A starter current draw test is being performed. Technician A says low current draw
may be caused by excessive resistance in the starter circuit. Technician B says high
current draw may be caused by an internal engine problem. Who is correct?
Both A and B
Technician A
Technician B
Neither A nor B - ANSWER✔✔Both A and B
The primary function of the EGR system is to reduce what?
,NOx
CO
HC
CO2 - ANSWER✔✔NOx
A growling noise is heard when the A/C compressor is disengaged. Which of the
following is the most likely cause?
The steering angle sensor must be calibrated in all of the following situations
except:
When making repairs to the steering linkage
During wheel balance and rotation
When replacing the steering wheel
When performing a wheel alignment - ANSWER✔✔During wheel balance and
rotation
Technician A says flat tappet lifters require a break-in period. Technician B says
flat tappet lifters should be checked for bleed-down using a special tool. Who is
correct?
,Technician A
Technician B
Both A and B
Neither A nor B - ANSWER✔✔Technician A
What color exhaust smoke indicates a potential internal coolant leak?
Blue
Gray
Black
White - ANSWER✔✔White
Most transmissions regulate pressure at approximately:
60 psi
80 psi
30 psi
70 psi - ANSWER✔✔60 psi
What type of sensor is an output shaft speed sensor?
Inductive pulse
Transducer
Reed switch
, Hall effect - ANSWER✔✔Inductive pulse
Reed Switch - ANSWER✔✔A reed switch is an electromagnetic switch used to
control the flow of electricity in a circuit.
Transducer - ANSWER✔✔Device that converts one form of energy to another
Inductive pulse - ANSWER✔✔is a device that uses the principle of
electromagnetic induction to detect or measure objects.
Technician A says a slight exhaust backpressure is normal and should not cause a
problem. Technician B says restrictions in the exhaust system cause exhaust
backpressure. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ANSWER✔✔C. Both A and B
The correct answer is C, both technicians are right. Different sized orifices and
pipes in the exhaust system will create an acceptable amount of exhaust
backpressure. Excessive restrictions, such as collapsed pipes, obstructions,
incorrect components, or excessive carbon buildup can cause too much
backpressure.
Technician A says to perform a compression test on a warm engine. Technician B
says an engine with low cylinder leakage readings could be OK as long as the
readings are the same or similar for each cylinder. Who is right?
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