ASE A5 Brakes Practice Test

46. During a brake inspection, it is noticed that one brake pad has worn more than the other. Which of the following is LEAST likely to cause this condition?

  • A. Air in the system.
  • B. Misalignment
  • C. Sticking caliper slide pins.
  • D. Sticking caliper piston.

46.

Answer A is correct. This is a least-likely type question. Air trapped in the system results in a soft spongy brake pedal.

Answer B is wrong. Misalignment causes uneven brake pad wear.

Answer C is wrong. Sticking caliper slide pins is common and causes uneven brake pad wear.

Answer D is wrong. A sticking caliper piston also causes uneven brake pad wear.

47. The red brake warning light is illuminated on the instrument panel of a vehicle with four-wheel disc brakes. Which of these is LEAST likely to cause this warning light to illuminate?

  • A. Low brake fluid level.
  • B. Unequal brake fluid pressure.
  • C. Grounded parking brake circuit.
  • D. Loose wheel speed sensor plug.

47.

Answer A is wrong. Low fluid level illuminates the red brake light. Check the brake fluid level and the reservoir cap if there's a red warning light.

Answer B is wrong. The pressure differential switch activates the red brake warning light if there is unequal fluid pressure.

Answer C is wrong. The red warning light indicates a problem with the hydraulic system or parking brake engagement.

Answer D is correct. Answer D is correct because a loose wheel speed sensor plug would illuminate the amber warning light instead of the red brake warning light.

48. The right brake light is inoperative when the brake pedal is depressed. All the other lights function correctly. Which of the following would cause this inoperative brake light?

  • A. The right rear bulb socket.
  • B. The right rear bulb.
  • C. The brake light fuse.
  • D. Both A and B.

48.

Answer A is wrong. Only because both answers A and B are correct. Check the bulb and the socket for proper fit and operation.

Answer B is wrong. The right rear bulb and socket should be inspected.

Answer C is wrong. The fuse protects the entire circuit. The left brake light circuit would also be inoperative if the fuse were loose or blown.

Answer D is correct. Both A and B are correct. Check the socket and the bulb for operation and resistance.

49. The manufacturer recommends performing a burnishing procedure after brake pad installation. Technician A says to burnish brake pads make several hard high speed stops. Technician B says this process includes light application of the brake pedal and a brief cool-down period between stops. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

49.

Answer A is wrong. Technician B is correct. The procedure involves smooth, easy stops from 30 mph not hard stops from 55 mph.

Answer B is correct. The burnishing or break in procedure cures the friction materials in the pads. It provides for better braking performance.

Answer C is wrong. Technician B is correct.

Answer D is wrong. Technician B is correct.

50. The front brake pads on a vehicle with a quick take-up master cylinder need replacement. They were recently replaced. Technician A says this is a low drag brake system. Technician B says the master cylinder quick take-up valve could be sticking. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

50.

Answer A is wrong. Both technicians are correct. This type of master cylinder is used with low drag brake calipers. It is distinguishable by a large diameter piston, and primary low pressure bore located at the back or push rod end of the master cylinder.

Answer B is wrong. The quick take up master cylinder provides more brake fluid volume to take up the additional space between the pads and the rotor. They are fuel-efficient.

Answer C is correct. Both technicians are correct.

Answer D is wrong. Both technicians are correct.