CDL Practice Tests: Pre-Trip Inspection
Choose A Section:
Go!Which is the proper procedure for checking the trailer parking brakes?
- Check the angle of the S-cam coming out of the brake chamber
- Measure the distance between the parking brake shoe and the drum. Make sure it is less than 1 inch
- All these are correct
- Gently trying to pull forward with the trailer parking brake on
In addition to checking the lighting indicators listed in Section 10.2 of this manual, school bus drivers must also check which of the following lighting indicators:
- Alternately flashing red lights indicator.
- Strobe light indicator, if equipped.
- All these are correct
- Alternately flashing amber lights indicator, if equipped.
In addition to checking the lighting indicators listed in Section 10.2 of this manual, school bus drivers must also check the following lighting indicators (internal panel lights):
- Alternately flashing amber lights indicator, if equipped.
- Alternately flashing red lights indicator.
- Strobe light indicator, if equipped.
When doing an emergency system check on air brake systems, the low air warning device (buzzer, light, other) should activate when the pressure gets below what reading?
- 100 psi
- 80 psi
- 140 psi
- 60 psi
When doing a pre-trip inspection of the power steering, play in the steering wheel should not exceed how much?
- There should be zero degrees of play in the steering wheel
- 10 degrees (or about 2 inches on a 20-inch wheel) before the front left wheel barely moves.
- 20 degrees (or about 4 inches on a 20-inch wheel) before the front left wheel barely moves.
- 30 degrees (or about 6 inches on a 20-inch wheel) before the front left wheel barely moves.
When checking the suspension components, what should you check for?
- All these are correct
- Look for missing, shifted, cracked or broken leaf springs.
- Air ride suspension should be checked for damage and leaks.
- Look for broken or distorted coil springs.
Suspension Springs/Air/Torque
- Look for missing, shifted, cracked or broken leaf springs.
- Look for broken or distorted coil springs.
- If vehicle is equipped with torsion bars, torque arms or other types of suspension components, check that they are not damaged and are mounted securely.
- Air ride suspension should be checked for damage and leaks.
When doing a pre-trip inspection, how much of a gap should there be between the 5th wheel and the trailer?
- No gap
- 1 inch
- No less than 2 inches
- 1/4 inch
Re-grooved or re-capped tires are not permitted on:
- Any tires
- Drive tires
- Trailer 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.
During the pre-trip inspection test you must:
- All these are correct
- Show that the vehicle is safe to drive
- Walk around the vehicle and point to or touch each item
- Explain to the examiner what you are checking and why
What should you check for when checking the landing gear on the trailer?
- Make sure there are no missing parts
- Check that the landing gear is fully raised
- All of these are correct
- Make sure the crank handle is secured and the support frame is not damaged
What should you check for on the tires during a pre-trip inspection?
- All these are correct
- 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
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.
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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