ASE A5 Brakes Practice Test

16. The left front brake of a four wheel disc brake system is dragging. Which of these is LEAST likely to cause this condition?

  • A. Glazed brake pads.
  • B. Restriction in the brake line.
  • C. Rusted caliper slides.
  • D. Twist in the brake hose.

16.

Answer A is correct. Glazed brake pads result from excessive heat. This heat can be caused by a dragging brake unit. Glazing is more a problem with drum brake systems than disc systems because pads get more ventilation. Glazed shoes or pads cause brake fade resulting in a loss of friction and reduced braking performance.

Answer B is wrong. A kink or restriction in the brake line will allow fluid to apply the brake unit but not allow fluid to return to the master cylinder.

Answer C is wrong. Rusted caliper slides will result in brake drag.

Answer D is wrong. A kinked or twisted brake hose will result in brake drag.

17. A vibration is felt in the steering wheel only while braking. Technician A says excessive lateral runout on the front rotors will result in this condition. Technician B says to use a dial indicator to check lateral runout. Who is correct?

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

17.

Answer A is wrong. A vibration in the steering wheel indicates a problem with the front rotors and a vibration in the seat the rears.

Answer B is wrong. A dial indicator is used to check lateral runout. Lateral runout can be caused by unevenly and excessively torqued lug nuts or studs, or a burr or rust between the hub and rotor.

Answer C is correct. Both technicians are correct.

Answer D is wrong. Both technicians are correct.

18.

Digital Micrometer

The reading on the metric micrometer above is:

  • A. 11 mm
  • B. 11.5 mm
  • C. 12.0 mm
  • D. 12.5 mm

18.

Digital Micrometer

Answer A is wrong. The answer is 11.5 mm.

Answer B is correct. The answer is 11.5 mm.

Answer C is wrong. The answer is 11.5 mm.

Answer D is wrong. A The answer is 11.5 mm.

19. Technician A says to use the original brass washer when installing a new flexible brake hose. Technician B says to use a compression fitting to repair a small leak in a stainless steel brake line. Who is correct?

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

19.

Answer A is wrong. Always use the new washer when replacing a brake hose.

Answer B is wrong. Never use a compression fitting on a brake line.

Answer C is wrong. Neither technician is correct.

Answer D is correct. Neither technician is correct.

20. A three-function combination valve has all of these EXCEPT a:

  • A. Proportioning valve.
  • B. Metering valve.
  • C. Solenoid valve.
  • D. Brake failure light switch.

20.

Answer A is wrong. The proportioning valve is part of the combination valve.

Answer B is wrong. The metering valve is part of the combination valve.

Answer C is correct. The solenoid valve is not part of the combination valve.

Answer D is wrong. The brake failure light switch is part of the combination valve.