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Worksheets120 Volt AC Outlet
Total questions: 20
Worksheet time: 20mins
AC stands for
Air-condition
Direct Current
Alternating Current
Alternating Voltage
An electric current that continually reverses direction over time is known as a(n)
direct current
alternating current
simple current
Current-carrying conductors used in the AC system of an RV are required to be of the
A. low voltage type
B. solid copper type
C. stranded copper type
D. flexible copper type
When determining wire size by gauge, the larger the gauge number, the
A. longer the wire length required
B. more overcurrent provided
C. larger the wire
D. smaller the wire
When measured with an ohmmeter an unfailed overcurrent protection device will have
A. zero resistance
B. very high resistance
C. 12 VDC
D. 120 VAC
Which of the following is acceptable?
A. using a 12 ga conductor with a 15 amp circuit breaker
B. using a 14 ga conductor with a 20 amp circuit breaker
C. using a 12 ga conductor with a 30 amp circuit breaker
D. using a 16 ga conductor with a 15 amp circuit breaker
In the diagram which statement is true?
A. D and E are batteries
B. A is closed
C. F is a relay
D. B and C are resistors
Determine the wattage of an AC circuit that draws 15 amps at 120 VAC
8 watts
18 watts
180 watts
1800 watts
Which bulb will use the least amperage?
A. 115V, 60 W
B. 115V, 100 W
C. 12V, 60 W
D. 12V, 100W
. A refrigerator is not functioning properly in the electrical mode (no cooling). The resistance of the heating element reveals that it has 20.75 ohms of resistance. The data plate indicates that the refrigerator heating element should draw 325 W on 120 VAC. The technician should
A. check for 120 on the heating element
B. replace with a higher wattage element
C. check size of circuit breaker
D. replace the heating element
The ground and neutral wires from the 120 VAC shoreline power should be attached
to the same buss bar
to separate buss bars
to the converter
to the circuit breaker case
What color wire is present in the 50-amp shore cord that is NOT in a 30-amp shore cord?
A. blue
B. red
C. yellow
D. black
If a customer complains of low voltage at the AC panel, the technician should FIRST
A. recalibrate his/her meter
B. check voltage at the pedestal
C. check the polarity indicator
D. replace the overcurrent protection device
In an AC Circuit a voltmeter must always be connected
A. in series with the source
B. on the positive side
C. in parallel with the circuit or load
D. in relationship to the component
If a 15-amp breaker continues to blow after you have verified a 9 amp load, you should replace the
A. heat spring
B. contacts
C. heat bar
D. breaker
If a 120 VAC circuit breaker will not reset, the technician should
A. disassemble and clean the contacts
B. disassemble and replace the contacts
C. replace the breaker with one of the same amperage
D. replace the breaker with one of higher amperage
Technician A says that a generator’s neutral and ground must be tied together when the generator is supplying AC power. Technician B says that they must always be kept isolated. Which technician is correct?
Tech A
Tech B
Both
Neither
An inverter is used to convert
A. AC to AC power
B. DC to AC power
C. AC to DC power
D. DC to DC power
A Rectifier is used to convert
A. AC to AC power
B. DC to AC power
C. AC to DC power
D. DC to DC power
