Commercial Driver's License (CDL) Vehicle Maintenance and Safety Quiz

Test your knowledge on commercial vehicle maintenance with these 11 essential questions. Get prepared for your CDL exam!

Practice Learn Test

Which of the following should a commercial driver inspect before starting a trip?

Only the tires

Only the brakes

The vehicle's interior

The vehicle's exterior and engine compartment

What should a driver check for during a pre-trip inspection of tires?

Tread wear and proper inflation

Only tire pressure

Only tire tread depth

Wheel alignment

What should a driver do if they notice an unusual noise or vibration while driving?

Ignore it and continue driving

Pull over as soon as it's safe to do so and inspect the vehicle

Increase speed to see if it goes away

Turn up the radio to drown out the noise

What is the purpose of the emergency equipment required on commercial vehicles?

To add weight to the vehicle

To comply with regulations

To enhance the vehicle's appearance

To use in case of an emergency or breakdown

What does the term 'GVWR' stand for in relation to commercial vehicles?

Gross Vehicle Weight Ratio

Gross Vehicle Weight Reduction

Gross Vehicle Weight Rating

Gross Vehicle Weight Report

What should a CDL driver inspect when checking the engine compartment during a pre-trip inspection?

Only the battery

Only the oil level

All fluid levels, hoses, belts, and leaks

Only the radiator

During a pre-trip inspection, what is the purpose of checking the brake system?

To ensure the brakes make no noise

To make sure the brakes are clean

To verify the brake pedal pressure and air loss

To inspect the brake lights

Which of the following is NOT a required item to inspect during a pre-trip inspection of the vehicle's exterior?

Lights and reflectors

Windshield wipers

Mirrors

Trailer hitch

Which of the following is a potential hazard of driving with worn-out tires?

Better fuel efficiency

Increased traction

Decreased stopping distance

Blowouts or loss of control

#10

During a pre-trip inspection, what should a driver check when examining the suspension system?

Only the shock absorbers

Only the tire pressure

The entire suspension system for damage or signs of wear

The radio

#11

What should a driver do if they discover a safety issue during the pre-trip inspection?

Wait until the next inspection

Report it and not drive until it's fixed

Ignore it if it's minor

Try to fix it themselves