ASE Brakes T4 Practice Test -1 QUESTIONS WITH ANSWERS

ASE Brakes T4 Practice Test #1
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QUESTIONS WITH ANSWERS |\ |\




Which of the following could cause the brakes on a truck
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to wear too fast?
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A. Glazed Drums
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B. Wrong linings installed
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C. Low air pressure in the service tanks
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D. Governor cut-out pressure too high - CORRECT
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ANSWERS ✔✔Answer A is incorrect. Glazed drum linings|\ |\ |\ |\ |\ |\ |\ |\



are hard and do not wear. They also do not stop the truck.
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Answer B is correct. The wrong lining for the application
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may be the problem.
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Answer C is incorrect. Low air pressure in the tanks would
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not cause brake wear. It may cause a low amount of
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reserve air in case of multiple brake applications.
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Answer D is incorrect. High governor cut=out pressure
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may cause the safety valve to open, but would not cause
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the brakes to wear too fast.
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Which of the following could case one brake on a truck to
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wear faster than the others?
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A. Mismatched service brake chambers
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B. Mismatched parking brake chambers
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,C. Low air pressure in the service tanks
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D. Governor cut-out pressure too low - CORRECT
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ANSWERS ✔✔Answer A is correct. Mismatched brake |\ |\ |\ |\ |\ |\ |\



service chambers would apply unequal brake application
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pressure from side to side, which would cause one brake
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to wear faster.
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Answer B is incorrect. Mismatched parking brake
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chambers would not cause brake wear. It would possibly |\ |\ |\ |\ |\ |\ |\ |\ |\



allow the brake to roll when parked, because one side
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could have insufficient parking brake application.
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Answer C is incorrect. Low air pressure in the tanks would
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not cause brake wear. It may cause a low amount of
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reserve air in case of multiple brake applications
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Answer D is incorrect. Low governor cut-out pressure may
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cause an inadequate amount of air in reserve but would
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not cause the brake to wear too fast.
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There is an audible air leak from under the dash when the
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foot valve is applied. Technician A says the double-check
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valve may be faulty. Technician B says the single-check
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valve may be |\ |\




faulty. Who is correct? - CORRECT ANSWERS ✔✔A. A only
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B. B only
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C. Both A and B
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D. Neither A nor B
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,Answer A is correct. A leaking double check valve could
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allow air to flow to the foot valve and out the open
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exhaust
Answer B is incorrect. Single check valves are used to
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protect the tanks. They do not cause an air leak when the
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brakes are applied.
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Answer C is incorrect. Technician B is incorrect.
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Answer D is incorrect. Technician A is correct.
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On a straight truck equipped with air brakes, the
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secondary tank pressure gauge falls to zero when she wet |\ |\ |\ |\ |\ |\ |\ |\ |\



air tank is drained. Technician A says the one-way check
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valve may be faulty. |\ |\ |\




Technician B says the foor valve may be faulty. Who is |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



correct?
A. A only
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B. B only
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C. Both A and B
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D. Neither A nor B - CORRECT ANSWERS ✔✔Answer A is
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correct. The one way check valve should protect the
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secondary tank. The check valve is leaking. |\ |\ |\ |\ |\ |\




Answer B is incorrect. The foot valve does not separate
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the wet and secondary tanks.
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Answer C is incorrect. Technician B is incorrect.
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Answer D is incorrect. Technician A is correct.
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, Which of the following could set an antilock braking
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system (ABS) wheel speed sensor code:|\ |\ |\ |\ |\




A. Faulty modulator hold solenoid
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B. Faulty modulator release solenoid
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C. Incorrect wheel bearing adjustment
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D. Incorrect brake adjustment - CORRECT ANSWERS
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✔✔Answer A is incorrect. A faulty solenoid would not |\ |\ |\ |\ |\ |\ |\ |\ |\



cause a wheel speed sensor code. It could cause a
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modulator valve code. |\ |\




Answer B is incorrect. A faulty solenoid would not cause a
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wheel speed sensor code. It could cause a modulator
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valve code |\




Answer C is correct. A loose wheel bearing adjustment
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can cause a faulty wheel speed sensor and a wheel speed
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sensor code.
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Answer D is incorrect. An incorrect brake adjustment may
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cause a dragging brake but would not cause a wheel
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speed sensor code |\ |\




The air drier purged too often. Technician A says the air
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drier delivery check valve may be leaking. Technician B
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says a leaking wet tank could be the cause. Who is
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correct?
A. A only
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