Texas CDL Pre-trip Inspection Exam Prep Test

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Texas CDL Pre-trip Inspection Exam Prep Test - Quiz

Welcome; here is a Texas CDL Pre-Trip Inspection Exam Prep Test. The Pre-Trip Inspection is all about examining and analyzing the vehicle and all its systems, such as the vehicle lights, the coupling system, the fuel tanks, engine compartment, tires, and brakes, etc. This test will have your knowledge test for a better performance. So, are you ready?


Questions and Answers
  • 1. 

    What Releases the fifth wheel locking jaw so the trailer can be uncoupled?  

    • A.

      Apron

    • B.

      Release arm

    • C.

      Locking pins

    • D.

      Drawbar

    Correct Answer
    B. Release arm
    Explanation
    The release arm is responsible for releasing the fifth wheel locking jaw, allowing the trailer to be uncoupled. This arm is typically located on the tractor and can be manually operated to disengage the locking mechanism. Once the release arm is activated, the locking jaw is released, allowing the trailer to be separated from the tractor.

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  • 2. 

    What are the brackets, bolts or bushings that are used to attach spring and/or air bag to the axle and vehicle?

    • A.

      Torque

    • B.

      Mounting Bolts

    • C.

      Spring Mounts

    • D.

      Shock absorbers

    Correct Answer
    C. Spring Mounts
    Explanation
    Spring mounts are the brackets, bolts, or bushings that are used to attach the spring and/or air bag to the axle and vehicle. These mounts provide support and stability to the suspension system, allowing the spring to absorb shocks and maintain proper alignment between the axle and the vehicle. They play a crucial role in ensuring a smooth and comfortable ride by reducing vibrations and controlling the movement of the suspension components.

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  • 3. 

    When making sure that the door is not damaged, operates smoothly, closes securely from the inside, hand rails are secure, steps are clear and the treads are not loose or worn excessively you are inspecting:

    • A.

      Emergency Exit

    • B.

      Seating

    • C.

      Emergency equipment

    • D.

      Passenger Entry

    Correct Answer
    D. Passenger Entry
    Explanation
    When inspecting the passenger entry, you are checking various aspects to ensure the door is not damaged, operates smoothly, and closes securely from the inside. You also inspect the handrails to make sure they are secure and the steps are clear. Additionally, you check the treads to ensure they are not loose or excessively worn. This inspection is important to ensure the safety and functionality of the passenger entry area.

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  • 4. 

    If equipped, you should check what piece of equipment to see that it is secure, free of damage, and strong enough to prevent cargo from shifting, forward possibly injuring the drive when the vehicle abruptly stops.

    • A.

      Platform

    • B.

      Landing Gear

    • C.

      Frame

    • D.

      Header board

    Correct Answer
    D. Header board
    Explanation
    The header board should be checked if equipped, as it is responsible for preventing cargo from shifting forward and potentially injuring the driver when the vehicle abruptly stops. It ensures that the cargo remains secure, free of damage, and prevents any potential accidents or injuries.

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  • 5. 

    What heats the cab and prevents frost from forming on the windshield?

    • A.

      Header board

    • B.

      Heater Defroster

    • C.

      Air Conditioner

    • D.

      Wipers/Windshield

    Correct Answer
    B. Heater Defroster
    Explanation
    The correct answer is Heater Defroster. The heater defroster in a vehicle is responsible for heating the cab and preventing frost from forming on the windshield. It blows warm air onto the windshield, melting any frost or ice that may have formed, ensuring clear visibility for the driver.

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  • 6. 

    What system consists of external piping for conducting combustion gases from engine (leaks could cause asphyxiation of driver or passengers?)

    • A.

      Exhaust

    • B.

      Heater

    • C.

      Fuel

    • D.

      None of the above

    Correct Answer
    A. Exhaust
    Explanation
    The correct answer is "Exhaust." The exhaust system consists of external piping that conducts combustion gases from the engine. If there are leaks in the exhaust system, these gases could enter the cabin and cause asphyxiation of the driver or passengers.

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  • 7. 

    What should you check so that it is solid, clear of objects and securely bolted to the tractor frame?

    • A.

      Platform

    • B.

      Apron

    • C.

      Kingpin

    • D.

      Catwalk

    Correct Answer
    D. Catwalk
    Explanation
    You should check the catwalk to ensure that it is solid, clear of objects, and securely bolted to the tractor frame. This is important for safety reasons as a loose or unstable catwalk can pose a risk of accidents or injuries.

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  • 8. 

    What drives the generator and , if belt driven, should not be frayed, cracked and should be snug (not more than 3⁄4 of an inch give?)

    • A.

      Power steering bolt

    • B.

      Air compressor belt

    • C.

      Water pump belt

    • D.

      Alternator belt

    Correct Answer
    D. Alternator belt
    Explanation
    The alternator belt drives the generator and, if belt driven, should not be frayed, cracked, and should be snug (not more than 3/4 of an inch give).

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  • 9. 

    When inspecting doors, roof hatches, or that push-out windows are not damaged you are inspecting:

    • A.

      Lighting Indicators

    • B.

      Emergency Exists

    • C.

      Stop Arms

    • D.

      Passenger Lift

    Correct Answer
    B. Emergency Exists
    Explanation
    When inspecting doors, roof hatches, or push-out windows, you are checking for any damages or issues that could affect the emergency exits. These emergency exits are crucial in ensuring the safety of passengers in case of an emergency situation. Therefore, it is important to inspect them regularly to ensure they are in proper working condition and can be easily accessed if needed.

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  • 10. 

    What gauge/light should be checked, with the engine running, to see that the temperature level begins to climb to the normal operating range?

    • A.

      Power Steering

    • B.

      Temperature

    • C.

      Air Compressor

    • D.

      Oil

    Correct Answer
    B. Temperature
    Explanation
    To ensure that the temperature level begins to climb to the normal operating range, the gauge/light that should be checked is the temperature gauge/light. This gauge/light indicates the temperature of the engine coolant and allows the driver to monitor whether the engine is operating at the correct temperature. By checking this gauge/light with the engine running, one can ensure that the temperature is increasing towards the normal operating range, indicating that the engine is functioning properly.

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  • 11. 

    What provided visibility to the sides, rear and inside of the vehicle and must be properly adjusted and mounted securely with no loose fittings?

    • A.

      Windshield

    • B.

      Mounting Bolts

    • C.

      Mirrors

    • D.

      Headlights

    Correct Answer
    C. Mirrors
    Explanation
    Mirrors provide visibility to the sides, rear, and inside of the vehicle. They need to be properly adjusted and securely mounted with no loose fittings to ensure clear and accurate visibility. Mirrors are essential for safe driving as they help drivers see other vehicles and objects around them, enabling them to make informed decisions and avoid potential accidents.

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  • 12. 

    What belt should you make sure is securely mounted, adjusts and latches properly?

    • A.

      Air compressor

    • B.

      Safety Seat

    • C.

      Steering

    • D.

      Water Pump

    Correct Answer
    B. Safety Seat
    Explanation
    The safety seat should be securely mounted, adjustable, and latch properly to ensure the safety of the person using it. This is important in case of any sudden movements or accidents, as a properly secured safety seat can help prevent injuries and keep the person in place.

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  • 13. 

    What is being inspected when you pump the pedal 3 times and hold down for 5 seconds making sure that the pedal should not move during the 5 seconds?

    • A.

      Hydraulic Brake

    • B.

      Air Brake

    • C.

      Parking brake

    • D.

      All of the above

    Correct Answer
    A. Hydraulic Brake
    Explanation
    When you pump the pedal 3 times and hold down for 5 seconds without any movement, you are inspecting the hydraulic brake system. This process helps to check the integrity and functionality of the hydraulic brake system by ensuring that there are no leaks or air bubbles in the system. If the pedal does not move during the 5 seconds, it indicates that the hydraulic pressure is being maintained and the brakes are in good working condition.

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  • 14. 

    When inspecting for cracks, broken welds, holes or other damage to the longitudinal frame member, cross members, box or floor you inspecting the:

    • A.

      Fuel tank

    • B.

      Exhaust system

    • C.

      Doos

    • D.

      Frame

    Correct Answer
    D. Frame
    Explanation
    When inspecting for cracks, broken welds, holes or other damage to the longitudinal frame member, cross members, box or floor, you are inspecting the frame of the vehicle. The frame is the structural backbone of the vehicle, providing support and stability. Inspecting for damage in these areas is important to ensure the overall integrity and safety of the vehicle.

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  • 15. 

    What should be fully raised, have not missing parts, crank handle secured, and the support frame not damaged?

    • A.

      Landing Gear

    • B.

      Stop arm

    • C.

      Tandem release arm

    • D.

      Cargo Lift

    Correct Answer
    A. Landing Gear
    Explanation
    The landing gear should be fully raised, have no missing parts, the crank handle should be secured, and the support frame should not be damaged. This is important for the safe operation of an aircraft during takeoff and landing. If any of these conditions are not met, it could lead to instability or failure of the landing gear system, posing a significant risk to the aircraft and its occupants.

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  • 16. 

    Which of the following should make an audible sound?

    • A.

      Parking break

    • B.

      Hydraulic brake

    • C.

      Windshield wipers/washers

    • D.

      Air or electric horn

    Correct Answer
    D. Air or electric horn
    Explanation
    An air or electric horn should make an audible sound because it is designed to produce a loud noise. This is important for alerting other drivers or pedestrians in certain situations, such as to signal a warning or to indicate the presence of the vehicle. In contrast, a parking brake, hydraulic brake, and windshield wipers/washers do not typically produce an audible sound as they serve different functions and are not intended to be used as a warning device.

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  • 17. 

    What transmits power from the transmission to the drive axle?

    • A.

      Air compressor belt

    • B.

      Drive Shaft

    • C.

      Steering play

    • D.

      Power steering belt

    Correct Answer
    B. Drive Shaft
    Explanation
    The drive shaft is responsible for transmitting power from the transmission to the drive axle. It is a mechanical component that connects the transmission to the axle, allowing the power generated by the engine to be transferred to the wheels. The drive shaft rotates at high speeds, transferring torque and enabling the vehicle to move forward or backward. It is an essential part of the drivetrain system and plays a crucial role in the overall operation of the vehicle.

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  • 18. 

    By checking the connecting links, arms, and rods from the steering box to the wheel you are inspecting the:

    • A.

      Steering Linkage

    • B.

      Steering play

    • C.

      Steering box

    • D.

      Power steering fluid

    Correct Answer
    A. Steering Linkage
    Explanation
    By checking the connecting links, arms, and rods from the steering box to the wheel, you are inspecting the steering linkage. The steering linkage is responsible for transmitting the steering input from the driver to the wheels, allowing the vehicle to turn. By inspecting these components, you can ensure that they are properly connected and functioning, which is crucial for safe and efficient steering.

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  • 19. 

    What converts air pressure to mechanical force to operate wheel brakes?

    • A.

      Brake hoses

    • B.

      Brake Linings

    • C.

      Brake Chamber

    • D.

      Drum Brake

    Correct Answer
    C. Brake Chamber
    Explanation
    A brake chamber is a component in a braking system that converts air pressure into mechanical force. When air pressure is applied to the brake chamber, it pushes a rod or diaphragm, which in turn operates the wheel brakes, causing them to engage and apply friction to the brake drums or discs. This mechanical force generated by the brake chamber is what allows the wheel brakes to effectively slow down or stop a vehicle.

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  • 20. 

    Inspect the following to see that the frames are no broken, firmly attached to the floor and that the cushions are attached securely to the frame:

    • A.

      Emergency equipment

    • B.

      Lighting indicators

    • C.

      Seats

    • D.

      None of the above

    Correct Answer
    C. Seats
    Explanation
    The correct answer is seats because the explanation states that one should inspect the frames to ensure they are not broken and firmly attached to the floor, and also check that the cushions are securely attached to the frame. This implies that the seats need to be checked for their condition and attachment. The other options, emergency equipment, lighting indicators, and none of the above, do not mention anything about frames, cushions, or attachment to the floor, so they are not relevant to the given explanation.

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  • 21. 

    Inspect the emergency equipment to make sure it consists of:

    • A.

      Charged and rated fire extinguisher

    • B.

      3 red reflective triangles

    • C.

      Spare fuses

    • D.

      All of the above

    Correct Answer
    D. All of the above
    Explanation
    The correct answer is "All of the above" because it encompasses all the mentioned items - a charged and rated fire extinguisher, 3 red reflective triangles, and spare fuses. Inspecting the emergency equipment ensures that all these items are present and in proper condition, which is crucial for emergency situations.

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  • 22. 

    What should not be bent, damaged, or rusted through and should be evenly centered, with the dual wheels and tires evenly separated?

    • A.

      Spacers

    • B.

      Lug Nuts

    • C.

      Rims

    • D.

      All of the above

    Correct Answer
    A. Spacers
    Explanation
    Spacers should not be bent, damaged, or rusted through and should be evenly centered, with the dual wheels and tires evenly separated. This is because spacers are used to create space between the wheel and the hub, allowing for a wider track width or clearance for larger brakes. If the spacers are bent, damaged, or rusted through, they may not provide the necessary support and stability, which can lead to uneven tire wear, handling issues, and potential safety hazards. Therefore, it is important to ensure that spacers are in good condition and properly installed.

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  • 23. 

    What gauge indicates the alternator and/or generator is charging?

    • A.

      Oil pressure

    • B.

      Temperature

    • C.

      Ammeter/ Voltmeter

    • D.

      All of the above

    Correct Answer
    C. Ammeter/ Voltmeter
    Explanation
    The ammeter/voltmeter gauge indicates whether the alternator and/or generator is charging. This gauge measures the electrical current or voltage being produced by the alternator or generator, and if it shows a positive reading, it means that the charging system is functioning properly. The oil pressure and temperature gauges are not directly related to the charging system and do not indicate whether the alternator or generator is charging.

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  • 24. 

    There should be minimum tread depth of 4/32 of and inch for the:

    • A.

      Spare tires

    • B.

      None-Drive axle tires

    • C.

      Steering axle Tires

    • D.

      None of the above

    Correct Answer
    C. Steering axle Tires
    Explanation
    The correct answer is Steering axle Tires. This is because the tread depth of the steering axle tires is crucial for maintaining control and stability while driving. The minimum tread depth of 4/32 of an inch ensures proper traction and grip on the road, especially during wet or slippery conditions. Spare tires and none-drive axle tires may not require the same level of tread depth as the steering axle tires.

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  • 25. 

    What should you make sure is secured, cap(s) are on tight, and has no leaks from the tank(s) or lines?

    • A.

      Fuel Tank

    • B.

      Battery Box

    • C.

      Water pump

    • D.

      Air compressor

    Correct Answer
    A. Fuel Tank
    Explanation
    You should make sure that the fuel tank is secured, the cap is on tight, and there are no leaks from the tank or lines. This is important for safety reasons as fuel leaks can lead to fire hazards and environmental contamination. Additionally, a secure fuel tank ensures that fuel is properly contained and available for use when needed.

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  • 26. 

    The angle between the push rod and adjuster arm should be a little over 90 degrees when the brakes are released, and not less than 90 degrees when the brakes are applied refers to the

    • A.

      Shock absorbers

    • B.

      Brake chambers

    • C.

      Brake linings

    • D.

      Slack adjusters

    Correct Answer
    D. Slack adjusters
    Explanation
    The statement is referring to the angle between the push rod and adjuster arm, which is a characteristic of slack adjusters. Slack adjusters are used in air brake systems to ensure that the brake shoes are properly adjusted to maintain the correct clearance between the brake linings and the brake drums. The angle between the push rod and adjuster arm is important because it determines the amount of force applied to the brake shoes when the brakes are applied.

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  • 27. 

    What should be clean with no illegal stickers, obstructions or damage to the glass?

    • A.

      Lighting indicators

    • B.

      Windshield

    • C.

      Mirrors

    • D.

      Headlights

    Correct Answer
    B. Windshield
    Explanation
    The windshield should be clean with no illegal stickers, obstructions or damage to the glass. This is important for visibility while driving and to ensure the safety of the driver and other road users.

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  • 28. 

    If worn, what can cause excessive heat buildup from the reduced ability to absorb from and dissipate heat, possibly leading to loss of brake response?

    • A.

      Brake Hose/ lines

    • B.

      Brake chambers

    • C.

      Brake drum/ linings

    • D.

      All of the above

    Correct Answer
    C. Brake drum/ linings
    Explanation
    Brake drum/linings can cause excessive heat buildup from the reduced ability to absorb from and dissipate heat, possibly leading to loss of brake response. This is because the brake drum and linings are responsible for creating friction to slow down or stop the vehicle. If they become worn, they may not be able to effectively absorb and dissipate heat, resulting in heat buildup. This can lead to a loss of brake response, as the brakes may not be able to effectively slow down or stop the vehicle.

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  • 29. 

    What carries air or hydraulic fluid to the wheel brake assembly?

    • A.

      Brake Hoses/ Lines

    • B.

      Slack Adjusters

    • C.

      Brake Linings

    • D.

      Brake Chambers

    Correct Answer
    A. Brake Hoses/ Lines
    Explanation
    Brake hoses/lines are responsible for carrying air or hydraulic fluid to the wheel brake assembly. They connect the brake assembly to the main brake system and allow for the transmission of pressure or fluid to engage the brakes. Without brake hoses/lines, the brake assembly would not receive the necessary pressure or fluid to function properly, resulting in a loss of braking power.

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  • 30. 

    What are you inspecting by making sure that hoses and lines are not cut, chafed, spliced, worn or not tangled, pinched, or dragging against tractor parts?

    • A.

      Locking Jaws

    • B.

      Doors/tires/lifts

    • C.

      Splash Guards

    • D.

      Air/ Electric lines

    Correct Answer
    D. Air/ Electric lines
    Explanation
    By inspecting the air/electric lines, you are ensuring that they are not cut, chafed, spliced, worn, tangled, pinched, or dragging against tractor parts. This is important for the proper functioning and safety of the vehicle, as damaged or improperly installed air/electric lines can lead to air or electrical system failures, which can cause accidents or breakdowns.

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  • 31. 

    What keeps the vehicle from rolling when parked? 

    • A.

      Brake linings

    • B.

      Parking brake

    • C.

      Locking Pin

    • D.

      Service brake

    Correct Answer
    B. Parking brake
    Explanation
    The parking brake is what keeps the vehicle from rolling when parked. It is a mechanism that locks the wheels in place, preventing any movement. Unlike the service brake, which is used to slow down or stop the vehicle while driving, the parking brake is specifically designed for keeping the vehicle stationary when it is not in use. The brake linings and locking pin are not directly responsible for preventing the vehicle from rolling when parked.

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  • 32. 

    What system Consists of external piping for conducting combustion gases from the engine? 

    • A.

      Heater

    • B.

      Exhaust

    • C.

      Fuel

    • D.

      None of the above

    Correct Answer
    B. Exhaust
    Explanation
    The correct answer is "Exhaust". The exhaust system consists of external piping that conducts combustion gases from the engine. The exhaust system is responsible for removing the waste gases produced during the combustion process and expelling them out of the vehicle. It typically includes components such as the exhaust manifold, catalytic converter, muffler, and tailpipe.

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  • 33. 

    What should you make sure is secured cap are on tight, and has no leaks from the tank or line? 

    • A.

      Fuel tank

    • B.

      Air compressor

    • C.

      Battery/Box

    • D.

      Water Pump

    Correct Answer
    A. Fuel tank
    Explanation
    You should make sure that the fuel tank is secured tightly and has no leaks from the tank or line. This is important to prevent any fuel spills or leaks, which can be dangerous and also result in loss of fuel. It is crucial to ensure that the fuel tank is properly sealed and in good condition to maintain the safety and efficiency of the vehicle or equipment.

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  • 34. 

    To check the coolant level 

    • A.

      You should inspect the reservoir sight of glass

    • B.

      Remove the radiator cap and check the level visibly

    • C.

      Check the dipstick

    • D.

      Either A or B.

    Correct Answer
    D. Either A or B.
    Explanation
    The correct answer is "Either A or B" because both options A and B provide ways to check the coolant level. Option A suggests inspecting the reservoir sight glass, which is a transparent window that allows you to visually check the coolant level. Option B suggests removing the radiator cap and visually checking the level. Both methods are valid ways to determine the coolant level in a vehicle.

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  • 35. 

    What heats the cab and prevents frost from on the windshield?  

    • A.

      Heater/ defroster

    • B.

      Header board

    • C.

      Air conditioner

    • D.

      Wiper/ Washers

    Correct Answer
    A. Heater/ defroster
    Explanation
    The correct answer is "Heater/ defroster." The heater/ defroster is responsible for heating the cab and preventing frost from forming on the windshield. It works by blowing warm air onto the windshield, melting any ice or frost that may have accumulated. This helps to maintain clear visibility for the driver and ensures a safe driving experience.

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  • 36. 

    What should not be damaged, opens and closes properly from the outside and has hinges that are secure with seals intact? 

    • A.

      Doors

    • B.

      Mirrors

    • C.

      Fuel tanks

    • D.

      Splash Guards

    Correct Answer
    A. Doors
    Explanation
    Doors should not be damaged, as they need to open and close properly from the outside. They also have hinges that should be secure, with seals intact. This ensures that the doors provide proper security, protection, and functionality to the vehicle or building they are a part of.

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  • 37. 

    When inspecting doors, Roof Hatches, or that push-out windows are not damaged you are inspecting: 

    • A.

      Lighting Indicators

    • B.

      Emergency Exists

    • C.

      Passenger Lights

    • D.

      Stop arms

    Correct Answer
    B. Emergency Exists
    Explanation
    When inspecting doors, roof hatches, or push-out windows for damage, you are inspecting emergency exits. These are important safety features in case of an emergency, allowing passengers to quickly and safely exit the vehicle. By ensuring that these emergency exits are not damaged, you are ensuring the safety of the passengers in the event of an emergency situation.

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  • 38. 

    What carriers air or hydraulic fluid to the wheel brake assembly/

    • A.

      Brake Hose/ Lines

    • B.

      Brake Chambers

    • C.

      Brake Linings

    • D.

      Slack Adjustors

    Correct Answer
    A. Brake Hose/ Lines
    Explanation
    The brake hose/ lines carry air or hydraulic fluid to the wheel brake assembly. This allows for the proper functioning of the brakes, as the fluid or air pressure is transmitted to the brake chambers, which then actuate the brake linings against the wheel drums or discs. The slack adjustors ensure that there is proper tension in the brake system, but they do not directly carry the fluid or air to the wheel brake assembly. Therefore, the correct answer is Brake Hose/ Lines.

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  • 39. 

     There should be a minimum tread depth of 4/32 of an inch for the:

    • A.

      Steering axle tires

    • B.

      Spare tires

    • C.

      Non-drive axle tires

    • D.

      All of the above

    Correct Answer
    A. Steering axle tires
    Explanation
    The correct answer is steering axle tires. The minimum tread depth of 4/32 of an inch is required for the steering axle tires. This ensures proper traction and stability while steering the vehicle. The tread depth is important for maintaining control and preventing skidding or hydroplaning on wet roads. It is necessary to regularly check and replace tires that do not meet the minimum tread depth requirement to ensure safe driving conditions.

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  • 40. 

    What belt should you make sure is securely mounted, adjusts and latches properly?  

    • A.

      Steering

    • B.

      Water Pump

    • C.

      Air compressor

    • D.

      Safety/Seat

    Correct Answer
    D. Safety/Seat
    Explanation
    The safety/seat belt should be securely mounted, adjustable, and properly latched to ensure the safety of the occupants in a vehicle. It is essential to have a properly functioning seat belt to prevent injuries in the event of a collision or sudden stop.

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  • 41. 

    What maintains air pressure in the air brake system?

    • A.

      Water pump/Helt

    • B.

      Air compressor/ Belt

    • C.

      Alternator/Belt

    • D.

      Power Steering/ Belt

    Correct Answer
    B. Air compressor/ Belt
    Explanation
    The air compressor is responsible for maintaining air pressure in the air brake system. It compresses air and stores it in the system, which is then used to control the brakes. The belt is used to drive the air compressor, ensuring that it is constantly running and supplying the necessary air pressure.

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  • 42. 

    When Checking the dipstick to see that the lubrication level is within safe operation range you are checking the

    • A.

      Oil Level

    • B.

      Coolant Level

    • C.

      Power steering fluid level

    • D.

      None of the above

    Correct Answer
    A. Oil Level
    Explanation
    When checking the dipstick to see that the lubrication level is within the safe operation range, you are specifically checking the oil level. The dipstick is a tool used to measure the amount of oil in the engine. It is important to ensure that the oil level is within the safe range to prevent damage to the engine and ensure proper lubrication. Checking the coolant level, power steering fluid level, or any other fluid level is not relevant in this context.

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  • 43. 

    What is the container for the mechanism that transforms steering column action into wheel action?  

    • A.

      Steering Linkage

    • B.

      Suspension

    • C.

      Steering Play

    • D.

      Steering box/ hoses

    Correct Answer
    D. Steering box/ hoses
    Explanation
    The steering box and hoses are the components responsible for transforming the steering column action into wheel action. The steering box is connected to the steering column and converts the rotational motion of the steering wheel into linear motion, which is then transmitted to the wheels through the hoses. This mechanism allows the driver to control the direction of the vehicle by turning the steering wheel.

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  • 44. 

    What should you test so that they work when corresponding lights are turned on? 

    • A.

      Headlights

    • B.

      Turn Lights

    • C.

      Reflectors

    • D.

      Lighting indicators

    Correct Answer
    D. Lighting indicators
    Explanation
    To ensure that the lights work when the corresponding lights are turned on, it is important to test the lighting indicators. Lighting indicators are specifically designed to indicate whether the lights are functioning properly. By testing the lighting indicators, one can determine if the headlights, turn lights, and reflectors are working correctly when activated. This ensures that all the necessary lights are functioning as intended, providing safety and visibility while driving.

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  • 45. 

    What are you inspecting by making sure that the hoses and lines are not cut, chafed, spliced, worn and not tangled, pinched or dragging against tractor parts?    

    • A.

      Air/electirc lines

    • B.

      Locking jaws

    • C.

      Splash guards

    • D.

      Doors/ties/lifts

    Correct Answer
    A. Air/electirc lines
    Explanation
    By inspecting the hoses and lines for cuts, chafing, splicing, and wear, as well as ensuring they are not tangled, pinched, or dragging against tractor parts, you are checking the condition and proper functioning of the air/electric lines. These lines are crucial for the operation of various systems in the tractor, such as the brakes, suspension, and electrical components. Any damage or improper positioning of the lines can lead to malfunctions or failures, compromising the safety and performance of the tractor.

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  • 46. 

    What gauge indicates the alternator and or generator is charging?   

    • A.

      Temperature

    • B.

      Oil pressure

    • C.

      Ammeter/ Voltmeter

    • D.

      None of the above

    Correct Answer
    C. Ammeter/ Voltmeter
    Explanation
    The ammeter/voltmeter gauge indicates whether the alternator and/or generator is charging. This gauge measures the electrical current or voltage being produced by the alternator or generator, and if it shows a positive reading, it means that the charging system is functioning properly. The temperature and oil pressure gauges are unrelated to the charging system and do not indicate whether the alternator or generator is charging. Therefore, the correct answer is the ammeter/voltmeter gauge.

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  • 47. 

    What should fully be raised,have no missing parts,crank handles secured and the support frame not damaged? 

    • A.

      Cargo lift

    • B.

      Landing gear

    • C.

      Stop arm

    • D.

      Tandem Release arm

    Correct Answer
    B. Landing gear
    Explanation
    The landing gear of a vehicle or aircraft should be fully raised, have no missing parts, crank handles secured, and the support frame should not be damaged. This ensures the proper functioning and safety of the landing gear system during takeoff, landing, and ground operations.

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  • 48. 

    What should be secured and checked so that the connections are tight, the cell caps are present and there is no excessive corrosion? 

    • A.

      Fuel tank

    • B.

      Axle seals

    • C.

      Air/electric lines

    • D.

      Battery Box

    Correct Answer
    D. Battery Box
    Explanation
    The battery box should be secured and checked to ensure that the connections are tight, the cell caps are present, and there is no excessive corrosion. This is important because a loose connection can result in a loss of power or electrical issues, while missing cell caps can lead to acid leakage and damage to the battery. Excessive corrosion can also cause poor electrical conductivity and reduce the battery's performance. Therefore, regularly securing and checking the battery box is crucial for maintaining the battery's functionality and preventing potential issues.

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  • 49. 

    Inspect the following to see that the frames are not broken, firmly attached to the floor and that the cushions  are attached securely to the frames.

    • A.

      Emergency Equipment

    • B.

      Lighting Indicators

    • C.

      Seats

    • D.

      None of the above

    Correct Answer
    C. Seats
    Explanation
    The given correct answer is "Seats". The explanation for this answer is that the sentence states to inspect the frames to see that they are not broken and firmly attached to the floor, and also to check that the cushions are securely attached to the frames. The other options listed (Emergency Equipment, Lighting Indicators) do not pertain to the inspection of frames, cushions, or attachment to the floor, making them incorrect answers.

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  • 50. 

    The angle between the push rod and the adjustor arm should be a little over 90 degrees when the brakes are released, and not less than 90 degrees when the brakes are applied refers to the

    • A.

      Slack Adjuster

    • B.

      Brake Linings

    • C.

      Shock absorbers

    • D.

      Brake Chambers

    Correct Answer
    A. Slack Adjuster
    Explanation
    The given statement suggests that the angle between the push rod and the adjustor arm should be slightly more than 90 degrees when the brakes are not engaged, and should not be less than 90 degrees when the brakes are applied. This indicates that the statement is referring to the slack adjuster, which is responsible for adjusting the distance between the brake shoes and the drum in order to maintain proper braking performance.

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