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Brake System Certification Questions and Answers, Quizzes of Mechanical Engineering

A collection of multiple-choice questions and answers related to brake systems, covering various aspects of brake operation, maintenance, and troubleshooting. It is designed to help individuals preparing for brake system certification exams or seeking to enhance their knowledge of brake systems.

Typology: Quizzes

2024/2025

Available from 02/05/2025

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STATE BRAKE CERTIFICATION QUESTIONS WITH 100%
VERIFIED ANSWERS EXAM REVIEW RATED A+
"On a 3-channel system, which wheels are on the same circuit? - CORRECT ANSWER=> both rear
wheels"
"There is a scraping sound coming from one rear brake. The sound stops when the brakes are applied.
What is most likely the cause of the problem? - CORRECT ANSWER=> a broken shoe hold-down spring
or pin"
"If a drum brake self-adjuster seizes up, the likely result will be: - CORRECT ANSWER=> NOT a low
pedal, worn or brake drum, or a loose emergency brake cable."
"After drum brakes have been applied and released, the brake fluid returns to the master cylinder
reservoir. What causes it to return? - CORRECT ANSWER=> brake shoe return springs"
"On a single anchor duo-servo drum brake system, which shoe does most of the braking? - CORRECT
ANSWER=> secondary shoe"
"When turning brake drums: - CORRECT ANSWER=> use a dampening strap to reduce chatter"
"Which of the following is NOT a necessary drum brake measurement? - CORRECT ANSWER=> run-
out"
"You are installing a set of brake shoe linings that are not the same length. Traditionally, the primary
shoe lining is: - CORRECT ANSWER=> Smaller and goes towards the front of the car."
"the car is at reset. When you slowly apply the brake pedal you hear a squeaking noise at the rear of the
vehicle. what could cause this noise? - CORRECT ANSWER=> dry backing plate contact surfaces"
"Upon inspecting brake fluid condition, the technician observes the diaphragm in the master cylinder
cup is swollen. Which of the following is the most likely cause? - CORRECT ANSWER=> silicone fluid
added to the system"
"When inspecting brake fluid levels, a technician observes low fluid levels. which of the following should
be done first? - CORRECT ANSWER=> Inspect disc brake pads for excessive wear"
"During a road test, you find that when normal braking pressure is applied the pedal slowly goes to the
floor. what is the most likely cause of this problem? - CORRECT ANSWER=> a leaking master cylinder
primary piston seal"
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Download Brake System Certification Questions and Answers and more Quizzes Mechanical Engineering in PDF only on Docsity!

STATE BRAKE CERTIFICATION QUESTIONS WITH 100%

VERIFIED ANSWERS EXAM REVIEW RATED A+

"On a 3-channel system, which wheels are on the same circuit? - CORRECT ANSWER=> both rear

wheels" "There is a scraping sound coming from one rear brake. The sound stops when the brakes are applied.

What is most likely the cause of the problem? - CORRECT ANSWER=> a broken shoe hold-down spring

or pin"

"If a drum brake self-adjuster seizes up, the likely result will be: - CORRECT ANSWER=> NOT a low

pedal, worn or brake drum, or a loose emergency brake cable." "After drum brakes have been applied and released, the brake fluid returns to the master cylinder

reservoir. What causes it to return? - CORRECT ANSWER=> brake shoe return springs"

"On a single anchor duo-servo drum brake system, which shoe does most of the braking? - CORRECT

ANSWER=> secondary shoe"

"When turning brake drums: - CORRECT ANSWER=> use a dampening strap to reduce chatter"

"Which of the following is NOT a necessary drum brake measurement? - CORRECT ANSWER=> run-

out" "You are installing a set of brake shoe linings that are not the same length. Traditionally, the primary

shoe lining is: - CORRECT ANSWER=> Smaller and goes towards the front of the car."

"the car is at reset. When you slowly apply the brake pedal you hear a squeaking noise at the rear of the

vehicle. what could cause this noise? - CORRECT ANSWER=> dry backing plate contact surfaces"

"Upon inspecting brake fluid condition, the technician observes the diaphragm in the master cylinder

cup is swollen. Which of the following is the most likely cause? - CORRECT ANSWER=> silicone fluid

added to the system" "When inspecting brake fluid levels, a technician observes low fluid levels. which of the following should

be done first? - CORRECT ANSWER=> Inspect disc brake pads for excessive wear"

"During a road test, you find that when normal braking pressure is applied the pedal slowly goes to the

floor. what is the most likely cause of this problem? - CORRECT ANSWER=> a leaking master cylinder

primary piston seal"

"Wheel speed sensors: - CORRECT ANSWER=> send an A/C signal to the control module"

"Before replacing a hydralic brake hose on an ABS equipped vehicle, you should first: - CORRECT

ANSWER=> relieve brake system pressure according to manufacturer procedures"

"When would the pump motor be activated in an anti-lcok brake system with traction assist? - CORRECT

ANSWER=> when brake pedal pulsates"

"Which of the following is true about bleeding brake lines on most ABS equipped vehicles? - CORRECT

ANSWER=> Most ABS brake lines can be bled like a conventional (non-ABS) system. However, caution

must be taken because of the extreme pressure."

"Flexible brake hoses should be replaced: - CORRECT ANSWER=> when dampness is evident on the

hose"

"Most anti-lock brake systems require the removal of the pressure modulator fuse when: - CORRECT

ANSWER=> a "spaced-saver" spare tire is being used and mismatched tires are being installed"

"ABS speed sensor and sensor rings: - CORRECT ANSWER=> should not be hammered or tapped on

and should always be replaced as a matched set"

"One way to test an ABS wheel speed signal is to use _____ on your digital multimeter. - CORRECT

ANSWER=> AC volts"

"The key input for the ABS control module comes from the: - CORRECT ANSWER=> wheel speed

sensors"

"Which one of the following describes the proper way to depressurize an ABS system? - CORRECT

ANSWER=> pump the brake pedal at least 25 times or more, depending on the manufacturer's

recommendation, with the ignition on, but engine not running."

“A cracked or torn vacuum diaphragm in a brake power booster would most likely cause: - CORRECT

ANSWER=> a hard pedal feel requiring very high pedal effort to stop"

"to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4 times,

hold the brake pedal depressed, and start the engine. the brake pedal should: - CORRECT ANSWER=>

drop slightly and remain firm" "A mechanic finds gear lube inside both rear drums on a rear wheel drive vehicle. What is most likely the

cause of this problem? - CORRECT ANSWER=> a plugged axle"