SOS Mechanic Certification - Brakes (Complete Solutions, Answered) When performing a caliper overhaul, what would you use to remove the pistons from the calipers? Compressed air Sliding caliper disc brake pads are kept
...
SOS Mechanic Certification - Brakes (Complete Solutions, Answered) When performing a caliper overhaul, what would you use to remove the pistons from the calipers? Compressed air Sliding caliper disc brake pads are kept in adjustment by the 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? 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: Loose pads in the caliper 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 the 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
[Show More]
