mid term/exam electrical and mechanical
automotive
1. Current is being measured with the DVOM set to blow a fuse.
the 200 milliamp scale. The current flow
increases to 2.5 amps. The meter will:
2. In any electrical circuit there can be: voltage without current.
3. Silver is an excellent conductor. This means that silver a good carrier
of current
is: flow through a circuit.
4. Connecting a DVOM in reverse polarity when trying to show a
negative reading.
read current will:
5. Voltage in an automotive circuit: does not flow through
the circuit.
6. If a blower motor does not run, a good first at the hot side of the mo-
voltage check would be:
tor terminal.
7. A normal working circuit with one load will
up until the load, and 0
read full source voltage:
volts after the load.
8. With a wire conductor, the heavier the gauge, the: The less resistance
it has
9. The part of the circuit from the negative ground side.
terminal of the load to the ground is called:
10. A voltmeter is connected at a connector located
break, or open, in the
be- tween the power window motor and
ground connection.
ground. When the power window switch is
closed, the meter reads 13 volts. A possible
problem is a:
1/
36
, mid term/exam electrical and mechanical
automotive
11. A fan motor is in series with a resistor. The resistor gets in
proportion to the resis- hot when the fan motor is running. The
voltage drops tance of each load. across the motor and resistor
will read:
2/
36
, mid term/exam electrical and mechanical
automotive
12. Voltage measured across a turn signal bulb should be: full source
voltage.
13. An amplifier booster that draws 20 amps is increase the total
wired in parallel to the stereo system circuit on current of the circuit by
a vehicle. This will:
20 amps
.B Increase the total
resis- tance of the circuit
by 240 ohms. C.
decrease the to- tal
current of the circuit by
20 amps .D. increase
the circuit voltage by
2 volts.
14. A rear wiper circuit is ground-side switched. A voltage the rear
wiper is not reading at a connector on the ground side of the
load turned on. shows full source voltage. This likely means:
15. A flow chart says to run the fan motor and check for a voltage drop
between the
good connection between terminal #3 and the vehicle two points.
frame. The best way to do this is to check the:
16. A wire runs behind a damaged door panel from a con- DVOM to check
the voltage
nector ground terminal to a ground bolt. To check con- drop while
operating the
tinuity between the ground terminal and the the UP
ground bolt, use a: position.
17. A flow chart says that a circuit is formed
between terminals 3 and 8 with the switch in
3/
36
, mid term/exam electrical and mechanical
automotive
door lock. DVOM to measure
voltage drop across
terminals 3
This can be checked, without disconnecting the switch and 8 with
the switch held
from the circuit, by using a: UP.
18. A blower motor fuse blows after replacing the lower resistance in the
motor. The problem could be: new motor than the
orig- inal part.
4/
36
automotive
1. Current is being measured with the DVOM set to blow a fuse.
the 200 milliamp scale. The current flow
increases to 2.5 amps. The meter will:
2. In any electrical circuit there can be: voltage without current.
3. Silver is an excellent conductor. This means that silver a good carrier
of current
is: flow through a circuit.
4. Connecting a DVOM in reverse polarity when trying to show a
negative reading.
read current will:
5. Voltage in an automotive circuit: does not flow through
the circuit.
6. If a blower motor does not run, a good first at the hot side of the mo-
voltage check would be:
tor terminal.
7. A normal working circuit with one load will
up until the load, and 0
read full source voltage:
volts after the load.
8. With a wire conductor, the heavier the gauge, the: The less resistance
it has
9. The part of the circuit from the negative ground side.
terminal of the load to the ground is called:
10. A voltmeter is connected at a connector located
break, or open, in the
be- tween the power window motor and
ground connection.
ground. When the power window switch is
closed, the meter reads 13 volts. A possible
problem is a:
1/
36
, mid term/exam electrical and mechanical
automotive
11. A fan motor is in series with a resistor. The resistor gets in
proportion to the resis- hot when the fan motor is running. The
voltage drops tance of each load. across the motor and resistor
will read:
2/
36
, mid term/exam electrical and mechanical
automotive
12. Voltage measured across a turn signal bulb should be: full source
voltage.
13. An amplifier booster that draws 20 amps is increase the total
wired in parallel to the stereo system circuit on current of the circuit by
a vehicle. This will:
20 amps
.B Increase the total
resis- tance of the circuit
by 240 ohms. C.
decrease the to- tal
current of the circuit by
20 amps .D. increase
the circuit voltage by
2 volts.
14. A rear wiper circuit is ground-side switched. A voltage the rear
wiper is not reading at a connector on the ground side of the
load turned on. shows full source voltage. This likely means:
15. A flow chart says to run the fan motor and check for a voltage drop
between the
good connection between terminal #3 and the vehicle two points.
frame. The best way to do this is to check the:
16. A wire runs behind a damaged door panel from a con- DVOM to check
the voltage
nector ground terminal to a ground bolt. To check con- drop while
operating the
tinuity between the ground terminal and the the UP
ground bolt, use a: position.
17. A flow chart says that a circuit is formed
between terminals 3 and 8 with the switch in
3/
36
, mid term/exam electrical and mechanical
automotive
door lock. DVOM to measure
voltage drop across
terminals 3
This can be checked, without disconnecting the switch and 8 with
the switch held
from the circuit, by using a: UP.
18. A blower motor fuse blows after replacing the lower resistance in the
motor. The problem could be: new motor than the
orig- inal part.
4/
36
