ASE Brakes A5 Test (Exam 1), ASE A5 Brakes, ASE Brakes A5
(Exam 3), ASE Brakes A5 Test (Exam 2) | 2025 UPDATE!!
A brake line needs replaced. Technician A says that a new section of
line should be installed with compression fittings. Technician B says a
new section of line should be installed using an ISO or double flare.
Who is Correct?
a. A only
b. B only
c. both A & B
d. neither A or B - ✔✔B : B only
why : only tech B is correct. when a steel brake line fails it should be
repaired with a new section of line with wither an ISO or double flare
A brake system which uses a vacuum brake booster has poor braking
performance and a hard, high brake pedal with the engine running.
Which of the following could be the cause?
a. a restricted vacuum hose
b. a leaking mastery cylinder
c. a bypassing master cylinder
d. a stuck open vacuum check valve - ✔✔A : a restricted vacuum hose
,why : a restricted vacuum hose would cause a hard pedal with poor
braking performance
A bypassing master cylinder
can be detected by the:
a. Internal leak test
b. External leak test
c. Compensating port test
d. QTU test - ✔✔a
A complete brake job including installing a new master cylinder has
been performed on a vehicle. After a short test drive all the brakes
locked up. which of the following is the most likely cause?
a. brake shoes were incorrectly installed
b. brake pads were incorrectly installed
c. the master cylinder was incorrectly installed
d. the antilock braking system (ABS) sensors were not properly reset -
✔✔C : the master cylinder was incorrectly installed
why : the most likely cause is that the master cylinder pushrod was
not correctly adjusted
,A correctly honed cylinder
bore should:
a. Have a smooth, polished
surface
b. Have a cross-hatch pattern
c. Be larger than the original
size by a specified amount
d. Have scoring no deeper
than 0.006 inch (0.15 mm) - ✔✔b
A customer has a noise concern coming from the rear of the vehicle.
which of the following could be the answer EXCEPT
a. worn rear wheel bearings
b. rear tires out of balance
c. dragging brake shoes
d. binding parking brake cable - ✔✔B : rear tires out of balance
why : rear tires out of balance would cause a vibration but not a noise
, A customer is concerned that on dry pavement, their vehicle will
occasionally have a rapid brake pulsation similar to the feel of an ABS
stop. What is MOST LIKELY the cause?
a. faulty wheel speed sensor
b. faulty master cylinder
c. faulty ABS control module
d. faulty brake booster - ✔✔A : faulty wheel speed sensor
why : a faulty wheel speed sensor can give false information which
could cause ABS activation when it is not needed
A customer is concerned that the traction control light flashed on
momentarily while driving on slick roads. The technician finds no
stored diagnostic trouble codes. Which of the following is most likely
the cause?
a. a faulty wheel speed sensor
b. a faulty brake modulator
c. normal operation
d. mismatched tires - ✔✔C : normal operation
(Exam 3), ASE Brakes A5 Test (Exam 2) | 2025 UPDATE!!
A brake line needs replaced. Technician A says that a new section of
line should be installed with compression fittings. Technician B says a
new section of line should be installed using an ISO or double flare.
Who is Correct?
a. A only
b. B only
c. both A & B
d. neither A or B - ✔✔B : B only
why : only tech B is correct. when a steel brake line fails it should be
repaired with a new section of line with wither an ISO or double flare
A brake system which uses a vacuum brake booster has poor braking
performance and a hard, high brake pedal with the engine running.
Which of the following could be the cause?
a. a restricted vacuum hose
b. a leaking mastery cylinder
c. a bypassing master cylinder
d. a stuck open vacuum check valve - ✔✔A : a restricted vacuum hose
,why : a restricted vacuum hose would cause a hard pedal with poor
braking performance
A bypassing master cylinder
can be detected by the:
a. Internal leak test
b. External leak test
c. Compensating port test
d. QTU test - ✔✔a
A complete brake job including installing a new master cylinder has
been performed on a vehicle. After a short test drive all the brakes
locked up. which of the following is the most likely cause?
a. brake shoes were incorrectly installed
b. brake pads were incorrectly installed
c. the master cylinder was incorrectly installed
d. the antilock braking system (ABS) sensors were not properly reset -
✔✔C : the master cylinder was incorrectly installed
why : the most likely cause is that the master cylinder pushrod was
not correctly adjusted
,A correctly honed cylinder
bore should:
a. Have a smooth, polished
surface
b. Have a cross-hatch pattern
c. Be larger than the original
size by a specified amount
d. Have scoring no deeper
than 0.006 inch (0.15 mm) - ✔✔b
A customer has a noise concern coming from the rear of the vehicle.
which of the following could be the answer EXCEPT
a. worn rear wheel bearings
b. rear tires out of balance
c. dragging brake shoes
d. binding parking brake cable - ✔✔B : rear tires out of balance
why : rear tires out of balance would cause a vibration but not a noise
, A customer is concerned that on dry pavement, their vehicle will
occasionally have a rapid brake pulsation similar to the feel of an ABS
stop. What is MOST LIKELY the cause?
a. faulty wheel speed sensor
b. faulty master cylinder
c. faulty ABS control module
d. faulty brake booster - ✔✔A : faulty wheel speed sensor
why : a faulty wheel speed sensor can give false information which
could cause ABS activation when it is not needed
A customer is concerned that the traction control light flashed on
momentarily while driving on slick roads. The technician finds no
stored diagnostic trouble codes. Which of the following is most likely
the cause?
a. a faulty wheel speed sensor
b. a faulty brake modulator
c. normal operation
d. mismatched tires - ✔✔C : normal operation
