Electrical

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Total Timer

Q1 Timer

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Which of the following is not a type of service disconnect?

Circuit Breakers

Fuse block

Knife blade switch

Bus Bar

Q2 Timer

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If a grounded conductor is attached to the disconnect switch, which type of service disconnect must be used?

Circuit breakers

Fuse Block

Knife Blade Switch

None of the above

Q3 Timer

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What is the most frequently used wire size for interior wiring?

10 AWG

18 AWG

12 AWG

15 AWG

Q4 Timer

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If you have four to six 12 AWG wires in a conduit, what would be the allowable current-carrying capacity in percentage to the normal?

80%

70%

50%

60%

Q5 Timer

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If a box is to contain four No. 10 conductors and two No. 12 conductors, what is the minimum sized box that can be used in cubic inches?

14 1/2

12

15

13 1/2

Q6 Timer

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A run of an electrical conduit may not have more than _____________ quarter bends between fittings and outlets?

2

4

3

5

Q7 Timer

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The total load on any single overcurrent device in a panelboard must not exceed 80 percent of it's capacity where the load continues for 3 or more hours to avoid overheating of the conductor.

True

False

Q8 Timer

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A fuse should be rated higher than the lowest-rated component in a panelboard to be protected.

False

True

Q9 Timer

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Which of the following locations would most likely require the installation of a ground fault circuit interrupter?

Living room

Bedroom

Closet

Bathroom

Q10 Timer

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An open circuit occurs in a wiring system when _____________________.

The system is working properly

A fuse is installed

A conductor is broken or separated

None of the above

Q11 Timer

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Short circuits or grounds can be all of the following except __________________.

Contracted

Floating

Partial

Solid

Q12 Timer

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Which phase is probably open when you test Phase A and Phase B and get a low voltage reading, test Phase B and C and get a normal reading and test Phase A and C and get a low voltage reading?

Phase A

Phase C

Phase B

None of the above

Q13 Timer

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In residential buildings, small appliance loads should have two or more ________________.

15 ampere branch circuits

50 ampere branch circuits

40 ampere branch circuits

20 ampere branch circuits

Q14 Timer

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Ohm's law states ____________________.

Voltage = current / resistance

Voltage = current / watts

Voltage = watts x current

Voltage = amps x resistance

Q15 Timer

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The amount that a given conductor resists the flow of electric current is measured in ___________.

Volts

Ohms

Watts

Lambs

Q16 Timer

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What law would you use to determine the voltage of a power supply?

Coulomb's Law

Ohm's Law

Kirchoff's Law

None of the above

Q17 Timer

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Which law holds that like-charged objects repel and opposite-charged objects attract?

Coulomb's Law

Ohm's Law

Kirchoff's Law

None of the above

Q18 Timer

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Direct current can change direction.

False

True

Q19 Timer

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What alternating current changes direction at which of the following frequencies?

60 Hz

70 Hz

40 Hz

50 Hz

Q20 Timer

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Electron Theory and Conventional Theory hold opposite current flow directions.

True

False

Q21 Timer

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Which of the following will not affect the resistance of a circuit?

Length of the Conductor

Insulation of the Conductor

Diameter of the Conductor

Physical Condition

Q22 Timer

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The greater the resistance, the more power is dissipated in the form of heat energy.

True

False

Q23 Timer

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Which of the following is a source of electricity?

Friction

Pressure

Light

All of the above

Q24 Timer

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In a series circuit, the current has ___________ path(s) to take.

3

1

4

2

Q25 Timer

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When connecting a voltmeter to a DC circuit, what should be observed?

Resistance

Polarity

RMS

Power Factor

Q26 Timer

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What are the 120/208-volt phase colors?

BK-W

BK-R-BU-W

R-BU

Y-R-W-BU

Q27 Timer

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What are the 277/480-volt phase colors?

B-O-Y-GRAY/PURPLE

B-O-Y-BLUE

B-O-Y-WHITE

B-O-Y-RED

Q28 Timer

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What does “GFCI” stand for?

Grounding Farad Cable Interrupter

Ground Fault Circuit Interrupter

Ground Fault Circle Interrupter

Grounding Farad Conductor Interrupter

Q29 Timer

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What is the ground conductor for a 50 AMP circuit breaker and # 6 conductors?

#40

#50

#10

#12

Q30 Timer

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What is the maximum height of a barker, disconnect handle, or meter?

4'7"

3'7"

5'7"

6'7"

Q31 Timer

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AMP rating of # 12 THHN?

10

12

20

30

Q32 Timer

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AMP rating of #10 THHN?

60

15

30

40

Q33 Timer

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What is the typical height of a receptacle?

6"

18"

20"

12"

Q34 Timer

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What is the typical height of a light switch?

35"

45"

25"

15"

Electrician Assessment