ASE Brakes T4 Practice Test #1 ACTUAL EXAM
QUESTIONS WITH COMPLETE SOLUTION) (MULTIPLE
CHOICES) (A+ GRADED 100% VERIFIED) LATEST
VERSION 2025
Which of the following could cause the brakes on a truck to wear too fast?
A. Glazed Drums
B. Wrong linings installed
C. Low air pressure in the service tanks
D. Governor cut-out pressure too high - (ANSWER)Answer A is incorrect. Glazed
drum linings are hard and do not wear. They also do not stop the truck.
Answer B is correct. The wrong lining for the application may be the problem.
Answer C is incorrect. Low air pressure in the tanks would not cause brake wear.
It may cause a low amount of reserve air in case of multiple brake applications.
Answer D is incorrect. High governor cut=out pressure may cause the safety valve
to open, but would not cause the brakes to wear too fast.
Which of the following could case one brake on a truck to wear faster than the
others?
A. Mismatched service brake chambers
B. Mismatched parking brake chambers
C. Low air pressure in the service tanks
D. Governor cut-out pressure too low - (ANSWER)Answer A is correct.
Mismatched brake service chambers would apply unequal brake application
pressure from side to side, which would cause one brake to wear faster.
,Answer B is incorrect. Mismatched parking brake chambers would not cause
brake wear. It would possibly allow the brake to roll when parked, because one
side could have insufficient parking brake application.
Answer C is incorrect. Low air pressure in the tanks would not cause brake wear.
It may cause a low amount of reserve air in case of multiple brake applications
Answer D is incorrect. Low governor cut-out pressure may cause an inadequate
amount of air in reserve but would not cause the brake to wear too fast.
There is an audible air leak from under the dash when the foot valve is applied.
Technician A says the double-check valve may be faulty. Technician B says the
single-check valve may be
faulty. Who is correct? - (ANSWER)A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer A is correct. A leaking double check valve could allow air to flow to the
foot valve and out the open exhaust
Answer B is incorrect. Single check valves are used to protect the tanks. They do
not cause an air leak when the brakes are applied.
Answer C is incorrect. Technician B is incorrect.
Answer D is incorrect. Technician A is correct.
On a straight truck equipped with air brakes, the secondary tank pressure gauge
falls to zero when she wet air tank is drained. Technician A says the one-way
check valve may be faulty.
, Technician B says the foor valve may be faulty. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B - (ANSWER)Answer A is correct. The one way check valve
should protect the secondary tank. The check valve is leaking.
Answer B is incorrect. The foot valve does not separate the wet and secondary
tanks.
Answer C is incorrect. Technician B is incorrect.
Answer D is incorrect. Technician A is correct.
Which of the following could set an antilock braking system (ABS) wheel speed
sensor code:
A. Faulty modulator hold solenoid
B. Faulty modulator release solenoid
C. Incorrect wheel bearing adjustment
D. Incorrect brake adjustment - (ANSWER)Answer A is incorrect. A faulty solenoid
would not cause a wheel speed sensor code. It could cause a modulator valve
code.
Answer B is incorrect. A faulty solenoid would not cause a wheel speed sensor
code. It could cause a modulator valve code
Answer C is correct. A loose wheel bearing adjustment can cause a faulty wheel
speed sensor and a wheel speed sensor code.
QUESTIONS WITH COMPLETE SOLUTION) (MULTIPLE
CHOICES) (A+ GRADED 100% VERIFIED) LATEST
VERSION 2025
Which of the following could cause the brakes on a truck to wear too fast?
A. Glazed Drums
B. Wrong linings installed
C. Low air pressure in the service tanks
D. Governor cut-out pressure too high - (ANSWER)Answer A is incorrect. Glazed
drum linings are hard and do not wear. They also do not stop the truck.
Answer B is correct. The wrong lining for the application may be the problem.
Answer C is incorrect. Low air pressure in the tanks would not cause brake wear.
It may cause a low amount of reserve air in case of multiple brake applications.
Answer D is incorrect. High governor cut=out pressure may cause the safety valve
to open, but would not cause the brakes to wear too fast.
Which of the following could case one brake on a truck to wear faster than the
others?
A. Mismatched service brake chambers
B. Mismatched parking brake chambers
C. Low air pressure in the service tanks
D. Governor cut-out pressure too low - (ANSWER)Answer A is correct.
Mismatched brake service chambers would apply unequal brake application
pressure from side to side, which would cause one brake to wear faster.
,Answer B is incorrect. Mismatched parking brake chambers would not cause
brake wear. It would possibly allow the brake to roll when parked, because one
side could have insufficient parking brake application.
Answer C is incorrect. Low air pressure in the tanks would not cause brake wear.
It may cause a low amount of reserve air in case of multiple brake applications
Answer D is incorrect. Low governor cut-out pressure may cause an inadequate
amount of air in reserve but would not cause the brake to wear too fast.
There is an audible air leak from under the dash when the foot valve is applied.
Technician A says the double-check valve may be faulty. Technician B says the
single-check valve may be
faulty. Who is correct? - (ANSWER)A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer A is correct. A leaking double check valve could allow air to flow to the
foot valve and out the open exhaust
Answer B is incorrect. Single check valves are used to protect the tanks. They do
not cause an air leak when the brakes are applied.
Answer C is incorrect. Technician B is incorrect.
Answer D is incorrect. Technician A is correct.
On a straight truck equipped with air brakes, the secondary tank pressure gauge
falls to zero when she wet air tank is drained. Technician A says the one-way
check valve may be faulty.
, Technician B says the foor valve may be faulty. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B - (ANSWER)Answer A is correct. The one way check valve
should protect the secondary tank. The check valve is leaking.
Answer B is incorrect. The foot valve does not separate the wet and secondary
tanks.
Answer C is incorrect. Technician B is incorrect.
Answer D is incorrect. Technician A is correct.
Which of the following could set an antilock braking system (ABS) wheel speed
sensor code:
A. Faulty modulator hold solenoid
B. Faulty modulator release solenoid
C. Incorrect wheel bearing adjustment
D. Incorrect brake adjustment - (ANSWER)Answer A is incorrect. A faulty solenoid
would not cause a wheel speed sensor code. It could cause a modulator valve
code.
Answer B is incorrect. A faulty solenoid would not cause a wheel speed sensor
code. It could cause a modulator valve code
Answer C is correct. A loose wheel bearing adjustment can cause a faulty wheel
speed sensor and a wheel speed sensor code.
