CDL Practice Tests: Pre-Trip Inspection
Choose A Section:
Go!Which of the following is NOT one of the belts you will check during a pre-trip inspection of the engine compartment?
- Camshaft belt
- Alternator belt
- Water pump belt
- Power steering 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.
When doing an emergency system check on air brake systems, the tractor parking valve and the trailer parking valve should close (pop out) when the pressure gets below what reading?
- 60-80 psi
- 10-30 psi
- 20-45 psi
- 80 - 100 psi
During the pre-trip inspection test you must:
- Show that the vehicle is safe to drive
- Walk around the vehicle and point to or touch each item
- All these are correct
- Explain to the examiner what you are checking and why
Which is the proper procedure for checking hydraulic brakes?
- Pump the brake three times and watch the hydraulic pressure gauge to make sure it's building pressure
- Hold the brake pedal down. Make sure the pedal slowly moves all the way to the floor within 10 seconds
- All these are correct
- Pump the brake pedal three times and then hold it down for five seconds. The brake pedal should not move (depress) during the five seconds.
Hydraulic Brake Check (if equipped)
- Pump the brake pedal three times and then hold it down for five seconds. The brake pedal should not move (depress) during the five seconds.
- If equipped with a hydraulic brake reserve (back-up) system, with the key off, depress the brake pedal and listen for the sound of the reserve system electric motor.
- Check that the warning buzzer or light is off.
What should you check for when checking the landing gear on the trailer?
- Make sure there are no missing parts
- Make sure the crank handle is secured and the support frame is not damaged
- Check that the landing gear is fully raised
- All of these are correct
What do you check for with the safety belt during a pre-trip inspection?
- The belt is not ripped or frayed
- The belt adjusts and latches properly
- All these are correct
- The belt is securely mounted
Which is the proper procedure for checking the trailer parking brakes?
- 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
- Check the angle of the S-cam coming out of the brake chamber
What is the minimum tire tread depth allowed during a pre-trip inspection?
- 2/32 on steering axle tires and 4/32 on all other tires
- 4/32 on drive 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 steering axle tires and 2/32 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.
When inspecting a passenger bus, which of the following must be checked when inspecting emergency exits?
- Make sure emergency exits are not damaged
- All these are correct
- Make sure the emergency exits operate smoothly and close securely from the inside
- Check that any emergency exit warning devices are working.
Emergency Exits
- Make sure that all emergency exits are not damaged, operate smoothly and close securely from the inside.
- Check that any emergency exit warning devices are working.
What should you check for on the tires during a pre-trip inspection?
- Check that tread is evenly worn
- 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
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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