ASE A5 EXAM 2025 QUESTIONS AND
ANSWERS
Insufficient caliper slides clearance will result is - ANS Excessive wear one side than the other
side of pads
Which of the following critical for the assembly of a single piston floating caliper? -
ANS Clearance between the slider and caliper body
Steel piston should be cleaned with __? - ANS Crocus cloth
Do NOT use sand paper, emery cloth to protect from damage
Pulsating brake pedal is caused by ? - ANS Thickness variation will cause lateral runout, which
result this
Worn wheel bearing make what noise? - ANS A growling or grinding noise
A growling or grinding noise 가 들렸다가 when vehicle turn left the noise was changed to pitch
- ANS suspect a faulty right side bearing. The defective bearing is usually on the side opposite
of the turn
A cupped left front tire results in a noise that changes in pitch - ANS Cupped left front tire
change pitch sound on different road surfaces.
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, A vehicle's brake pedal fades to the floorboard resulting in vehicle creep at stoplights. An
initially inspection indicates there are no external leaks found - ANS Leaking master cylinder
cup seals.
(Master cylinder cup seal wear, as fluid bypasses the seal, the brake pedal fades to the
floorboard)
There are two types of lubricants used in automotive braking systems.
1. Silicon based lubricants
2. Synthetic, graphite, or silicon dry for high temperature - ANS Number 1 is for rubber and
plastic parts
Number 2 is for hardware lubricants
A vehicle with a vacuum booster has a hard brake pedal. - ANS - The vacuum check valve
- A clogged check valve hose
- Low manifold vacuum
After a recent brake service the vehicle is lifted up and it is discovered that the left front wheel
does not turn when force is applied. - ANS Brake fluid restriction in the bake line between
the master cylinder and the left front caliper could apply the brakes and not allow the left front
wheel to move
Which of the following is critical for the assembly of a single piston floating caliper? -
ANS Clearance between the slider and caliper body
Tech A says a steel piston should be cleaned with sandpaper to remove rust
Tech B says brake assembly fluid or clean brake fluid should be used to lubricate the caliper
pistons before installing in the caliper. - ANS B only
Steel piston should be cleaned with crocus cloth which is more fine than sandpaper
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 2
ANSWERS
Insufficient caliper slides clearance will result is - ANS Excessive wear one side than the other
side of pads
Which of the following critical for the assembly of a single piston floating caliper? -
ANS Clearance between the slider and caliper body
Steel piston should be cleaned with __? - ANS Crocus cloth
Do NOT use sand paper, emery cloth to protect from damage
Pulsating brake pedal is caused by ? - ANS Thickness variation will cause lateral runout, which
result this
Worn wheel bearing make what noise? - ANS A growling or grinding noise
A growling or grinding noise 가 들렸다가 when vehicle turn left the noise was changed to pitch
- ANS suspect a faulty right side bearing. The defective bearing is usually on the side opposite
of the turn
A cupped left front tire results in a noise that changes in pitch - ANS Cupped left front tire
change pitch sound on different road surfaces.
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 1
, A vehicle's brake pedal fades to the floorboard resulting in vehicle creep at stoplights. An
initially inspection indicates there are no external leaks found - ANS Leaking master cylinder
cup seals.
(Master cylinder cup seal wear, as fluid bypasses the seal, the brake pedal fades to the
floorboard)
There are two types of lubricants used in automotive braking systems.
1. Silicon based lubricants
2. Synthetic, graphite, or silicon dry for high temperature - ANS Number 1 is for rubber and
plastic parts
Number 2 is for hardware lubricants
A vehicle with a vacuum booster has a hard brake pedal. - ANS - The vacuum check valve
- A clogged check valve hose
- Low manifold vacuum
After a recent brake service the vehicle is lifted up and it is discovered that the left front wheel
does not turn when force is applied. - ANS Brake fluid restriction in the bake line between
the master cylinder and the left front caliper could apply the brakes and not allow the left front
wheel to move
Which of the following is critical for the assembly of a single piston floating caliper? -
ANS Clearance between the slider and caliper body
Tech A says a steel piston should be cleaned with sandpaper to remove rust
Tech B says brake assembly fluid or clean brake fluid should be used to lubricate the caliper
pistons before installing in the caliper. - ANS B only
Steel piston should be cleaned with crocus cloth which is more fine than sandpaper
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 2
