ASE BRAKES A5 TEST ( EXAM 1 ), ASE A5 BRAKES, ASE BRAKES A5 ( EXAM 3 ) ,
ASE BRAKES A5 TEST ( EXAM 2 ) QUESTIONS AND VERIFIED ANSWERS| 100%
CORRECT| GRADE A+ |100% PASS
A drum is chattering on the brake lathe. This could be a result of
a. failure to install the dampening belt
b. cutting too slowly
c. dull cutting blades
d. cutting speed too fast - ANSWER A : failure to install the dampening belt
why : a missing dampening belt could cause the drum to vibrate while on the lathe. this vibration can
cause the drum to bounce on the cutting tip and make a chattering noise
A vehicle equipped with a hydro-boost brake system has a hard pedal with little braking action. Which of
the following could be the cause?
a. low brake fluid
b. air in the brake fluid
c. low power steering fluid
d. an overtightened power steering belt - ANSWER C : low power steering fluid
why : low power steering fluid can cause the booster to provide very little if any boost
The technician is preparing to do a break job on a vehicle equipped with integral ABS. Which of the
following should be done?
a. pump the pedal 25-40 times
b. remove the fuses for the ABS controller
c. apply the parking brake
d. remove the fuse for the ignition system - ANSWER A : pump the pedal 25-40 times
why : the pedal should be pumped 25-40 times to bleed all the pressure from the ABS accumulator
Tech A says pressure is being tested at the antilock braking system (ABS) modulator valve. Tech B says
pressure is being tested at the combination valve. Who is correct? ( pg. 51 )
,a. A only
b. B only
c. A & B
d. neither A or B - ANSWER B : B only
why : only tech B is correct. this is a combination valve
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 - ANSWER B : rear tires out of balance
why : rear tires out of balance would cause a vibration but not a noise
A vehicle comes back into the shop with a brake pulsation after having the rotors replaced. Which of the
following is the most likely cause?
a. over torqued lug nuts
b. under torqued lug nuts
c. sticking slides
d. incorrect brake fluid installed - ANSWER A : over torqued lug nuts
why : a wheel torque that is too tight could wrap the rotors. this could result in pedal pulsation
the brake warning lamp illustrated in the figure does not illuminate when the parking brake is applied. It
operates normally otherwise. Which of the following could be the cause? ( pg. 52 )
a. an open ground at the parking brake switch
b. an open ground at the master cylinder
c. an open fuse 11
d. an open engine starter fuse - ANSWER A : an open ground at the parking brake switch
why : an open ground at the parking brake switch would prevent the light from illuminating when the
parking break is activated
,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 - ANSWER 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
Which of the following could cause excessive noise braking?
a. worn wheel cylinders
b. worn caliper pistons
c. seized caliper slides
d. missing clips - ANSWER D : missing clips
why : missing anti-rattle clips could cause excessive noise while braking
A vehicle equipped with a "hill holding" option has an ABS code. Which tool would most likely be used
to check the wheel speed sensor?
a. AC volt meter
b. Ohm meter
c. Scan tool
d. Ammeter - ANSWER C : scan tool
why : a scan tool or oscilloscope can be used to test a signal from a digital when speed sensor
The brake system has a soft, sinking pedal with the engine running. The brake fluid level is at the correct
height. Which of the following could be the cause?
a. a restricted vacuum hose
b. a leaking master cylinder
c. a bypassing master cylinder
, d. a stuck open vacuum check valve - ANSWER C : a bypassing master cylinder
why : a bypassing master cylinder would cause a low pedal and would not cause a loss of fluid
Technician A says the pins should be driven in with a brass hammer. Technician B says the pins should be
lubricated with brake fluid. Who is correct? ( pg. 47 )
a. A
b. B
c. A & B
d. neither A OR B - ANSWER D : neither A OR B
why : neither technician is correct. this style of pin should be installed with a torx or hex head socket
Technician A says a hydro-boost system can use the power steering pump to operate the booster.
Technician B says a hydro-boost system can use engine vacuum to operate the booster. Who is correct? (
pg. 47 )
a. A
b. B
c. A & B
d. neither A & B - ANSWER A : only A
why : only tech A is correct. a hydro-boost system uses hydraulic pressure to create boost
A disc brake caliper is dragging. All of the following could be the cause EXCEPT
a. binding pins
b. sticking piston
c. binding caliper
d. worn brake pads - ANSWER D : worn brake pads
why : worn brake pads will not cause the brakes to drag
Which operation is being performed in the illustration? ( pg. 48 )
a. wheel cylinder bleeding
b. brake caliper bleeding
ASE BRAKES A5 TEST ( EXAM 2 ) QUESTIONS AND VERIFIED ANSWERS| 100%
CORRECT| GRADE A+ |100% PASS
A drum is chattering on the brake lathe. This could be a result of
a. failure to install the dampening belt
b. cutting too slowly
c. dull cutting blades
d. cutting speed too fast - ANSWER A : failure to install the dampening belt
why : a missing dampening belt could cause the drum to vibrate while on the lathe. this vibration can
cause the drum to bounce on the cutting tip and make a chattering noise
A vehicle equipped with a hydro-boost brake system has a hard pedal with little braking action. Which of
the following could be the cause?
a. low brake fluid
b. air in the brake fluid
c. low power steering fluid
d. an overtightened power steering belt - ANSWER C : low power steering fluid
why : low power steering fluid can cause the booster to provide very little if any boost
The technician is preparing to do a break job on a vehicle equipped with integral ABS. Which of the
following should be done?
a. pump the pedal 25-40 times
b. remove the fuses for the ABS controller
c. apply the parking brake
d. remove the fuse for the ignition system - ANSWER A : pump the pedal 25-40 times
why : the pedal should be pumped 25-40 times to bleed all the pressure from the ABS accumulator
Tech A says pressure is being tested at the antilock braking system (ABS) modulator valve. Tech B says
pressure is being tested at the combination valve. Who is correct? ( pg. 51 )
,a. A only
b. B only
c. A & B
d. neither A or B - ANSWER B : B only
why : only tech B is correct. this is a combination valve
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 - ANSWER B : rear tires out of balance
why : rear tires out of balance would cause a vibration but not a noise
A vehicle comes back into the shop with a brake pulsation after having the rotors replaced. Which of the
following is the most likely cause?
a. over torqued lug nuts
b. under torqued lug nuts
c. sticking slides
d. incorrect brake fluid installed - ANSWER A : over torqued lug nuts
why : a wheel torque that is too tight could wrap the rotors. this could result in pedal pulsation
the brake warning lamp illustrated in the figure does not illuminate when the parking brake is applied. It
operates normally otherwise. Which of the following could be the cause? ( pg. 52 )
a. an open ground at the parking brake switch
b. an open ground at the master cylinder
c. an open fuse 11
d. an open engine starter fuse - ANSWER A : an open ground at the parking brake switch
why : an open ground at the parking brake switch would prevent the light from illuminating when the
parking break is activated
,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 - ANSWER 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
Which of the following could cause excessive noise braking?
a. worn wheel cylinders
b. worn caliper pistons
c. seized caliper slides
d. missing clips - ANSWER D : missing clips
why : missing anti-rattle clips could cause excessive noise while braking
A vehicle equipped with a "hill holding" option has an ABS code. Which tool would most likely be used
to check the wheel speed sensor?
a. AC volt meter
b. Ohm meter
c. Scan tool
d. Ammeter - ANSWER C : scan tool
why : a scan tool or oscilloscope can be used to test a signal from a digital when speed sensor
The brake system has a soft, sinking pedal with the engine running. The brake fluid level is at the correct
height. Which of the following could be the cause?
a. a restricted vacuum hose
b. a leaking master cylinder
c. a bypassing master cylinder
, d. a stuck open vacuum check valve - ANSWER C : a bypassing master cylinder
why : a bypassing master cylinder would cause a low pedal and would not cause a loss of fluid
Technician A says the pins should be driven in with a brass hammer. Technician B says the pins should be
lubricated with brake fluid. Who is correct? ( pg. 47 )
a. A
b. B
c. A & B
d. neither A OR B - ANSWER D : neither A OR B
why : neither technician is correct. this style of pin should be installed with a torx or hex head socket
Technician A says a hydro-boost system can use the power steering pump to operate the booster.
Technician B says a hydro-boost system can use engine vacuum to operate the booster. Who is correct? (
pg. 47 )
a. A
b. B
c. A & B
d. neither A & B - ANSWER A : only A
why : only tech A is correct. a hydro-boost system uses hydraulic pressure to create boost
A disc brake caliper is dragging. All of the following could be the cause EXCEPT
a. binding pins
b. sticking piston
c. binding caliper
d. worn brake pads - ANSWER D : worn brake pads
why : worn brake pads will not cause the brakes to drag
Which operation is being performed in the illustration? ( pg. 48 )
a. wheel cylinder bleeding
b. brake caliper bleeding
