ASE A5 Practice Test Brakes Exam Questions and Mark Scheme Revision
A hydro-boost brake system has reduced braking performance. Technician A says to check the
power steering system. Technician B says to check the vacuum check valve. Who is correct? -
✔✔✔-TECH A is correct. The power steering pump produces pressure for the Hydro-Boost unit.
A technician is lubricating rubber brake components while performing a brake job. Technician A
says to use a high temperature silicon based lubricant. Technician B says to use a good
petroleum based lubricant. Who is correct? - ✔✔✔-TECH A is correct. Use high temperature
silicon based lubricant that does not contain petroleum.
A technician is measuring the inside diameter of a brake drum with a brake drum micrometer.
The technician should use which of the following measurements
A. The smallest measurement.
B. A brake drum tool is not used.
C. The average of all the measurements.
D. The largest measurement. - ✔✔✔-Answer D is correct. The largest measurement is used.
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. - ✔✔✔-Answer C is correct. The solenoid valve is not part of the
combination valve.
A vehicle has a low brake pedal. Technician A says an improperly adjusted brake pedal could be
the cause. Technician B says overheated brake fluid could cause this condition. Who is correct? -
✔✔✔-Both Technicians are correct. An under adjusted brake pedal will cause a low brake pedal.
Excessive heat damages brake fluid resulting in a spongy or low brake pedal.
, ASE A5 Practice Test Brakes Exam Questions and Mark Scheme Revision
A vehicle has a low spongy brake pedal. Which of these is LEAST likely to result in this condition?
A. Loose wheel bearings.
B. Contaminated brake fluid.
C. Worn brake pads.
D. Air in the hydraulic system. - ✔✔✔-Answer C is correct. Low brake pads would result in a
warning clip squeal or tire pad sensor light illumination.
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 is correct. A frozen right front caliper will cause
the vehicle to pull to the left when braking.
A vehicle stops but the brake pedal fades completely to the floorboard afterwards. There are no
external leaks. Which of these is the MOST likely cause of this condition.
A. Faulty vacuum brake booster.
B. Clogged vacuum booster check valve.
C. Dark discolored brake fluid.
D. Master cylinder cup seals. - ✔✔✔-Answer D is correct. Master cylinder cup seals wear and
create an internal leak. The pedal fades to the floor as fluid bypasses the seal.
A vehicle suffers from uneven pad wear. Technician A says to check for sticking slide pins.
Technician B says this could be caused by a sticking caliper piston. Who is correct? - ✔✔✔-Both
technicians are correct.
A vehicle with a vacuum brake booster has a hard pedal with little stopping power. Technician A
says a kink in the check valve's hose will result in this condition. Technician B says a vacuum
A hydro-boost brake system has reduced braking performance. Technician A says to check the
power steering system. Technician B says to check the vacuum check valve. Who is correct? -
✔✔✔-TECH A is correct. The power steering pump produces pressure for the Hydro-Boost unit.
A technician is lubricating rubber brake components while performing a brake job. Technician A
says to use a high temperature silicon based lubricant. Technician B says to use a good
petroleum based lubricant. Who is correct? - ✔✔✔-TECH A is correct. Use high temperature
silicon based lubricant that does not contain petroleum.
A technician is measuring the inside diameter of a brake drum with a brake drum micrometer.
The technician should use which of the following measurements
A. The smallest measurement.
B. A brake drum tool is not used.
C. The average of all the measurements.
D. The largest measurement. - ✔✔✔-Answer D is correct. The largest measurement is used.
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. - ✔✔✔-Answer C is correct. The solenoid valve is not part of the
combination valve.
A vehicle has a low brake pedal. Technician A says an improperly adjusted brake pedal could be
the cause. Technician B says overheated brake fluid could cause this condition. Who is correct? -
✔✔✔-Both Technicians are correct. An under adjusted brake pedal will cause a low brake pedal.
Excessive heat damages brake fluid resulting in a spongy or low brake pedal.
, ASE A5 Practice Test Brakes Exam Questions and Mark Scheme Revision
A vehicle has a low spongy brake pedal. Which of these is LEAST likely to result in this condition?
A. Loose wheel bearings.
B. Contaminated brake fluid.
C. Worn brake pads.
D. Air in the hydraulic system. - ✔✔✔-Answer C is correct. Low brake pads would result in a
warning clip squeal or tire pad sensor light illumination.
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 is correct. A frozen right front caliper will cause
the vehicle to pull to the left when braking.
A vehicle stops but the brake pedal fades completely to the floorboard afterwards. There are no
external leaks. Which of these is the MOST likely cause of this condition.
A. Faulty vacuum brake booster.
B. Clogged vacuum booster check valve.
C. Dark discolored brake fluid.
D. Master cylinder cup seals. - ✔✔✔-Answer D is correct. Master cylinder cup seals wear and
create an internal leak. The pedal fades to the floor as fluid bypasses the seal.
A vehicle suffers from uneven pad wear. Technician A says to check for sticking slide pins.
Technician B says this could be caused by a sticking caliper piston. Who is correct? - ✔✔✔-Both
technicians are correct.
A vehicle with a vacuum brake booster has a hard pedal with little stopping power. Technician A
says a kink in the check valve's hose will result in this condition. Technician B says a vacuum
