T4 BRAKES ASE ACTUAL EXAM WITH QUESTIONS AND
ANSWERS, GRADE A+
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
D. governor cut out pressure - ANSWER B. wrong linings installed
which of the following could cause one brake on a truck to wear faster than the
others?
A. mismatched service brake chambers
B. mismatched parking chambers
C. low air pressure in service tanks
D. governor cut out too low - ANSWER A. mismatched service chambers
what force is used to apply the foundation brake wheel cylinders?
A. hydraulic from the steering reservoir
B. mechanical
C. electrical
D. hydraulic from the master cylinder - ANSWER D.
, there's an audible air leak from under the dash when the foot valve is applied.
technician A says the double check valve may be faulty. Tech B says the single
check valve may be faulty. who's correct? - ANSWER Tech A only
on a straight truck equipped with air brake, the secondary tank pressure gauge
falls to zero when the wet tank air is drained. Tech A says the one way check valve
is faulty, Tech B says the foot valve may be faulty. Who's correct? - ANSWER Tech
A only. one way check valve protects secondary tank
A loose wheel bearing adjustment can cause a faulty wheel speed sensor and a
wheel speed sensor code - ANSWER
Air dryer purges too often. Tech A says the air dryer delivery check Valve may be
faulty. Tech B says a leaking wet tank could be the cause. Who's correct? -
ANSWER C. Both Techs.
The safety valve releases on the air tank. Which is the most likely cause?
A. plugged line from the supply tank to governor.
B. faulty tractor protection valve
C. stuck spitter on the air drier
D. faulty secondary tank - ANSWER A. if the line was plugged, the governor
would not unload the compressor
A truck with hydraulic disc/drum brakes has a high firm pedal with poor stopping.
what could be the cause? - ANSWER The brake linings are glazed! Glazed brake
linings will allow the pedal to feel high and firm with no stopping power
ANSWERS, GRADE A+
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
D. governor cut out pressure - ANSWER B. wrong linings installed
which of the following could cause one brake on a truck to wear faster than the
others?
A. mismatched service brake chambers
B. mismatched parking chambers
C. low air pressure in service tanks
D. governor cut out too low - ANSWER A. mismatched service chambers
what force is used to apply the foundation brake wheel cylinders?
A. hydraulic from the steering reservoir
B. mechanical
C. electrical
D. hydraulic from the master cylinder - ANSWER D.
, there's an audible air leak from under the dash when the foot valve is applied.
technician A says the double check valve may be faulty. Tech B says the single
check valve may be faulty. who's correct? - ANSWER Tech A only
on a straight truck equipped with air brake, the secondary tank pressure gauge
falls to zero when the wet tank air is drained. Tech A says the one way check valve
is faulty, Tech B says the foot valve may be faulty. Who's correct? - ANSWER Tech
A only. one way check valve protects secondary tank
A loose wheel bearing adjustment can cause a faulty wheel speed sensor and a
wheel speed sensor code - ANSWER
Air dryer purges too often. Tech A says the air dryer delivery check Valve may be
faulty. Tech B says a leaking wet tank could be the cause. Who's correct? -
ANSWER C. Both Techs.
The safety valve releases on the air tank. Which is the most likely cause?
A. plugged line from the supply tank to governor.
B. faulty tractor protection valve
C. stuck spitter on the air drier
D. faulty secondary tank - ANSWER A. if the line was plugged, the governor
would not unload the compressor
A truck with hydraulic disc/drum brakes has a high firm pedal with poor stopping.
what could be the cause? - ANSWER The brake linings are glazed! Glazed brake
linings will allow the pedal to feel high and firm with no stopping power
