ASE Brakes Practice Test Questions and Correct Answers

ASE Brakes Practice Test Questions and Correct Answers A vehicle with a Hydro boost brake system has reduced braking performance. Which of the following is causing this poor performance? A. Low manifold vacuum. B. A faulty vacuum check valve. C. A clogged inlet valve. D. A faulty power steering pump. - ANSWER D. faulty power steering pump A vehicle with a vacuum booster has a hard brake pedal. Which of the following is LEAST likely to cause this condition? A. The master cylinder. B. The vacuum check valve. C. A clogged check valve hose. D. Low manifold vacuum. - ANSWER A. The master cylinder A vehicle pulls to the left only when the brakes are applied. This condition is MOST likely caused by: A. A seized left front caliper. B. A restriction in the left front brake line. C. Leaking master cylinder cup seals. D. A seized right front caliper. - ANSWER D. seized right front caliper A technician has inspected the brakes of a front disc rear drum brake system and found that the brake shoes are worn and require replacement. All of the following statements are correct about brake shoe replacement EXCEPT: A. The primary shoe faces the front of the vehicle. B. The secondary shoe has a shorter brake shoe lining. C. The secondary shoe faces the rear of the vehicle. D. Shoe lining can be riveted or glued to the shoe. - ANSWER B. The secondary shoe has a shorter brake shoe lining Technician A says ABS control units are programmed to ignore speed sensor input variations below a certain threshold. Technician B says a one-channel ABS brake system controls hydraulic pressure to the rear brake units. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - ANSWER C. Both A and B After replacing all four rotors and pads on a disc brake system, a pulsation is still felt in the steering wheel when braking. Which of the following is MOST likely causing this vibration? A. A rusty hub flange. B. Sticking slide pins. C. Thickness variation. D. Lateral run out. - ANSWER A. A rusty hub flange