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SOS MECHANIC CERTIFICATE - ELECTRICAL CURRENT EXAM
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SOS MECHANIC CERTIFICATE - ELECTRICALCURRENT EXAM
How long should you wait after inserting a new battery to allow for PCM time?
ANSWER: There is no need to wait.
As the blower motor speed lowers, the voltage drops across the resistance block....-
ANSWER rises.
What should you do first when changing a junction box or fuse? - ANSWER
Unlock the battery's ground cable.
The polarity of the voltage provided to the electromagnetic coils of a real working
DC motor is.... - Answer: a commutator.
When doing a volt drop test, the volt meter settings should be as follows. -
ANSWER: 3 volts
The symbol on the right represents.....- ANSWER a relay.
Which device is used to monitor the throttle position on the computer -
potentiometer
A reading of.8 volts on the volt meter #2 would suggest..... - ANSWER too much
resistance
In a typical wiring schematic, a dot at the entry section indicates a splice.
, After replacing a malfunctioning blower motor, the adolescent discovered that the
motor rotates but does not produce any air. - ANSWER reversed the polarity of the
motor.
Which piece of test equipment must be linked in parallel? ANSWER Volt meter
A vehicle's blower motor only operates on high..... - ANSWER Blower resistor
Component D in the following: ANSWER light
Which of the following components can be harmed by electrical discharge?
ANSWER: All of the above.
An ammeter should be attached to which of the following? - ANSWER In sequence
with the load.
Direct transmitter-controlled switches of a component - ANSWER low current,
high frequency
The symbol on the right is ANSWER Diode ->}-.
A technician discovers a horn relay that is stuck closed. The horn is constantly
sounding.
A fusable connection can be evaluated using... - Answer all of the above.
In the circuit below the left front + left rear turn signals, ANSWER excessive
resistance at point b.
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