Practice Test
The tread of a tire is worn in the center and not on the outer shoulders. Technician A says this is caused
by an improper wheel alignment angle. Technician B says this is caused by over inflating the tire. Who is
correct? - An over-inflated tire wears the center of the tire's tread. Technician B is correct.
A vehicle with power assist brakes has a hard brake pedal with little stopping power. Which of these is
the MOST likely cause of this condition? - A faulty brake booster will result in a hard brake pedal.
Which of the following is causing an engine's exhaust to be white gray color? - White exhaust is an
indication that coolant is entering and burning in the combustion chamber. This is often caused by
overheating the engine, resulting in a warped cylinder head and faulty head gasket.
An automatic transmission's fluid is pink and milky. Technician A says this is caused by engine
overheating. Technician B says the transmission could have been overfilled and the fluid has become
aerated. Who is correct? - Neither technician is correct, the ATF is contaminated with coolant.
.
Two technicians are discussing the evaporator's function in an automotive air conditioning system. All of
these are true about the evaporator EXCEPT: - fA. It removes humidity from the air.
B. Refrigerant flows from the bottom to the top.
C. Refrigerant enters the evaporator as a liquid.
D. The refrigerant changes from a vapor to a liquid as it receives heat from the cabin air. (Correct
Answer)
A front wheel drive vehicle makes a clacking noise that only occurs while cornering. The technician
suspects a faulty front axle. Which of these is MOST likely the cause? - A faulty or worn outer CV
joint makes its most noise while cornering.
The engine of a vehicle will start, but is slow cranking. Technician A says there may be resistance in the
starter circuit. Technician B says to perform a voltage drop test to test for excessive resistance in the