STATE BRAKE CERTIFICATION questions
and answers 2025\2026 A+ Grade
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
The rear brakes are dragging after having new linings installed and the drums machined. the most likely
cause is the:
- correct answer technician use the parking brake to adjust shoes and the cable is stuck
While test driving a car, the mechanic finds that the right front brake "grabs". The most likely cause of
this problem is:
- correct answer brake fluid or grease on the brake linings
Which of the following incorrect service procedures will cause brake lock-up?
- correct answer master cylinder push rod adjusted too long
Which of the following incorrect service procedures could cause brake pedal pulsation?
- correct answer incorrect run-out on the car brake lathe
A common cause of pedal pulsation during brake application is:
- correct answer NOT caused by improperly torqued wheels, damaged backing plates, or lubricated
shims
and answers 2025\2026 A+ Grade
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
The rear brakes are dragging after having new linings installed and the drums machined. the most likely
cause is the:
- correct answer technician use the parking brake to adjust shoes and the cable is stuck
While test driving a car, the mechanic finds that the right front brake "grabs". The most likely cause of
this problem is:
- correct answer brake fluid or grease on the brake linings
Which of the following incorrect service procedures will cause brake lock-up?
- correct answer master cylinder push rod adjusted too long
Which of the following incorrect service procedures could cause brake pedal pulsation?
- correct answer incorrect run-out on the car brake lathe
A common cause of pedal pulsation during brake application is:
- correct answer NOT caused by improperly torqued wheels, damaged backing plates, or lubricated
shims
