CDL Practice Tests: Pre-Trip Inspection
Choose A Section:
Go!Describe the proper service brake check:
- 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
- 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
- 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.
When doing a pre-trip inspection of the engine compartment, which of the following are you NOT looking for?
- Look for dripping fluids on the underside of the engine and transmission.
- Look for puddles on the ground.
- Make sure the air lines are properly attached to the trailer
- Inspect hoses for condition and leaks.
Engine Compartment (Engine Off) Leaks/Hoses
- Look for puddles on the ground.
- Look for dripping fluids on underside of engine and transmission.
- Inspect hoses for condition and leaks.
What do you check for with the safety belt during a pre-trip inspection?
- All these are correct
- The belt is securely mounted
- The belt adjusts and latches properly
- The belt is not ripped or frayed
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
- Explain to the examiner what you are checking and why
- All these are correct
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 checking the suspension components, what should you check for?
- All these are correct
- Look for broken or distorted coil springs.
- Look for missing, shifted, cracked or broken leaf springs.
- Air ride suspension should be checked for damage and leaks.
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.
For manual slack adjustors, the brake pushrod should not move more than _________ (with the brakes released) when pulled by hand.
- 1 inch
- 2 inches
- 6 inches
- 1 foot
What should you check for when checking the landing gear on the trailer?
- Check that the landing gear is fully raised
- All of these are correct
- Make sure there are no missing parts
- Make sure the crank handle is secured and the support frame is not damaged
Which is the proper procedure for checking the trailer parking brakes?
- 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
- Measure the distance between the parking brake shoe and the drum. Make sure it is less than 1 inch
When checking the steering box components under the hood, what should you check for?
- Check for power steering fluid leaks or damage to power steering hoses
- All these are correct
- Check that the steering box is securely mounted and not leaking
- Look for any missing nuts, bolts and cotter keys
Steering Box/Hoses
- Check that the steering box is securely mounted and not leaking. Look for any missing nuts, bolts and cotter keys.
- Check for power steering fluid leaks or damage to power steering hoses.
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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