T4 ASE BRAKES (MEDIUM/HEAVY
DUTY BRAKES) EXAM
Spark plugs are being replaced on a v6 engine. Which of the following should be performed before
removing the boot? - ANS -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? - ANS -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? -
ANS -Tech A
Incorrect valve timing could be caused by... - ANS -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? - ANS -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? - ANS -Tech A only
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... - ANS -Voltage regulator
A dirty cabin air filter can cause... - ANS -A musty smelling cabin
Define the term stroke - ANS -Distance the piston travels from TDC (top dead center) to BDC (bottom
dead center)
DUTY BRAKES) EXAM
Spark plugs are being replaced on a v6 engine. Which of the following should be performed before
removing the boot? - ANS -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? - ANS -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? -
ANS -Tech A
Incorrect valve timing could be caused by... - ANS -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? - ANS -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? - ANS -Tech A only
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... - ANS -Voltage regulator
A dirty cabin air filter can cause... - ANS -A musty smelling cabin
Define the term stroke - ANS -Distance the piston travels from TDC (top dead center) to BDC (bottom
dead center)
