SOS MECHANIC CERTIFICATE –
ELECTRICAL EXAM QUESTIONS AND
ANSWERS LATEST UPDATE.
1. After installing a new battery how long should you wait to allow for pcm
time ANS >>> no need to wait
2. As blower motor speed decreases the voltage drop across the resistance
block. .... increases
3. What should you do first when replacing junction block or fuse? ANS >>>
https://www.stuvia.com/user/CULTIVATED 1/
10
, Unlock the battery ground cable
4. The polarity of the voltage applied to the electromagnetic coils of an actual
working DC motor is.... ANS >>> a commutator
5. When performing a volt drop test the volt meter setting should be set to the
following.. ANS >>> 3 volts
6. The symbol at the RIGHT represents..... ANS >>> a relay
7. Which device is used to monitor throttle position on the computer ANS
>>> poten- tiometer
8. A reading of .8 volts on the volt meter #2 would indicate ...... excessive
resistance
9. In a conventional wiring diagram a dot at the enter section ANS >>> Splice
10. After replacement of a defective blower motor the teen found motor spins
but no air? ANS >>> reversed polarity to the motor
https://www.stuvia.com/user/CULTIVATED 2/
10
ELECTRICAL EXAM QUESTIONS AND
ANSWERS LATEST UPDATE.
1. After installing a new battery how long should you wait to allow for pcm
time ANS >>> no need to wait
2. As blower motor speed decreases the voltage drop across the resistance
block. .... increases
3. What should you do first when replacing junction block or fuse? ANS >>>
https://www.stuvia.com/user/CULTIVATED 1/
10
, Unlock the battery ground cable
4. The polarity of the voltage applied to the electromagnetic coils of an actual
working DC motor is.... ANS >>> a commutator
5. When performing a volt drop test the volt meter setting should be set to the
following.. ANS >>> 3 volts
6. The symbol at the RIGHT represents..... ANS >>> a relay
7. Which device is used to monitor throttle position on the computer ANS
>>> poten- tiometer
8. A reading of .8 volts on the volt meter #2 would indicate ...... excessive
resistance
9. In a conventional wiring diagram a dot at the enter section ANS >>> Splice
10. After replacement of a defective blower motor the teen found motor spins
but no air? ANS >>> reversed polarity to the motor
https://www.stuvia.com/user/CULTIVATED 2/
10
