MICHIGAN STATE BRAKES CERTIFICATION QUESTIONS WITH COMPLETE SOLUTIONS

MICHIGAN STATE BRAKES CERTIFICATION QUESTIONS WITH COMPLETE SOLUTIONS A cracked or torn vacuum diaphragm in a brake power booster would most likely cause: - (ANSWER)a hard pedal feel requiring very high pedal effort to stop to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4 times, hold the brake pedal depressed, and start the engine. the brake pedal should: - (ANSWER)drop slightly and remain firm A mechanic finds gear lube inside both rear drums on a rear wheel drive vehicle. What is most likely the cause of this problem? - (ANSWER)a plugged axle The rear brakes are dragging after having new linings installed and the drums machined. the most likely cause is the: - (ANSWER)technician use the parking brake to adjust shoes and the cable is stuck 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 Which of the following incorrect service procedures will cause brake lock-up? - (ANSWER)master cylinder push rod adjusted too long Which of the following incorrect service procedures could cause brake pedal pulsation? - (ANSWER)incorrect run-out on the car brake lathe A common cause of pedal pulsation during brake application is: - (ANSWER)NOT caused by improperly torqued wheels, damaged backing plates, or lubricated shims A properly functioning load sensing proportioning valve will: - (ANSWER)cause an increase in the hydraulic pressure during braking at the rear wheel cylinders when the vehicle is loaded. which of the following is a quick way to isolated a defective master cylinder? There are no external leaks in the system. - (ANSWER)pump up the brake pedal, then hold it firm. if the pedal slowly drops to the floor, the master cylinder may be defective. After rebuilding a master cylinder, the rod between the master cylinder and booster should be: - (ANSWER)adjusted properly Upon inspecting brake fluid condition, the technician observes the diaphragm in the master cylinder cup is swollen. Which of the following is the most likely cause? - (ANSWER)silicone fluid added to the system