SOS Brake & Braking System Exam Questions And Answers 100% Verified

SOS Brake & Braking System Exam Questions And Answers 100% Verified In a single anchor bendix drum type rear brake - answerthe secondary lining is longer than the primary Compared to the secondary shoe lining areas of drum brakes, the primary shoe lining area is: - answersmaller and goes toward the front of the car During a brake overhaul, you notice that the brake fluid seems to be very dirty and dark in color. What should you do? - answerflush the system before the new parts are installed In order to bleed the system on a vehicle equipped with power brakes: - answerNone of the above Which of the following could be a symptom of over-torqued lug nuts? - answerA brake pedal pulsation during braking. Which of the following describes the proper sequence to bleed brake lines on most rear wheel drive vehicles: - answerRR, LR, RF, LF In disc brake caliper assemblies, the "square cut seal" is usually located: - answerIn the caliper piston bore When performing a caliper overhaul, what would you use to remove the pistons from the calipers? - answerCompressed air Sliding caliper disc brake pads are kept in adjustment by the - answerSquare cut piston seal A cracked or torn vacuum diaphragm in a power booster would likely cause: - answerHard pedal with very high effort required When the brakes are applied on a car with disc-drum brakes, a vibration or pulsating movement is felt. What can cause this problem? - answerA rotor thickness variation While test driving a car, the mechanic finds that the right front brake "grabs". The most likely cause of this problem is: - answerBrake fluid or grease on the brake linings. 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? - answerA leaking master cylinder primary piston seal. A rattle is a single piston disc brake assembly which goes away when the brakes are applied is most likely a result of: - answerLoose pads in the caliper Which of the following would most likely cause dragging brakes? - answerA defective vehicle load sensor With the car standing still, you can hear a squeaking noise when applying the brake pedal slowly. What could cause this noise? - answerDry backing plate contact surfaces. 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? - answerA broken shoe hold-down spring or pin If a drum brake self-adjuster seizes up, the likely result will be: - answerA low pedal Which of the following can be used to check for rotor thickness variation? - answerDial indicator On a vehicle with a disc/drum brake system, the rear wheels lock up under hard braking. The most likely cause is: - answerA 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? - answerReplace the hub When adjusting disc-drum brakes, you should: - answerAdjust the rear brakes after releasing the parking brakes What type of rotor surface provides the best braking with new pads? - answerA smooth, flat surface Which of the following is a quick way to determine whether the master cylinder is bad? There are no external leaks in the system. - answerPump up the brake pedal, then hold it firm. If the pedal slowly drops to the floor, the master cylinder is bad. You are rebuilding a master cylinder. What should you use to lubricate the internal parts? - answerBrake fluid Which of the following is the most likely cause of low fluid level in the master cylinder? - answerWorn brake pads and linings After drum brakes have been applied and released, the brake fluid returns to the master cylinder reservoir. What causes it to return? - answerBrake shoe return springs Which of the following describes the correct sequence for bleeding brake lines on most front wheel drive vehicles? - answerRR,LR, RF, LF