2025/2026 EXAM QUESTIONS AND
ANSWERS | 100% PASS
A cracked or torn vacuum diaphragm in a brake power booster would most likely
cause: - 🧠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: - 🧠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? - 🧠ANSWER ✔✔a plugged axle
The rear brakes are dragging after having new linings installed and the drums
machined. the most likely cause is the: - 🧠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: - 🧠ANSWER ✔✔brake fluid or grease on the
brake linings
Which of the following incorrect service procedures will cause brake lock-up? -
🧠ANSWER ✔✔master cylinder push rod adjusted too long
Which of the following incorrect service procedures could cause brake pedal
pulsation? - 🧠ANSWER ✔✔incorrect run-out on the car brake lathe
A common cause of pedal pulsation during brake application is: - 🧠ANSWER
✔✔NOT caused by improperly torqued wheels, damaged backing plates, or
lubricated shims
A properly functioning load sensing proportioning valve will: - 🧠ANSWER
✔✔cause an increase in the hydraulic pressure during braking at the rear wheel
cylinders when the vehicle is loaded.
which of the following is a quick way to isolated a defective master cylinder?
There are no external leaks in the system. - 🧠ANSWER ✔✔pump up the brake
pedal, then hold it firm. if the pedal slowly drops to the floor, the master cylinder
may be defective.