2026 Utah Air Brakes CDL Practice Test 1

Question 1

Oil and water usually collect in compressed air tanks. If you do not have an automatic tank drain, when should you drain the air tanks?

After every four hours of service. After every working day. Once a week.

Correct Answer:

After every working day.

Question 2

What is the S-cam used for?

To release the brakes. To test the slack adjusters. To apply the brakes.

Correct Answer:

To apply the brakes.

Question 3

Which of the following makes the total stopping distance for air brakes longer than that for hydraulic brakes?

Perception distance. Reaction distance. Brake lag distance.

Correct Answer:

Brake lag distance.

Question 4

The brake system that applies and releases the brakes when the driver uses the brake pedal is the:

Emergency brake system. Service brake system. Parking brake system.

Correct Answer:

Service brake system.

Question 5

To make an emergency stop with air brakes, using the stab braking method, you should:

Pump the brake pedal rapidly and lightly. Brake as hard as you can, get off the brakes when the wheels lock, get back on the brakes when the wheels start rolling again. Brake hard until the wheels lock, and then get off the brakes for as much time as the wheels were locked.

Correct Answer:

Brake as hard as you can, get off the brakes when the wheels lock, get back on the brakes when the wheels start rolling again.

Question 1 of 25

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About this Exam

Prepare with the 2026 Utah Air Brakes CDL Practice Test 1 practice quiz. This question bank includes 25 questions covering brakes, brake, tanks, vehicle, and braking. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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2026 Utah Air Brakes CDL Practice Test 1

This practice set contains 25 questions from the matching question bank and focuses on brakes, brake, tanks, vehicle, and braking. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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2026 Utah Air Brakes CDL Practice Test 1

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