SOS MECHANIC CERTIFICATION BUNDLE
FINAL PAPER 2026 QUESTIONS AND ANSWERS
VERIFIED
◉ 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? Answer: 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: Answer:
brake fluid or grease on the brake linings
◉ Wheel speed sensors: Answer: send an A/C signal to the control
module
◉ Which of the following incorrect service procedures will cause
brake lock up? Answer: 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? Answer: A leaking master cylinder primary piston
seal.
, ◉ Before replacing a hydralic brake hose on an ABS equipped
vehicle, you should first: Answer: relieve brake system pressure
according to manufacturer procedures
◉ When would the pump motor be activated in an anti-lcok brake
system with traction assist? Answer: when brake pedal pulsates
◉ 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? Answer: a broken shoe hold-down spring or pin
◉ If a drum brake self-adjuster seizes up, the likely result will be:
Answer: 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?
Answer: brake shoe return springs
◉ On a single anchor duo-servo drum brake system, which shoe
does most of the braking? Answer: secondary shoe
◉ Which lining does most of the braking on a leading/trailing brake?
Answer: primary shoe
FINAL PAPER 2026 QUESTIONS AND ANSWERS
VERIFIED
◉ 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? Answer: 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: Answer:
brake fluid or grease on the brake linings
◉ Wheel speed sensors: Answer: send an A/C signal to the control
module
◉ Which of the following incorrect service procedures will cause
brake lock up? Answer: 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? Answer: A leaking master cylinder primary piston
seal.
, ◉ Before replacing a hydralic brake hose on an ABS equipped
vehicle, you should first: Answer: relieve brake system pressure
according to manufacturer procedures
◉ When would the pump motor be activated in an anti-lcok brake
system with traction assist? Answer: when brake pedal pulsates
◉ 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? Answer: a broken shoe hold-down spring or pin
◉ If a drum brake self-adjuster seizes up, the likely result will be:
Answer: 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?
Answer: brake shoe return springs
◉ On a single anchor duo-servo drum brake system, which shoe
does most of the braking? Answer: secondary shoe
◉ Which lining does most of the braking on a leading/trailing brake?
Answer: primary shoe
