SOS BRAKE AND BRAKING SYSTEM EXAM
2024-2025
In a single anchor Bendix drum-type rear brake, the secondary lining is longer than
the primary.
Compared to the secondary shoe-lining sections of drum brakes, the primary
shoe-lining area is smaller and moves toward the front of the car.
During a brake overhaul, you observe that the brake fluid appears to be quite dirty
and dark in color. What should you do? - ANSWER: flush the system before the
new parts are placed.
To bleed the system in a car with power brakes: - None of the above
Which of the following symptoms could indicate over-torqued lug nuts? -
ANSWER: Pulsation of the brake pedal during braking.
Which of the following indicates the right order to bleed brake lines on most rear
wheel drive vehicles? - RR, LR, RF, LF.
In disc brake caliper assemblies, the "square cut seal" is commonly found in the
caliper piston bore.
When completing a caliper overhaul, how would you remove the pistons from the
calipers? - ANSWER Compressed Air
The square-cut piston seal maintains the adjustment of sliding caliper disc brake
pads.
, A fractured or torn vacuum diaphragm in a power booster would most likely cause:
- ANSWER Hard pedal with significant effort required.
When the brakes are applied to an automobile with disc-drum brakes, a tremor or
pulsating movement occurs. What could be the reason of this problem? - ANSWER
A rotor thickness variation.
While test-driving an automobile, the mechanic notices that the right front brake
"grabs". The most likely source of this issue is the presence of brake fluid or grease
on the brake linings.
During a road test, you notice that when regular braking pressure is applied, the
pedal gradually moves to the floor. What's the most likely source of this problem? -
ANSWER: A leaky master cylinder primary piston seal.
A rattling is a single piston disc brake assembly that disappears when the brakes are
applied and is most likely caused by: - ANSWER Loose pads in the caliper.
Which of the following is most likely to produce dragging brakes? - ANSWER A
malfunctioning vehicle load sensor.
When you slowly apply the brake pedal when the car is stopped, you will hear a
squeaky noise. What could be the cause of this noise? - ANSWER: Dry the backing
plate's contact surfaces.
One rear brake produces a scratching sound. The sound stops when the brakes are
engaged. What's the most likely cause of the problem? - ANSWER A damaged
shoe hold-down spring or pin
If a drum brake self-adjuster seizes, the typical effect is a low pedal.
2024-2025
In a single anchor Bendix drum-type rear brake, the secondary lining is longer than
the primary.
Compared to the secondary shoe-lining sections of drum brakes, the primary
shoe-lining area is smaller and moves toward the front of the car.
During a brake overhaul, you observe that the brake fluid appears to be quite dirty
and dark in color. What should you do? - ANSWER: flush the system before the
new parts are placed.
To bleed the system in a car with power brakes: - None of the above
Which of the following symptoms could indicate over-torqued lug nuts? -
ANSWER: Pulsation of the brake pedal during braking.
Which of the following indicates the right order to bleed brake lines on most rear
wheel drive vehicles? - RR, LR, RF, LF.
In disc brake caliper assemblies, the "square cut seal" is commonly found in the
caliper piston bore.
When completing a caliper overhaul, how would you remove the pistons from the
calipers? - ANSWER Compressed Air
The square-cut piston seal maintains the adjustment of sliding caliper disc brake
pads.
, A fractured or torn vacuum diaphragm in a power booster would most likely cause:
- ANSWER Hard pedal with significant effort required.
When the brakes are applied to an automobile with disc-drum brakes, a tremor or
pulsating movement occurs. What could be the reason of this problem? - ANSWER
A rotor thickness variation.
While test-driving an automobile, the mechanic notices that the right front brake
"grabs". The most likely source of this issue is the presence of brake fluid or grease
on the brake linings.
During a road test, you notice that when regular braking pressure is applied, the
pedal gradually moves to the floor. What's the most likely source of this problem? -
ANSWER: A leaky master cylinder primary piston seal.
A rattling is a single piston disc brake assembly that disappears when the brakes are
applied and is most likely caused by: - ANSWER Loose pads in the caliper.
Which of the following is most likely to produce dragging brakes? - ANSWER A
malfunctioning vehicle load sensor.
When you slowly apply the brake pedal when the car is stopped, you will hear a
squeaky noise. What could be the cause of this noise? - ANSWER: Dry the backing
plate's contact surfaces.
One rear brake produces a scratching sound. The sound stops when the brakes are
engaged. What's the most likely cause of the problem? - ANSWER A damaged
shoe hold-down spring or pin
If a drum brake self-adjuster seizes, the typical effect is a low pedal.
