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 th is poor performance? A. Low manifold vacuum. B. A faulty vacuum check valve. C. A clogged inlet valve. D. A faulty power steering pump. - CORRECT ANSWER D. faulty power steering pump A vehicle with a vacuum booster has a hard brake pedal. Whi ch 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. - CORRECT ANSWER A. The master cylinder A vehicle pulls to the left only wh en 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. - CORRECT ANSWER D. seize d 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 pri mary 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. - CORRECT 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. T echnician 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 - CORRECT ANSWER C. Both A and B After replacing all four r otors 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. - CORRECT ANSWER A. A rusty hub flange A vehicle has a soft and spongy brake pedal at all times. Which of the following is causing this spongy pedal? A. Air in the brake lines. B. Low manifold vacuum. C. The brake booster. D. Master cylinder cu p seals. - CORRECT ANSWER A. Air in the brake lines A vehicle with a front disc rear drum brake system nosedives while lightly braking. Which of the following is causing this condition? A. Worn brake pads. B. Over -adjusted brakes. C. The prop ortioning valve. D. The metering valve. - CORRECT ANSWER D. The metering valve . A vehicle has a grinding noise that gets louder and changes in pitch while turning left. Which of the following is causing this noise? A. A cupped left front tire. B. A faulty right front wheel bearing. C. A grabbing left front brake. D. Worn left front strut. - CORRECT ANSWER B. A faulty right front wheel bearing A customer states that the TCS traction control system's warn ing light flashes while driving in snow and other poor weather conditions. Technician A says it is normal for the warning light to flash when the system is active, or the vehicle is losing traction. Technician B says these systems require a wheel speed sen sor at each wheel. Who is correct? A. Technician A B. Technician B