CDL Practice Tests: Pre-Trip Inspection
Choose A Section:
Go!When inspecting the air and electrical connections to the trailer, which of the following items does NOT need to be checked?
- Check that trailer air connectors are sealed and in good condition.
- Make sure glad hands are locked in place, free of damage and oil/grease that can cause air leaks.
- Make sure the trailer electrical plug is firmly seated and locked in place.
- Make sure the brake fluid lines are properly attached and not leaking
Air/Electrical Connections
- Check that trailer air connectors are sealed and in good condition.
- Make sure glad hands are locked in place, free of damage and oil/grease that can cause air leaks.
- Make sure the trailer electrical plug is firmly seated and locked in place.
During the pre-trip inspection test you must:
- Show that the vehicle is safe to drive
- Explain to the examiner what you are checking and why
- Walk around the vehicle and point to or touch each item
- All these are correct
When checking the suspension components, what should you check for?
- Air ride suspension should be checked for damage and leaks.
- Look for missing, shifted, cracked or broken leaf springs.
- All these are correct
- 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 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?
- 80 psi
- 100 psi
- 140 psi
- 60 psi
When doing a pre-trip inspection, how much of a gap should there be between the 5th wheel and the trailer?
- No less than 2 inches
- 1 inch
- No gap
- 1/4 inch
What are two indications of loose lug nuts?
- Twisted or bent valve stem and over-inflated tires
- All these are correct
- Low hub oil level or brakes squeaking
- Rusty trails or shiny threads
When doing a pre-trip inspection of the engine compartment, which of the following are you NOT looking for?
- Make sure the air lines are properly attached to the trailer
- Look for puddles on the ground.
- Look for dripping fluids on the underside of the engine and transmission.
- 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.
Which is the proper procedure for checking hydraulic brakes?
- All these are correct
- Pump the brake three times and watch the hydraulic pressure gauge to make sure it's building pressure
- 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.
- Hold the brake pedal down. Make sure the pedal slowly moves all the way to the floor within 10 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 the crank handle is secured and the support frame is not damaged
- Check that the landing gear is fully raised
- Make sure there are no missing parts
- All of these are correct
Which of the following is NOT one of the dash indicators you will look for during your pre-trip inspection?
- Air lines reversed indicator
- Antilock Braking System (ABS) indicator
- Left turn signal indicator
- Four-way emergency flashers
Test that dash indicators work when corresponding lights are turned on:
- Left turn signal
- Right turn signal.
- Four way emergency flashers.
- High-beam headlight.
- Antilock Braking System (ABS) indicator.
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.
Why Join Trucking Truth?
- The High Road Training Program
- The High Road Article Series
- The Friendliest Trucker's Forum Ever!
- Email Updates When New Articles Are Posted
Apply For Paid CDL Training Through TruckingTruth
Did you know you can fill out one quick form here on TruckingTruth and apply to several companies at once for paid CDL training? Seriously! The application only takes one minute. You will speak with recruiters today. There is no obligation whatsoever. Learn more and apply here:
TT On Facebook