SOS MECHANIC UPDATED COMPREHENSIVE
QUESTIONS AND ANSWERS SURE A+
✔✔Which of the following would most likely cause dragging brakes? - ✔✔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? - ✔✔A broken shoe hold-
down spring or pin
✔✔Which of the following can be used to check for rotor thickness variation? - ✔✔Dial
indicator
✔✔On a vehicle with a disc/drum brake system, the rear wheels lock up under hard
braking. The most likely cause is: - ✔✔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? - ✔✔Replace the hub
✔✔When adjusting disc-drum brakes, you should: - ✔✔Adjust the rear brakes after
releasing the parking brakes
✔✔You are rebuilding a master cylinder. What should you use to lubricate the internal
parts? - ✔✔Brake fluid
✔✔Which of the following is the most likely cause of low fluid level in the master
cylinder? - ✔✔Worn brake pads and linings
✔✔Which of the following describes the correct sequence for bleeding brake lines on
most front wheel drive vehicles? - ✔✔RR,LR, RF, LF
, ✔✔All of the following are steps in the procedure for servicing a typical dual master
cylinder, EXCEPT: - ✔✔Clean the master cylinder with a degreasing solvent
✔✔The brakes of a car tend to drag, which of the following could be the cause? - ✔✔A
stuck wheel cylinder or caliper piston
✔✔When repairing damaged brake line, which of the following is correct? - ✔✔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? - ✔✔A worn primary cup
✔✔A car has an excessive amount of pedal travel during brake application, which of he
following could be the cause? - ✔✔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: -
✔✔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? - ✔✔A
corroded master cylinder bore
✔✔A car has a spongy pedal. Which of the following could be the cause? - ✔✔Air in the
system.
✔✔Which of the following is not correct in the procedure for preparing a brake rotor for
matching? - ✔✔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? - ✔✔A
plugged booster air breather
✔✔All of the following, EXCEPT one could cause the parking brakes to fail or not hold: -
✔✔Air in the system
✔✔An example of an incorrect procedure for replacing brake pads in a disc brake
system is: - ✔✔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? - ✔✔The master cylinder
QUESTIONS AND ANSWERS SURE A+
✔✔Which of the following would most likely cause dragging brakes? - ✔✔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? - ✔✔A broken shoe hold-
down spring or pin
✔✔Which of the following can be used to check for rotor thickness variation? - ✔✔Dial
indicator
✔✔On a vehicle with a disc/drum brake system, the rear wheels lock up under hard
braking. The most likely cause is: - ✔✔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? - ✔✔Replace the hub
✔✔When adjusting disc-drum brakes, you should: - ✔✔Adjust the rear brakes after
releasing the parking brakes
✔✔You are rebuilding a master cylinder. What should you use to lubricate the internal
parts? - ✔✔Brake fluid
✔✔Which of the following is the most likely cause of low fluid level in the master
cylinder? - ✔✔Worn brake pads and linings
✔✔Which of the following describes the correct sequence for bleeding brake lines on
most front wheel drive vehicles? - ✔✔RR,LR, RF, LF
, ✔✔All of the following are steps in the procedure for servicing a typical dual master
cylinder, EXCEPT: - ✔✔Clean the master cylinder with a degreasing solvent
✔✔The brakes of a car tend to drag, which of the following could be the cause? - ✔✔A
stuck wheel cylinder or caliper piston
✔✔When repairing damaged brake line, which of the following is correct? - ✔✔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? - ✔✔A worn primary cup
✔✔A car has an excessive amount of pedal travel during brake application, which of he
following could be the cause? - ✔✔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: -
✔✔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? - ✔✔A
corroded master cylinder bore
✔✔A car has a spongy pedal. Which of the following could be the cause? - ✔✔Air in the
system.
✔✔Which of the following is not correct in the procedure for preparing a brake rotor for
matching? - ✔✔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? - ✔✔A
plugged booster air breather
✔✔All of the following, EXCEPT one could cause the parking brakes to fail or not hold: -
✔✔Air in the system
✔✔An example of an incorrect procedure for replacing brake pads in a disc brake
system is: - ✔✔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? - ✔✔The master cylinder
