ASE certification study guide with
complete solutions
Spark plugs are being replaced on a v6 engine. Which of the following should be performed
before removing the boot? - Answer✔✔-Twist the boot 1/2 a turn
Technician A days that a positive crankcase ventilation (pvc) system reduces vehicle emissions.
Tech B says that a pvc system helps increase crankcase pressure. Who is correct? - Answer✔✔-
Tech A
Tech A says that secondary ignition wires should be inspected when replacing spark plugs. Tech
B says that if a new spark plug is dropped it can be used as long as the gap doesn't change. Who
is correct? - Answer✔✔-Tech A
Incorrect valve timing could be caused by... - Answer✔✔-Incorrect timing belt position
When measuring parallelism of a disc brake rotor, A technician measures 0.002" variation
beyond the specification. The next step is to? - Answer✔✔-Determine the minimum rotor
machine to thickness
Tech A says that disconnecting the negative battery cable may be required to disable the air bag
system. Tech B says that a self powered test light can be used to test air bag system
components. Who is correct? - Answer✔✔-Tech A only
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A vehicles battery prematurely fails. A charging system output test shows the alternator is
producing a constant 16.0 volts. This could indicate a failed... - Answer✔✔-Voltage regulator
A dirty cabin air filter can cause... - Answer✔✔-A musty smelling cabin
Define the term stroke - Answer✔✔-Distance the piston travels from TDC (top dead center) to
BDC (bottom dead center)
A vehicle is being checked for power steering leaks Technician A says that leaks can develop in
the fitting hoses and seals, Technician B says that the steering components should be observed
for leaks while a helper turns the steering wheel from side to side. Who is right? - Answer✔✔-
Both
Brake fluid must meet minimum standards set by... - Answer✔✔-Department of traffic (DOT)
A flexible rubber brake line is being inspected.
Technician A says small blisters in the rubber are acceptable if they are not leaking.
Technician B says that small cracks in the rubber require replacement of the hose.
Who is correct? - Answer✔✔-Technician B only
A technician is preforming a service on a vehicle there is a risk of splashing liquid. Technician A
says that regular safety glasses with side shields will work. Tech B says that goggles combined
with a face shield will provide adequate protection. Who is correct? - Answer✔✔-Tech B
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