ASE A5 Brakes Practice Test
1. A vehicle with a Hydroboost 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.
2. 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.
3. 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.
4. 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.
5. 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
