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SOS MECHANIC CERTIFICATION -BRAKES EXAM QUESTIONS AND CORRECT ANSWERS| ACCURATE REAL EXAM WITH FREQUENTLY TESTED QUESTIONS AND RATIONALE|ALREADY A GRADED|GUARANTEED PASS|LATEST UPDATE 2024/2025. $24.39
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SOS MECHANIC CERTIFICATION -BRAKES EXAM QUESTIONS AND CORRECT ANSWERS| ACCURATE REAL EXAM WITH FREQUENTLY TESTED QUESTIONS AND RATIONALE|ALREADY A GRADED|GUARANTEED PASS|LATEST UPDATE 2024/2025.
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SOS MECHANIC CERTIFICATION -BRAKES EXAM QUESTIONS AND CORRECT ANSWERS| ACCURATE REAL EXAM WITH FREQUENTLY TESTED QUESTIONS AND RATIONALE|ALREADY A GRADED|GUARANTEED PASS|LATEST UPDATE 2024/2025. SOS MECHANIC CERTIFICATION -BRAKES EXAM QUESTIONS AND CORRECT ANSWERS| ACCURATE REAL EXAM W...

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  • November 13, 2024
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  • 2024/2025
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SOS MECHANIC CERTIFICATION -BRAKES EXAM
QUESTIONS AND CORRECT ANSWERS| ACCURATE REAL
EXAM WITH FREQUENTLY TESTED QUESTIONS AND
RATIONALE|ALREADY A GRADED|GUARANTEED
PASS|LATEST UPDATE 2024/2025.

The front brakes of a car equipped with disc brakes in the front and drum brakes in the rear, grab
quickly as light pressure is applied to the brake pedal, which of the following could be the cause
of the problem? - CORRECT ANSWER Defective metering valve

The brake warning light on the dash stays on all the time, which of the following could be the
cause of the problem? - CORRECT ANSWER A problem in the hydraulic circuit

Which of the following would be the LEAST likely cause for an intermittent problem in an ABS
system? - CORRECT ANSWER Open wheel sensor circuit

The brake lights on a car do not light when the brake pedal is depressed, which of the following
is the LEAST likely cause of the problem? - CORRECT ANSWER A burned out bulb.

Which of the following incorrect service procedures could cause brake pedal pulsation? -
CORRECT ANSWER incorrect run-out on the car brake lathe

What type of rotor surface provides the best braking with new pads? - CORRECT ANSWER A
smooth, flat surface

which of the following is a quick way to isolated a defective master cylinder? There are no
external leaks in the system. - CORRECT ANSWER 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: - CORRECT ANSWER 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? - CORRECT 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: - CORRECT ANSWER brake fluid or grease on the brake linings

Wheel speed sensors: - CORRECT ANSWER send an A/C signal to the control module

Which of the following incorrect service procedures will cause brake lock up? - CORRECT
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? - CORRECT ANSWER A leaking master
cylinder primary piston seal.

Before replacing a hydralic brake hose on an ABS equipped vehicle, you should first: -
CORRECT 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? -
CORRECT 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? - CORRECT ANSWER a broken shoe
hold-down spring or pin

If a drum brake self-adjuster seizes up, the likely result will be: - CORRECT 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? - CORRECT ANSWER brake shoe return springs

On a single anchor duo-servo drum brake system, which shoe does most of the braking? -
CORRECT ANSWER secondary shoe

Which lining does most of the braking on a leading/trailing brake? - CORRECT ANSWER
primary shoe

This tool is used to? - CORRECT ANSWER Adjust the brake shoes to the drum

Which of the following could be a symptom of over-torqued lug nuts? - CORRECT ANSWER
A brake pedal pulsation during braking.

Which of the following describes the proper sequence to bleed brake lines on most rear wheel
drive vehicles: - CORRECT ANSWER RR, LR, RF, LF

In disc brake caliper assemblies, the "square cut seal" is usually located: - CORRECT
ANSWER In the caliper piston bore

When performing a caliper overhaul, what would you use to remove the pistons from the
calipers? - CORRECT ANSWER Compressed air

Sliding caliper disc brake pads are kept in adjustment by the - CORRECT ANSWER Square cut
piston seal

When the brakes are applied on a car with disc-drum brakes, a vibration or pulsating movement
is felt. What can cause this problem? - CORRECT ANSWER A rotor thickness variation

,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

Which of the following would most likely cause dragging brakes? - CORRECT ANSWER A
defective vehicle load sensor

There is a scraping sound coming from one rear brake. The sound stops when the brakes are
applied. What is the likely cause of the problem? - CORRECT ANSWER A broken shoe hold-
down spring or pin

Which of the following can be used to check for rotor thickness variation? - CORRECT
ANSWER Dial indicator

On a vehicle with a disc/drum brake system, the rear wheels lock up under hard braking. The
most likely cause is: - CORRECT ANSWER A defective proportioning valve

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

When adjusting disc-drum brakes, you should: - CORRECT ANSWER Adjust the rear brakes
after releasing the parking brakes

You are rebuilding a master cylinder. What should you use to lubricate the internal parts? -
CORRECT ANSWER Brake fluid

Which of the following is the most likely cause of low fluid level in the master cylinder? -
CORRECT ANSWER Worn brake pads and linings

Which of the following describes the correct sequence for bleeding brake lines on most front
wheel drive vehicles? - CORRECT ANSWER RR,LR, RF, LF

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

The brakes of a car tend to drag, which of the following could be the cause? - CORRECT
ANSWER A stuck wheel cylinder or caliper piston

When repairing damaged brake line, which of the following is correct? - CORRECT ANSWER
Replace entire line that is damaged with a new line bent to the right shape using a tube bender

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 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.

, 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.

Which of the following is the LEAST likely cause of one brake dragging? - CORRECT
ANSWER A corroded master cylinder bore

A car has a spongy pedal. Which of the following could be the cause? - CORRECT ANSWER
Air in the system.

Which of the following is not correct in the procedure for preparing a brake rotor for matching? -
CORRECT ANSWER Use a brake micrometer to measure the diameter

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

All of the following, EXCEPT one could cause the parking brakes to fail or not hold: -
CORRECT ANSWER Air in the system

An example of an incorrect procedure for replacing brake pads in a disc brake system is: -
CORRECT ANSWER Remove the piston from the caliper and clean all rust corrosion, and dirt

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

If vacuum is present on both sides of the diaphragm in a brake booster: - CORRECT ANSWER
The brakes are being released

Which of the following is not a necessary precaution to follow when performing brake repairs on
an ABS equipped vehicle? - CORRECT ANSWER Always remove the electronic brake control
module fuse before adjusting or replacing a wheel speed sensor

Which of the following is true when inspecting wheel speed sensors? - CORRECT ANSWER
You should measure the air gap between the sensor and the reluctor wheel teeth

Which of the following would be the result of an inoperative ABS pump/motor assembly: -
CORRECT ANSWER Conventional braking should still be available

What information might be found on a brake drum to help a mechanic? - CORRECT ANSWER
The maximum diameter dimension

When checking a newly turned drum before putting it back on, you notice a thread-like grooves
in the braking surface. Why are the grooves there? - CORRECT ANSWER The lathe was not
adjusted properly when the drum was turned

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