Questions and answers latest update | verified answers
Technician A says that when pressure testing a radiator cap, a special adapter is
needed. Technician B says the best way to check thermostat operation is while it is
in the engine. Who is right? - ANSWER Tech A
A technician is checking resistance in an engine's spark plug wires using an
ohmmeter. A general rule is to replace a wire if resistance is over: - ANSWER
30,000 ohms
Technician A says that in an ignition system, the voltage supplied to the coil during
starting is battery voltage. Technician B says the coil uses electromagnetic induction
to create high voltage. Who is right? - ANSWER Both techs
A front wheel drive vehicle with an automatic transaxle has excessive vibration.
Technician A says that the vibration could be caused by worn engine/transaxle
mounts. Technician B says that the vibration could be caused by a misaligned
engine/transaxle subframe. Who is right? - ANSWER Both techs
A technician suspects that a faulty camshaft sensor causes a driveability complaint.
The sensor is equipped with a three-wire connector. What type of sensor is this? -
ANSWER a Hall effect type
All of the following can cause a problem in the Hydro-boost system EXCEPT:
A. loose power steering pump belt
B. leaking power steering hoses
C. low power steering pump pressure
D. leaking check valve - ANSWER D
Technician A says that if a wire is getting too hot, it's a sign of higher-than-normal
current flowing through. Technician B says the wire would heat up if some of the
individual strands are broken inside the wire insulation. Who is right? - ANSWER
Both techs
Technician A says electrical connectors can be disconnected with the ignition switch
ON, as long as the technician is using a ground strap. Technician B says when
welding on a vehicle, the technician needs to use a static wrist strap. Who is right? -
ANSWER Neither
Technician A says the thermostat maintains maximum engine operating
temperature. Technician B says if the engine continuously runs hot, install a cooler
thermostat. Who is right? - ANSWER Neither
, A vehicle equipped with a MacPherson strut suspension is in the repair shop for new
tires and an alignment. The technician noticed that the vehicle has some play in the
lift-side inner tie-rod. What should the technician tell the customer?
A. It is not a problem that will affect alignment.
B. He can align the front end, but the tie-rod should be replaced soon
C. The inner tie-rod needs to be replaced before an alignment can be performed
D. He can set the vehicle alignment to compensate for the play in the inner tie-rod -
ANSWER C.
An engine is losing coolant, yet has no external leaks. Technician A says to run the
engine and see if there is white smoke out of the exhaust. Technician B says to find
out if the engine's emission system uses a catalytic converter before running the test
above. Who is right? - ANSWER both
LED bulbs can remain effective for up to how long depending on the size of the bulb
and the conditions to which the bulb is exposed? - ANSWER 15000 hours
All of the following should be performed during a preliminary transmission inspection
EXCEPT:
A. check transmission fluid level
B. visually check wiring and electrical connections
C. check the condition of the filter
D. check for fluid leaks - ANSWER C
A smeary film on the windshield is an indication of:
A. evaporator core leak
B. water valve leak
C. heater core leak
D. restricted drain hose - ANSWER C
Technician A says that all power should be removed from a circuit before testing the
circuit with an ammeter. Technician B says that all power should be removed from a
circuit before testing the circuit with an ohmmeter. Who is right? - ANSWER Tech B
A rear wheel drive vehicle with a one-piece driveshaft has excessive driveshaft
vibration during low speed acceleration. Which of the following is the MOST likely
cause?
A. binding U-joints
B. excessive driveshaft runout
C. driveshaft out of balance
D. improper driveshaft angle - ANSWER D
When replacing an integral hub/bearing assembly on a front wheel drive vehicle, all
of the following must be removed EXCEPT:
A. brake rotor
B. brake caliper
C. steering knuckle
D. wheel - ANSWER C