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SOS MECHANIC CERTIFICATION TEST 2 VESIONS 2025/2026
NEWEST ACTUAL EXAM WITH COMPLETE QUESTIONS AND
VERIFIED ANSWERS |ALREADY GRADED A+|
Which of the following is a quick way to isolated a defective
master cylinder? There are no external leaks in the system. -
ANSWERS-pump up the brake pedal, then hold it firm. if the
pedal slowly drops to the floor, the master cylinder may be
defective.
A common cause of pedal pulsation during brake application is: -
ANSWERS-NOT caused by improperly torqued wheels, damaged
backing plates, or lubricated shims
the car is at reset. When you slowly apply the brake pedal you
hear a squeaking noise at the rear of the vehicle. what could
cause this noise? -ANSWERS-dry backing plate contact surfaces
While test driving a car, the mechanic finds that the right front
brake "grabs". The most likely cause of this problem is: -
ANSWERS-brake fluid or grease on the brake linings
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Wheel speed sensors: -ANSWERS-send an A/C signal to the
control module
Which of the following incorrect service procedures will cause
brake lock up? -ANSWERS-Master Cylinder push rod adjusted
too long
During a road test, you find that when normal breaking pressure is
applied the pedal slowly goes to the floor. What is the likely cause
of this problem? -ANSWERS-A leaking master cylinder primary
piston seal.
Before replacing a hydralic brake hose on an ABS equipped
vehicle, you should first: -ANSWERS-relieve brake system
pressure according to manufacturer procedures
When would the pump motor be activated in an anti-lcok brake
system with traction assist? -ANSWERS-when brake pedal
pulsates
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There is a scraping sound coming from one rear brake. The
sound stops when the brakes are applied. What is most likely the
cause of the problem? -ANSWERS-a broken shoe hold-down
spring or pin
If a drum brake self-adjuster seizes up, the likely result will be: -
ANSWERS-NOT a low pedal, worn or brake drum, or a loose
emergency brake cable.
After drum brakes have been applied and released, the brake
fluid returns to the master cylinder reservoir. What causes it to
return? -ANSWERS-brake shoe return springs
On a single anchor duo-servo drum brake system, which shoe
does most of the braking? -ANSWERS-secondary shoe
Which lining does most of the braking on a leading/trailing brake?
-ANSWERS-primary shoe
SOS MECHANIC CERTIFICATION TEST 2 VESIONS 2025/2026
NEWEST ACTUAL EXAM WITH COMPLETE QUESTIONS AND
VERIFIED ANSWERS |ALREADY GRADED A+|
Which of the following is a quick way to isolated a defective
master cylinder? There are no external leaks in the system. -
ANSWERS-pump up the brake pedal, then hold it firm. if the
pedal slowly drops to the floor, the master cylinder may be
defective.
A common cause of pedal pulsation during brake application is: -
ANSWERS-NOT caused by improperly torqued wheels, damaged
backing plates, or lubricated shims
the car is at reset. When you slowly apply the brake pedal you
hear a squeaking noise at the rear of the vehicle. what could
cause this noise? -ANSWERS-dry backing plate contact surfaces
While test driving a car, the mechanic finds that the right front
brake "grabs". The most likely cause of this problem is: -
ANSWERS-brake fluid or grease on the brake linings
, Page |2
Wheel speed sensors: -ANSWERS-send an A/C signal to the
control module
Which of the following incorrect service procedures will cause
brake lock up? -ANSWERS-Master Cylinder push rod adjusted
too long
During a road test, you find that when normal breaking pressure is
applied the pedal slowly goes to the floor. What is the likely cause
of this problem? -ANSWERS-A leaking master cylinder primary
piston seal.
Before replacing a hydralic brake hose on an ABS equipped
vehicle, you should first: -ANSWERS-relieve brake system
pressure according to manufacturer procedures
When would the pump motor be activated in an anti-lcok brake
system with traction assist? -ANSWERS-when brake pedal
pulsates
, Page |3
There is a scraping sound coming from one rear brake. The
sound stops when the brakes are applied. What is most likely the
cause of the problem? -ANSWERS-a broken shoe hold-down
spring or pin
If a drum brake self-adjuster seizes up, the likely result will be: -
ANSWERS-NOT a low pedal, worn or brake drum, or a loose
emergency brake cable.
After drum brakes have been applied and released, the brake
fluid returns to the master cylinder reservoir. What causes it to
return? -ANSWERS-brake shoe return springs
On a single anchor duo-servo drum brake system, which shoe
does most of the braking? -ANSWERS-secondary shoe
Which lining does most of the braking on a leading/trailing brake?
-ANSWERS-primary shoe
