2
T4 Delmar ASE practice test 3 with accurate solutions
|| || || || || || || ||
A new bearing fits loose on the spindle . What should the technician do?
|| || || || || || || || || || || || ||
A. Replace the spindle
|| || ||
B. Center punch the spindle to tighten the fit
|| || || || || || || ||
C. Install liquid bearing mount on the race to tighten the fit
|| || || || || || || || || || ||
D. Replace the hub
|| || ||
Correct Aswer is A: The spindle should be replaced
|| || || || || || || ||
A tractor-trailer combination has poor braking. Technician A says to apply the hand valve
|| || || || || || || || || || || || || ||
while rolling to ensure the trailer brakes are working. Technician B says to pull the trailer
|| || || || || || || || || || || || || || || ||
air knob(red) while rolling to ensure the trailer service brakes are working. Who is correct?
|| || || || || || || || || || || || || ||
A. A only || ||
B. B only || ||
C. Both A and B
|| || || ||
D. Neither A nor B
|| || || ||
Correct Answer is A: Only technician A is correct. This is a correct method to test the trailer
|| || || || || || || || || || || || || || || || ||
service brakes.
|| ||
When constant pressure is held on the service brake pedal on a truck with hydraulic brakes,
|| || || || || || || || || || || || || || || ||
it slowly falls to the floor. There are no external brakes fluid leaks. Which one of the
|| || || || || || || || || || || || || || || || ||
following could be the cause? || || || ||
A. Faulty brake booster
|| || ||
B. By-passing wheel cylinder
|| || ||
C. By-passing caliper piston seal
|| || || ||
D. Faulty master cylinder
|| || ||
Correct Answer is D: The fluid is by-passing inside the master cylinder
|| || || || || || || || || || ||
*Referring to the figure above, which of the following signals the air drier to purge.
|| || || || || || || || || || || || || ||
A. Compressor
||
B. Governor||
C. Air pressure warning device
|| || || ||
D. Safety valve
|| ||
Correct Answer is B: The governor sends a signal to the drier to purge at the same time that
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it sends a signal to the compressor to unload
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, 2
Maintenance records show air drier has blown the fuse for the heater three times, and the || || || || || || || || || || || || || || || ||
heater has been replaced twice. The most likely cause of the blown fuse is:
|| || || || || || || || || || || || ||
A. An open heater wire
|| || || ||
B. A shorted heater wire
|| || || ||
C. A shorted heater
|| || ||
D. A plugged purge valve
|| || || ||
Correct Answer is B: A shorted wire would blow the fuse|| || || || || || || || || ||
A truck equipped with hydraulic disc brakes exhibits excessive wear of the outer pad. Which
|| || || || || || || || || || || || || ||
of the following could be the cause?
|| || || || || || ||
A. Sticking caliper slides
|| || ||
B. Faulty pressure differential valve
|| || || ||
C. Faulty metering valve
|| || ||
D. Faulty proportioning valve
|| || ||
Correct Answer is A: Sticking caliper slides can cause dragging brakes and worn pads.
|| || || || || || || || || || || || ||
A driver inspection reports reveals a concern about noise while braking. Which of the
|| || || || || || || || || || || || || ||
following could be the cause? || || || ||
A. Excessively worn shoes
|| || ||
B. Worn slacks adjuster
|| || ||
C. Worn service chamber diaphragm
|| || || ||
D. Loose relay valve
|| || ||
Correct Answer is A: Excessively worn shoes can cause metal-to-metal contact and noise
|| || || || || || || || || || || ||
An air disc rotor is being measured for thickness variation. Technician A says to dial
|| || || || || || || || || || || || || || ||
indicators can be used. Technician B says an outside micrometer can be used. Who is
|| || || || || || || || || || || || || || ||
correct?
A. A only || ||
B. B only || ||
C. Both A and B
|| || || ||
D. Neither A nor B
|| || || ||
Correct Answer is C: Both technicians are correct. Thickness variation can be measured by
|| || || || || || || || || || || || || ||
setting to dial indicators across from each other and watching the needles. Another method
|| || || || || || || || || || || || || ||
is to measure the rotor thickness using an outside micrometer in approximately 12 places
|| || || || || || || || || || || || || ||
and compare the measurements.
|| || ||
T4 Delmar ASE practice test 3 with accurate solutions
|| || || || || || || ||
A new bearing fits loose on the spindle . What should the technician do?
|| || || || || || || || || || || || ||
A. Replace the spindle
|| || ||
B. Center punch the spindle to tighten the fit
|| || || || || || || ||
C. Install liquid bearing mount on the race to tighten the fit
|| || || || || || || || || || ||
D. Replace the hub
|| || ||
Correct Aswer is A: The spindle should be replaced
|| || || || || || || ||
A tractor-trailer combination has poor braking. Technician A says to apply the hand valve
|| || || || || || || || || || || || || ||
while rolling to ensure the trailer brakes are working. Technician B says to pull the trailer
|| || || || || || || || || || || || || || || ||
air knob(red) while rolling to ensure the trailer service brakes are working. Who is correct?
|| || || || || || || || || || || || || ||
A. A only || ||
B. B only || ||
C. Both A and B
|| || || ||
D. Neither A nor B
|| || || ||
Correct Answer is A: Only technician A is correct. This is a correct method to test the trailer
|| || || || || || || || || || || || || || || || ||
service brakes.
|| ||
When constant pressure is held on the service brake pedal on a truck with hydraulic brakes,
|| || || || || || || || || || || || || || || ||
it slowly falls to the floor. There are no external brakes fluid leaks. Which one of the
|| || || || || || || || || || || || || || || || ||
following could be the cause? || || || ||
A. Faulty brake booster
|| || ||
B. By-passing wheel cylinder
|| || ||
C. By-passing caliper piston seal
|| || || ||
D. Faulty master cylinder
|| || ||
Correct Answer is D: The fluid is by-passing inside the master cylinder
|| || || || || || || || || || ||
*Referring to the figure above, which of the following signals the air drier to purge.
|| || || || || || || || || || || || || ||
A. Compressor
||
B. Governor||
C. Air pressure warning device
|| || || ||
D. Safety valve
|| ||
Correct Answer is B: The governor sends a signal to the drier to purge at the same time that
|| || || || || || || || || || || || || || || || || || ||
it sends a signal to the compressor to unload
|| || || || || || || ||
, 2
Maintenance records show air drier has blown the fuse for the heater three times, and the || || || || || || || || || || || || || || || ||
heater has been replaced twice. The most likely cause of the blown fuse is:
|| || || || || || || || || || || || ||
A. An open heater wire
|| || || ||
B. A shorted heater wire
|| || || ||
C. A shorted heater
|| || ||
D. A plugged purge valve
|| || || ||
Correct Answer is B: A shorted wire would blow the fuse|| || || || || || || || || ||
A truck equipped with hydraulic disc brakes exhibits excessive wear of the outer pad. Which
|| || || || || || || || || || || || || ||
of the following could be the cause?
|| || || || || || ||
A. Sticking caliper slides
|| || ||
B. Faulty pressure differential valve
|| || || ||
C. Faulty metering valve
|| || ||
D. Faulty proportioning valve
|| || ||
Correct Answer is A: Sticking caliper slides can cause dragging brakes and worn pads.
|| || || || || || || || || || || || ||
A driver inspection reports reveals a concern about noise while braking. Which of the
|| || || || || || || || || || || || || ||
following could be the cause? || || || ||
A. Excessively worn shoes
|| || ||
B. Worn slacks adjuster
|| || ||
C. Worn service chamber diaphragm
|| || || ||
D. Loose relay valve
|| || ||
Correct Answer is A: Excessively worn shoes can cause metal-to-metal contact and noise
|| || || || || || || || || || || ||
An air disc rotor is being measured for thickness variation. Technician A says to dial
|| || || || || || || || || || || || || || ||
indicators can be used. Technician B says an outside micrometer can be used. Who is
|| || || || || || || || || || || || || || ||
correct?
A. A only || ||
B. B only || ||
C. Both A and B
|| || || ||
D. Neither A nor B
|| || || ||
Correct Answer is C: Both technicians are correct. Thickness variation can be measured by
|| || || || || || || || || || || || || ||
setting to dial indicators across from each other and watching the needles. Another method
|| || || || || || || || || || || || || ||
is to measure the rotor thickness using an outside micrometer in approximately 12 places
|| || || || || || || || || || || || || ||
and compare the measurements.
|| || ||
