NEWEST EXAM QUESTIONS AND
CORRECT ANSWERS LATEST
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, 1. A cracked or torn vacuum diaphragm in a brake power booster would most likely cause ☑correct answer ☑correct
answer a hard pedal feel requiring very high pedal ettort to stop
2. 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 ☑correct answer drop slightly and
remain firm
3. 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
4. The rear brakes are dragging after having new linings installed and the drums machined. the most likely cause is the ☑
correct answer ☑correct answer technician use the parking brake to adjust shoes and the cable is stuck
5. While test driving a car, the mechanic finds that the right front brake "grabs". The most likely cause of this problem is ☑
correct answer ☑correct answer brake fluid or grease on the brake linings
6. Which of the following incorrect service procedures will cause brake lock-up?-
☑correct answer master cylinder push rod adjusted too long
7. Which of the following incorrect service procedures could cause brake pedal pulsation? ☑correct answer incorrect run-out
on the car brake lathe
8. A common cause of pedal pulsation during brake application is ☑correct answer ☑correct answer NOT caused by
improperly torqued wheels, damaged backing plates, or lubricated shims
9. A properly functioning load sensing proportioning valve will ☑correct answer ☑correct answer cause an increase in
the hydraulic pressure during braking at the rear wheel cylinders when the vehicle is loaded.
10. which of the following is a quick way to isolated a defective master cylinder? There are no external leaks in the
system. ☑correct answer pump up the brake pedal, then hold it firm. if the pedal slowly drops to the floor, the master cylinder may be defective.
11. After rebuilding a master cylinder, the rod between the master cylinder and booster should be ☑correct answer ☑
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