Auto tech Electrical Section exam 3 practice
1. Which one of these would NOT be a diagnostic step A) Check the
when diagnosing a " no crank " customer concern ? condition of the engine
A) Check the condition of the engine oil oil
B) Check operation of the theft deterrent systems
C) Check the battery with a load test
D) Test for proper operation of the starter enable relay
2. Two technicians are discussing what could be the
cause of slow cranking and excessive current draw Both Technicians
. Technician A says that an engine mechanical fault
could be the cause . Technician B says that the starter
motor could be binding or defective Which technician
is correct ?
3. A V - 6 is being checked for starter amperage draw .
The initial surge current was about 210 amperes and Technician B
about 160 amperes during cranking . Technician A says
the starter is defective and should be replaced because
the current flow exceeds 200 amperes . Technician B
says this is normal current draw for a starter motor on
a V - 6 engine . Which technician is correct ?
4. What is the first step for removing a starter ?
A) Hoist the vehicle C) Disconnect the battery
B) Disconnect the battery positive cable negative cable
C) Disconnect the battery negative cable
D) Remove the battery cable from the starter
5. Technician A says that a discharged battery ( lower
than normal battery voltage ) can cause solenoid click- Both Technicians
ing . Technician B says that a discharged battery or
, Auto tech Electrical Section exam 3 practice
dirty ( corroded ) battery cables can cause solenoid
clicking . Which technician is correct ?
6. Slow cranking by the starter can be caused by all of D) An open neutral safety
these EXCEPT switch
A) A low or discharged battery
B) Corroded or dirty battery cables
C) Engine mechanical problems
D) An open neutral safety switch
7. Bench testing of a starter should be done D) Both a and b
A) After reassembling an old starter
B) Before installing a new starter
C) After removing the old starter
D) Both a and b
8. If the clearance between the starter pinion and the A) the starter produces a
engine fly wheel is too great, high - pitched whine dur-
A) the starter produces a high - pitched whine during ing cranking
cranking
B) the starter produces a high - pitched whine after the
engine starts
C) the starter drive does not rotate at all
D) the solenoid does not engage the starter drive unit
9. A technician connects one lead of a digital voltmeter Technician A
to the positive ( + ) terminal of the battery and the
other meter lead to the battery terminal ( B ) of the
starter solenoid and then cranks the engine . During
cranking , the voltmeter displays a read ing of 878
millivolts . Technician A says that this reading indicates
that the positive battery cable has too high resistance
, Auto tech Electrical Section exam 3 practice
. Technician B says that this reading indicates that the
starter is defective . Which technician is correct ?
10. After installing the starter , the technician should per- C) Both a and b
form which of the following ?
A) Attach the negative battery cable
B) Check the starter for proper operation
C) Perform a starter voltage drop test before starting
the engine
C) Both a and b
11. A vehicle does not crank fast enough to start. Tech- Both technicians
nician A says that the battery could be discharged or
defective. Technician B says that the negative cable
could be loose at the battery. Who is right?
12. Technician A says that the cranking circuit should be Technician A
tested for proper amperage draw. Technician B says
that an open in the control circuit will not prevent
starter motor operation. Who is right?
13. If the starter "whines" when engaged, which of these D)Worn or defective
is a possible cause? starter drive
A) Open pull-in winding
B) Defective solenoid
C) Worn leather armature brake
D) Worn or defective starter drive
14. Which of these tools is used to determine the starter C) Voltmeter
circuit voltage drop test?
A) Ammeter
B) Meg ohmmeter
1. Which one of these would NOT be a diagnostic step A) Check the
when diagnosing a " no crank " customer concern ? condition of the engine
A) Check the condition of the engine oil oil
B) Check operation of the theft deterrent systems
C) Check the battery with a load test
D) Test for proper operation of the starter enable relay
2. Two technicians are discussing what could be the
cause of slow cranking and excessive current draw Both Technicians
. Technician A says that an engine mechanical fault
could be the cause . Technician B says that the starter
motor could be binding or defective Which technician
is correct ?
3. A V - 6 is being checked for starter amperage draw .
The initial surge current was about 210 amperes and Technician B
about 160 amperes during cranking . Technician A says
the starter is defective and should be replaced because
the current flow exceeds 200 amperes . Technician B
says this is normal current draw for a starter motor on
a V - 6 engine . Which technician is correct ?
4. What is the first step for removing a starter ?
A) Hoist the vehicle C) Disconnect the battery
B) Disconnect the battery positive cable negative cable
C) Disconnect the battery negative cable
D) Remove the battery cable from the starter
5. Technician A says that a discharged battery ( lower
than normal battery voltage ) can cause solenoid click- Both Technicians
ing . Technician B says that a discharged battery or
, Auto tech Electrical Section exam 3 practice
dirty ( corroded ) battery cables can cause solenoid
clicking . Which technician is correct ?
6. Slow cranking by the starter can be caused by all of D) An open neutral safety
these EXCEPT switch
A) A low or discharged battery
B) Corroded or dirty battery cables
C) Engine mechanical problems
D) An open neutral safety switch
7. Bench testing of a starter should be done D) Both a and b
A) After reassembling an old starter
B) Before installing a new starter
C) After removing the old starter
D) Both a and b
8. If the clearance between the starter pinion and the A) the starter produces a
engine fly wheel is too great, high - pitched whine dur-
A) the starter produces a high - pitched whine during ing cranking
cranking
B) the starter produces a high - pitched whine after the
engine starts
C) the starter drive does not rotate at all
D) the solenoid does not engage the starter drive unit
9. A technician connects one lead of a digital voltmeter Technician A
to the positive ( + ) terminal of the battery and the
other meter lead to the battery terminal ( B ) of the
starter solenoid and then cranks the engine . During
cranking , the voltmeter displays a read ing of 878
millivolts . Technician A says that this reading indicates
that the positive battery cable has too high resistance
, Auto tech Electrical Section exam 3 practice
. Technician B says that this reading indicates that the
starter is defective . Which technician is correct ?
10. After installing the starter , the technician should per- C) Both a and b
form which of the following ?
A) Attach the negative battery cable
B) Check the starter for proper operation
C) Perform a starter voltage drop test before starting
the engine
C) Both a and b
11. A vehicle does not crank fast enough to start. Tech- Both technicians
nician A says that the battery could be discharged or
defective. Technician B says that the negative cable
could be loose at the battery. Who is right?
12. Technician A says that the cranking circuit should be Technician A
tested for proper amperage draw. Technician B says
that an open in the control circuit will not prevent
starter motor operation. Who is right?
13. If the starter "whines" when engaged, which of these D)Worn or defective
is a possible cause? starter drive
A) Open pull-in winding
B) Defective solenoid
C) Worn leather armature brake
D) Worn or defective starter drive
14. Which of these tools is used to determine the starter C) Voltmeter
circuit voltage drop test?
A) Ammeter
B) Meg ohmmeter
