Update 2025-2026 120 Questions and 100%
Verified Correct Answers Guaranteed A+
A car equipped with a vacuum assist power brake system reads an abnormal amount of
pedal effort to stop the car, which of the following could be the cause? - CORRECT
ANSWER: A plugged booster air breather
A car has a spongy pedal. Which of the following could be the cause? - CORRECT
ANSWER: Air in the system.
A car has an excessive amount of pedal travel during brake application, which of he
following could be the cause? - CORRECT ANSWER: Excessive clearance between the
shoes and drum.
A car's wheels severely vibrate when the brakes are applied, which of the following is
the LEAST likely source of he problem? - CORRECT ANSWER: The master cylinder
A common cause of pedal pulsation during brake application is: - CORRECT ANSWER:
NOT caused by improperly torqued wheels, damaged backing plates, or lubricated
shims
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
A customer complains that the brake pedal slowly moves to the floor when a steady
pressure is applied. There is no sign of fluid leakage. Which of the following is the most
portable cause of the problem? - CORRECT ANSWER: A worn primary cup
A mechanic finds gear lube inside both rear brake drums on a rear wheel drive vehicle.
What is the most likely cause of this problem? - CORRECT ANSWER: A plugged axle
, A properly functioning load sensing proportioning valve will: - CORRECT ANSWER:
cause an increase in the hydraulic pressure during braking at the rear wheel cylinders
when the vehicle is loaded.
A rattle is a single piston disc brake assembly which goes away when the brakes are
applied is most likely a result of: - CORRECT ANSWER: Loose pads in the caliper
ABS speed sensor and sensor rings: - CORRECT ANSWER: should not be hammered
or tapped on and should always be replaced as a matched set
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
After putting a bearing race in a hub, you notice that the new race is loose and can spin
in the hub. What should you do? - CORRECT ANSWER: Replace the hub
After rebuilding a master cylinder, the rod between the master cylinder and booster
should be: - CORRECT ANSWER: adjusted properly
All of the following are steps in the procedure for servicing a typical dual master
cylinder, EXCEPT: - CORRECT ANSWER: Clean the master cylinder with a degreasing
solvent
All of the following procedures, EXCEPT one describe the correct method for bleeding
the individual brakes on a car after the master cylinder has been bled: - CORRECT
ANSWER: The bleeding sequence for all systems begins with the left rear wheel.
All of the following, EXCEPT one could cause the parking brakes to fail or not hold: -
CORRECT ANSWER: Air in the system