Ase Brakes Exam Questions And Answers

On a car with disc/drum brakes, the front brakes grab quickly when light pedal pressure is applied. this problem could be caused by a bad: A: proportioning valve B: Pressure safety switch C: metering valve D: Residual check valve - Answer- C: metering valve The driver of a vehicle with power disc/drum brakes says the brake pedal moves slowly to the floor while maintaining pedal pressure at a stoplight. What could cause this problem? A: leaking primary piston cup in master cylinder B: leaking power brake booster C: leaking residual check valve in master cylinder D: internal leak in the combination valve - Answer- A: leaking primary piston cup in master cylinder which of the following would MOST LIKELY happen if the measurements took from the check shown above varied from the manufacturer's specifications? A: Noisy brake operation B: Brake grab or pull C: pulsating brake pedal D: low brake pedal - Answer- C: pulsating brake pedal what is the purpose of the master cylinder residual check valve(s) on vehicles equipped with drum brakes? A: Allows the driver to pump up the brakes B: prevents air from entering the hydraulic system C: prevents wheel lockup by reducing the hydraulic pressure D: reduces pedal pulsation by controlling hydraulic pressure - Answer- B: prevents air from entering the hydraulic system Which of the following is caused by a power assist brake booster push rod that is too short? A: Brake light is illuminated B: excessive brake drag C: brake system to be inoperative D: Excessive brake pedal travel - Answer- D: excessive brake pedal travel Which of the following indicates a spongy brake pedal on a car with 4-wheel disc brakes and a longer than normal travel? A: Caliper piston seized B: Parking brake out of adjustment C: