CDL Practice Tests: Pre-Trip Inspection

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Question #502 (1 of 10)

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During the pre-trip inspection test you must:

  • Explain to the examiner what you are checking and why
  • All these are correct
  • Show that the vehicle is safe to drive
  • Walk around the vehicle and point to or touch each item
During the pre-trip inspection, you must show that the vehicle is safe to drive. You may have to walk around the vehicle and point to or touch each item and explain to the examiner what you are checking and why. At the time of your test, the examiner will direct you to the areas of the vehicle to inspect for the test. In addition to this section, you should also review Section 2 prior to conducting the pre-trip inspection.
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Question #522 (2 of 10)

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What should you check for on the tires during a pre-trip inspection?

  • Make sure that valve caps and stems are not missing, broken or damaged.
  • Look for cuts or other damage to tread or sidewalls
  • Check that tread is evenly worn
  • All these are correct

The following items must be inspected on every tire:

  • Tread depth: Check for minimum tread depth (4/32 on steering axle tires and 2/32 on all other tires).
  • Tire condition: Check that tread is evenly worn and look for cuts or other damage to tread or sidewalls. Also, make sure that valve caps and stems are not missing, broken or damaged.
  • Tire inflation: Check for proper inflation by using a tire gauge or a mallet. Note: You will not get credit if you simply kick the tires to check for proper inflation.
  • That there is no mismatch tires (size and construction).
  • Re-grooved or re-capped tires are not permitted on bus steer tires.
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Question #505 (3 of 10)

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When doing a pre-trip inspection, which of the following is NOT one of the required pieces of emergency equipment you must have?

  • Spare electrical fuses, unless circuit breaker equipped vehicle.
  • A properly charged and rated fire extinguisher
  • Three red reflective triangles, six fuses or three liquid burning flares.
  • A basic tool kit

Emergency Equipment

  • Check for spare electrical fuses, unless circuit breaker equipped vehicle.
  • Check for three red reflective triangles, six fuses or three liquid burning flares.
  • Check for a properly charged and rated fire extinguisher.
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Question #527 (4 of 10)

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In addition to checking for spare electrical fuses (if equipped), three red reflective triangles and a properly charged and rated fire extinguisher, school bus drivers must also inspect which of the following emergency equipment?

  • Tool kit and tire patching kit
  • Emergency flares and flashlight
  • None of these are correct
  • First aid kit and body fluid cleanup kit

In addition to checking for spare electrical fuses (if equipped), three red reflective triangles and a properly charged and rated fire extinguisher, school bus drivers must also inspect the following emergency equipment:

  • First Aid Emergency Kit
  • Body Fluid Cleanup Kit
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Question #504 (5 of 10)

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Which of the following is NOT one of the belts you will check during a pre-trip inspection of the engine compartment?

  • Alternator belt
  • Water pump belt
  • Power steering belt
  • Camshaft belt

Check the following belts for snugness (up to 1/4-inch play at center of belt), cracks or frays:

  • Power steering belt.
  • Water pump belt.
  • Alternator belt.
  • Air compressor belt.
The camshaft is inside the engine and does not have a belt you can see or check.
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Question #523 (6 of 10)

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Re-grooved or re-capped tires are not permitted on:

  • Any tires
  • Trailer tires
  • Drive tires
  • Steer tires

The following items must be inspected on every tire:

  • Tread depth: Check for minimum tread depth (4/32 on steering axle tires and 2/32 on all other tires).
  • Tire condition: Check that tread is evenly worn and look for cuts or other damage to tread or sidewalls. Also, make sure that valve caps and stems are not missing, broken or damaged.
  • Tire inflation: Check for proper inflation by using a tire gauge or a mallet. Note: You will not get credit if you simply kick the tires to check for proper inflation.
  • That there is no mismatch tires (size and construction).
  • Re-grooved or re-capped tires are not permitted on bus steer tires.
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Question #515 (7 of 10)

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Describe the proper service brake check:

  • Pull forward at 5 mph, apply the emergency brake and stop. Check to see that the vehicle does not pull to either side and that it stops when the emergency brake is applied
  • While sitting still, release the parking brake and pump the service brake 5 times, then release it. Make sure the pressure does not drop more than 3 psi in one minute
  • Pull forward at 5 mph, apply the service brake and stop. Check to see that the vehicle does not pull to either side and that it stops when the brake is applied
  • All of these are correct

Service Brake Check

  • You will be required to check the application of air or hydraulic service brakes. This procedure is designed to determine that the brakes are working correctly and that the vehicle does not pull to one side or the other.
  • Pull forward at 5 mph, apply the service brake and stop. Check to see that the vehicle does not pull to either side and that it stops when the brake is applied.
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Question #530 (8 of 10)

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What should you check for when checking the landing gear on the trailer?

  • Make sure the crank handle is secured and the support frame is not damaged
  • Make sure there are no missing parts
  • All of these are correct
  • Check that the landing gear is fully raised
Check that the landing gear is fully raised, has no missing parts, crank handle is secure and the support frame is not damaged.
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Question #526 (9 of 10)

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When doing a pre-trip inspection, how much of a gap should there be between the 5th wheel and the trailer?

  • 1 inch
  • No gap
  • No less than 2 inches
  • 1/4 inch
Make sure there is no gap between the fifth-wheel and trailer, and check that locking jaws are fully closed around the kingpin.
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Question #521 (10 of 10)

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What is the minimum tire tread depth allowed during a pre-trip inspection?

  • 4/32 on steering axle tires and 2/32 on all other tires
  • 4/32 on trailer axle tires and 2/32 on all other tires
  • 4/32 on drive axle tires and 2/32 on all other tires
  • 2/32 on steering axle tires and 4/32 on all other tires

The following items must be inspected on every tire:

  • Tread depth: Check for minimum tread depth (4/32 on steering axle tires and 2/32 on all other tires).
  • Tire condition: Check that tread is evenly worn and look for cuts or other damage to tread or sidewalls. Also, make sure that valve caps and stems are not missing, broken or damaged.
  • Tire inflation: Check for proper inflation by using a tire gauge or a mallet. Note: You will not get credit if you simply kick the tires to check for proper inflation.
  • That there is no mismatch tires (size and construction).
  • Re-grooved or re-capped tires are not permitted on bus steer tires.
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About The Pre-Trip Inspectin CDL Exam

The The Pre-Trip Inspectin portion of the CDL Exam is required to obtain your CDL. During the pre-trip inspection, you must show that the vehicle is safe to drive. You may have to walk around the vehicle and point to or touch each item and explain to the examiner what you are checking and why. You will NOT have to crawl under the hood or under the vehicle.

Drivers need to have knowledge of how the actual vehicle(s) that they are conducting the test in operate. The drivers need to be able to explain and demonstrate different checks for the examiner as requested.

Taking the CDL Pre-trip Inspection Test

Class A Pre-trip Inspection Test

If you are applying for a Class A CDL, you will be required to perform a pre-trip inspection in the vehicle you have brought with you for testing. The vehicle must be a combination vehicle, representative of the unit you will be driving and must meet the class weight requirements. If the vehicle is an air brake vehicle, you must first pass the air brake knowledge test. You also must have passed all applicable endorsement knowledge tests that pertain to the vehicle you bring in for testing. Your test will require an inspection of the areas of the vehicle as instructed by your CDL examiner.

Class B and C Pre-trip Inspection Test

If you are applying for a Class B or C CDL, you will be required to perform a pre-trip inspection in the vehicle you have brought with you for testing. The vehicle must be a straight truck, passenger bus or school bus, representative of the vehicle you will be driving and must meet the class weight requirements. If the vehicle is an air brake vehicle, you must first pass the air brake knowledge test. You also must have passed all applicable endorsement knowledge tests that pertain to the vehicle you bring in for testing. Your test will require an inspection of the areas of the vehicle as instructed by your CDL examiner.

TruckingTruth's Pre-Trip Inspection Study Guide

We have an excellent Pre-trip Inspection Study Guide which includes a complete pre-trip inspection with photos and descriptions, numerous pre-trip inspection videos, and a complete vehicle checklist.

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