be present with the machine/technical device because:
a) it is essential for periodic technical inspections,b) it minimizes the risk of it being lost,
c) its absence may be a reason for the machine not being allowed to operate by the health and safety inspector.
182. Checking the operation of all feeder systems before starting work aims to:
a) check the concrete consumption,
b) reduce downtime during concrete pumping,
c) extend the time for preparing the machine for operation.183. Before starting the pressure pipeline in the concrete feeder, it is necessary to check:
a) the level of concrete in the machine's hopper,b) only the pipeline connections,
c) the correct layout of the entire pipeline.
184. When cleaning the concrete feeder, one should not use:
a) salty water,
b) anti-corrosive agent,c) compressed air.185. When cleaning the concrete feeder after finishing work, one should:
a) clean only the external parts of the feeder,
b) ensure that electrical components are not flooded with water,
c) thoroughly wash the electrical components.186. The SAE designation on oil refers to:
a) engine oil pressure,
b) engine oil viscosity, that is, its ability to flow and lubricate,
c) multi-season qualification of the oil.187. 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.
188. Oil with the symbol SAE 10W-30 means that:
a) at negative temperatures it has the viscosity properties of winter oil SAE 10W, and at positive temperatures of summer oil class SAE 30,
b) at positive temperatures it has the viscosity properties of winter oil SAE 10W,c) at negative temperatures it has the viscosity properties of summer oil SAE 30.189. The symbol SAE 10W-30 means:
a) a mixture of engine oil and hydraulic oil,b) hydraulic oil with specified parameters,
c) multi-season engine oil with specified parameters.
190. Engine oil with the symbol SAE 5W-40 means that:
a) at negative temperatures it has the viscosity properties of winter oil class SAE 40,
b) at negative temperatures it has the viscosity properties of winter oil SAE 5W, and at positive temperatures of summer oil class SAE 40,
c) at positive temperatures it has the viscosity properties of summer oil SAE 5W.
191. The symbol of the warning light presented in the graphic means:
a) low engine oil level,
b) low engine oil pressure,c) low coolant level.
192. The symbol of the warning light presented in the graphic means:
a) low engine oil pressure,
b) low coolant level,c) low fuel level.
193. The symbol of the light presented means:
a) engine oil,
b) engine oil filter,c) hydraulic oil.
194. The symbol of the light presented means:
a) engine oil level,
b) engine coolant level,c) hydraulic oil level.195. The maintenance activities related to the pneumatic installation include:
a) regular adjustment of the safety valve,
b) checking and possibly removing water from the installation,
c) adding water to the system.196. The maintenance activities before starting work include:
a) performing a work cycle without materials,
b) visual inspection and lubrication,
c) ordering materials (aggregate, sand, etc.) needed for the given workday.197. In case of the need to dismantle the cover/protection to carry out maintenance, it is prohibited to:
a) start working with the device without installing the cover/protection,
b) reinstall the cover/protection,c) record such a fact in the documentation.198. The lighting of the battery charging indicator signals to the construction machine operator a malfunction of:
a) the V-belt and/or alternator,
b) the battery switch,c) the starter.199. When changing hydraulic oils, it is necessary to:
a) use any type of oil,
b) use only types of oils recommended by the machine manufacturer,
c) always use only biodegradable oils.200. To ensure the technical efficiency of the working machine, it is necessary to:
a) operate the machine/device only under full load,b) operate the machine/device not exceeding 50% of the permissible load,
c) follow technical maintenance and servicing according to the operating and maintenance instructions.
201. On the construction site, empty containers for lubricants, oil filters, and used oils should be:
a) thrown into the mixed waste container,b) thrown into any waste container,
c) placed in a properly marked hazardous waste container.
202. Stickers (pictograms) located on the machine/technical device serve to:
a) convey important information about safety and the use of the machine/technical device,
b) indicate places where one can stay without any risk,c) inform about the prohibition of approaching the machine/technical device.203. Lubrication points in the machine should be serviced:
a) during all breaks in work,
b) according to the operating and maintenance instructions of the machine,
c) always after 10 hours of work.204. Engine oil with parameters 5W-50 is:
a) oil only for winter,
b) multi-season oil,
c) oil only for summer.205. 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) carry out a trial work.206. OTC service is:
a) round-the-clock technical service,b) temporary technical service,
c) daily technical service.
207. 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.
208. Batteries, when starting a machine using a supporting battery, should be connected:
a) crosswise,b) in series,
c) in parallel.
209. In the event of electrolyte loss caused by spillage through a cracked battery casing, one should:
a) add demineralized water to a level of 10 mm above the upper edges of the plates,
b) secure the leak area in terms of environmental protection, and then replace the battery,
c) add electrolyte to the proper level and charge the battery.210. The activities performed by the operator as part of daily service during work are:
a) cleaning the machine,b) replenishing operating fluids and daily lubrication,
c) auditory control of the machine's operation and observation of indicators.
211. When inflating the tire of a machine wheel, you should:
a) check the condition of the inflated wheel by bending the side of the tire,b) stand next to the inflated wheel provided you are wearing a safety helmet,
c) not stand directly next to the inflated wheel.
212. If the manufacturer has provided for operational run-in, it should be carried out:
a) without load,
b) with the load recommended in the operating and maintenance manual of the machine/technical device,
c) with maximum load.213. During the storage of a machine on a wheeled chassis, the wheels of the machine should be:
a) secured with wedges,b) removed from the machine,
c) unloaded.
214. Driving a machine on public roads should be done in the position:
a) transfer,b) working,
c) transport.
215. Securing the machine during storage downtime involves:
a) cleaning the machine of dirt and corrosion,
b) disassembling all filters and protecting them from moisture,c) filling the hydraulic oil tank to the top.216. 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.217. If the machine's engine has not been running for a longer time during daily maintenance, you should:
a) start the engine and gently increase the RPM to reach the operating temperature faster,b) replace the fuel pre-filter,
c) check the oil level and other operating fluids.
218. When inflating tires on a working machine, the operator should:
a) ensure that bystanders are nearby,b) stand directly in front of the tire to monitor the pressure,
c) stand beside the tire tread or on the other side of the machine.
219. Information regarding faults, their codes, and methods of removal can be found in a document called:
a) operating and maintenance manual,
b) daily report,c) construction machine book.220. The correct order for connecting the auxiliary battery to the discharged battery in the machine is as follows:
a) machine frame, positive terminal of the machine's battery, negative terminal of the auxiliary battery, positive terminal of the auxiliary battery,
b) positive terminal of the machine's battery, positive terminal of the auxiliary battery, negative terminal of the auxiliary battery, machine frame,
c) negative terminal of the machine's battery, positive terminal of the auxiliary battery, negative terminal of the auxiliary battery, machine frame.221. In case of electrolyte loss in the battery, one should:
a) top it up with water other than distilled,
b) top it up with distilled or demineralized water,
c) top it up with DOT-3 fluid.222. Checking the charge state of a 12 [V] starter battery by "sparking" poses a risk of:
a) seizing the alternator,b) electric shock from high voltage,
c) explosion of hydrogen escaping from the battery.
223. Before storing wheels in a wheeled machine, one should:
a) relieve the load to prevent tire deformation,
b) inflate to maximum pressure to prevent tire deformation,c) loosen to reduce the static load on the mounting screws.224. The scope of daily technical service of the machine does not include:
a) checking and adjusting valve clearances,
b) checking the oil level in the engine,c) checking the condition of the tires and tire pressure.225. 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.
226. The most commonly used type of fuses in electrical installations of working machines is:
a) fuse links,
b) automatic fuses,c) differential fuses.227. The phenomenon of electrostatic charge during refueling a machine can lead to:
a) fire,
b) poisoning,c) short circuit of the electrical installation.228. In the case of connecting two batteries in parallel with different rated voltages:
a) thicker cables should be used than with batteries of the same rated voltages,b) both batteries may discharge,
c) there may be an explosion of the battery with the lower rated voltage.
229. When checking the pressure in a tire, the machine should be:
a) loaded to make the measurement more accurate,
b) unloaded, and the tire should be cold,
c) started and warmed up.230. The correct way to connect a battery to a charger during charging is:
a) 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,
b) 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,c) 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.231. After connecting the battery, the terminals are lubricated with:
a) graphite grease,b) grease containing molybdenum disulfide,
c) technical vaseline.
232. To safely inflate a tire, one should:
a) stand to the side of the tire tread and use a long pneumatic hose,
b) stand opposite the tire valve while inflating,c) use a short pneumatic hose with a manometer.233. One of the goals of warehouse management is:
a) repairing damaged machine parts before the next season,
b) protecting the machine from corrosion and other harmful factors during long-term storage,
c) preparing the machine for transport for the future user.234. 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) top up the coolant and continue working.235. The level of coolant in the expansion tank should be checked:
a) during every daily technical service,
b) only during periodic technical service,c) only in case of engine overheating.236. 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.237. If during daily technical service the operator notices a low level of engine oil, he should:
a) continue working if the level is not very low and the warning light is not on,
b) top up the oil to the appropriate level,
c) top up the level with any available oil, even if it is of a different type.238. A characteristic activity for seasonal technical service is:
a) checking the working pressure value of the hydraulic system,b) checking the charging voltage value,
c) replacing the coolant with one appropriate for the season.
239. The basic service activities that should 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 oil level in the gearbox, checking the operation of the working system, checking the operation of the brakes,
c) checking the oil level in the engine, checking the coolant level, checking the condition of the air filter.
240. Activities performed as part of daily technical service (OTC) carried out during the operation of the machine include:
a) observing control and measuring instruments and monitoring the proper operation of the machine using sight, hearing, and smell,
b) observing only control and measuring indicators such as: oil pressure, engine temperature, hydraulic oil temperature,c) primarily conducting a sensory check of the proper functioning of the machine's working system.241. We distinguish, among others, the following types of technical services:
a) transport, reaching, storage, operational-repair (ON), cataloging,
b) transport, reaching, daily, periodic, seasonal, storage,
c) reaching, daily, periodic, seasonal, storage, emergency, night.242. We perform technical services for the purpose of:
a) ensuring quiet operation of the machine or technical device,b) maintaining the value of the machine or technical device at a constant, unchanging level,
c) extending the lifespan and ensuring safe operation of the machine or technical device.
243. A necessary action after pumping concrete mix is:
a) cleaning up the remnants of the mix from the ground,b) refilling the water tank,