SOS Mechanic Certificate – Electrical
UPDATED ACTUAL Exam Questions and
CORRECT Answers
After installing a new battery how long should you wait to allow for pcm time - CORRECT
ANSWER -no need to wait
As blower motor speed decreases the voltage drop across the resistance block.... - CORRECT
ANSWER -increases
What should you do first when replacing junction block or fuse? - CORRECT ANSWER -
Unlock the battery ground cable
The polarity of the voltage applied to the electromagnetic coils of an actual working DC motor
is.... - CORRECT ANSWER -a commutator
When performing a volt drop test the volt meter setting should be set to the following.. -
CORRECT ANSWER -3 volts
The symbol at the RIGHT represents..... - CORRECT ANSWER -a relay
Which device is used to monitor throttle position on the computer - CORRECT
ANSWER -potentiometer
A reading of .8 volts on the volt meter #2 would indicate..... - CORRECT ANSWER -
excessive resistance
In a conventional wiring diagram a dot at the enter section - CORRECT ANSWER -Splice
, After replacement of a defective blower motor the teen found motor spins but no air? -
CORRECT ANSWER -reversed polarity to the motor
Which piece of test equipment must be connected parallel - CORRECT ANSWER -Volt
meter
A vehicles blower motor only works on high..... - CORRECT ANSWER -blower resistor
The component D in the following - CORRECT ANSWER -lamp
Which one of the following component can be damaged by electrical discharge - CORRECT
ANSWER -all of the above
An am-meter should be connected in which of the following - CORRECT ANSWER -In
series with the load
Direct transmitter controlled switches of a component - CORRECT ANSWER -less
current, high frequency
The following symbol at the right - CORRECT ANSWER -Diode ->}-
A technician finds a horn relay that is stuck closed - CORRECT ANSWER -the horn is
constantly blowing
A fusable link can be tested with... - CORRECT ANSWER -all of the above
In the circuit below the left front + left rear turn signals - CORRECT ANSWER -excessive
resistance at point b
UPDATED ACTUAL Exam Questions and
CORRECT Answers
After installing a new battery how long should you wait to allow for pcm time - CORRECT
ANSWER -no need to wait
As blower motor speed decreases the voltage drop across the resistance block.... - CORRECT
ANSWER -increases
What should you do first when replacing junction block or fuse? - CORRECT ANSWER -
Unlock the battery ground cable
The polarity of the voltage applied to the electromagnetic coils of an actual working DC motor
is.... - CORRECT ANSWER -a commutator
When performing a volt drop test the volt meter setting should be set to the following.. -
CORRECT ANSWER -3 volts
The symbol at the RIGHT represents..... - CORRECT ANSWER -a relay
Which device is used to monitor throttle position on the computer - CORRECT
ANSWER -potentiometer
A reading of .8 volts on the volt meter #2 would indicate..... - CORRECT ANSWER -
excessive resistance
In a conventional wiring diagram a dot at the enter section - CORRECT ANSWER -Splice
, After replacement of a defective blower motor the teen found motor spins but no air? -
CORRECT ANSWER -reversed polarity to the motor
Which piece of test equipment must be connected parallel - CORRECT ANSWER -Volt
meter
A vehicles blower motor only works on high..... - CORRECT ANSWER -blower resistor
The component D in the following - CORRECT ANSWER -lamp
Which one of the following component can be damaged by electrical discharge - CORRECT
ANSWER -all of the above
An am-meter should be connected in which of the following - CORRECT ANSWER -In
series with the load
Direct transmitter controlled switches of a component - CORRECT ANSWER -less
current, high frequency
The following symbol at the right - CORRECT ANSWER -Diode ->}-
A technician finds a horn relay that is stuck closed - CORRECT ANSWER -the horn is
constantly blowing
A fusable link can be tested with... - CORRECT ANSWER -all of the above
In the circuit below the left front + left rear turn signals - CORRECT ANSWER -excessive
resistance at point b
