CDL Practice Tests: Pre-Trip Inspection
Choose A Section:
Go!During the pre-trip inspection test you must:
- Explain to the examiner what you are checking and why
- Show that the vehicle is safe to drive
- All these are correct
- Walk around the vehicle and point to or touch each item
When doing a pre-trip inspection of the power steering, play in the steering wheel should not exceed how much?
- 20 degrees (or about 4 inches on a 20-inch wheel) before the front left wheel barely moves.
- There should be zero degrees of play in the steering wheel
- 30 degrees (or about 6 inches on a 20-inch wheel) before the front left wheel barely moves.
- 10 degrees (or about 2 inches on a 20-inch wheel) before the front left wheel barely moves.
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
When doing an emergency system check on air brake systems, how do you begin the test?
- Turn electrical power off and begin fanning off the air pressure by rapidly applying and releasing the foot brake
- Turn off the electrical power and begin fanning off the air pressure by pulling out the red parking brake knob
- Turn the engine on and begin fanning off the air pressure by rapidly applying and releasing the foot brake
- Turn electrical power on and begin fanning off the air pressure by rapidly applying and releasing the foot brake
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
When inspecting the air and electrical connections to the trailer, which of the following items does NOT need to be checked?
- Make sure glad hands are locked in place, free of damage and oil/grease that can cause air leaks.
- Make sure the brake fluid lines are properly attached and not leaking
- Make sure the trailer electrical plug is firmly seated and locked in place.
- Check that trailer air connectors are sealed and in good condition.
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.
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
- A basic tool kit
- Three red reflective triangles, six fuses or three liquid burning flares.
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.
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
- Hold the brake pedal down. Make sure the pedal slowly moves all the way to the floor within 10 seconds
- 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.
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.
- Alternately flashing amber lights indicator, if equipped.
- All these are correct
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 air brake system leak check, how long do you hold the pedal and what do you check for?
- Hold the pedal for 10 seconds. Check the air gauge to see if the air pressure drops more than 3 pounds in one minute (single vehicle) or 4 pounds in one minute (combination vehicle)
- Hold the pedal for one minute. Check the air gauge to see if the air pressure drops more than 3 pounds in one minute (single vehicle) or 4 pounds in one minute (combination vehicle)
- Hold the pedal for two minutes. Check the air gauge to see if the air pressure drops more than 1 pound in one minute (single vehicle) or 2 pounds in one minute (combination vehicle)
- Hold the pedal for one minute. Check the air gauge to see if the air pressure drops more than 6 pounds in one minute (single vehicle) or 8 pounds in one minute (combination vehicle)
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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