JOURNEYMAN ELECTRICAL Practice Exam Questions and Answers Latest Versions 2025 Top rated A+

JOURNEYMAN ELECTRICAL Practice Exam
Questions and Answers Latest Versions 2025 Top
rated A+ II II II II II II II II II II II II II II II

1. Which of the following do three 150 volt parallel circuits produce the total current ?
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a . 50 volts II II II

b . 150 volts
II II II

c . 225 volts II II II

d . 450 volts
d
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3. If a custodian in your building finds out that an office worker is using a hot plate on a
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circuit that already has a lot of appliances plugged into , the safest thing to do is to :
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a . remove the hot plate from the office when its owner is not present
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b demand that the office worker remove the hot plate immediately
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c . write a report to the supervisor of the office requesting corrective action
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d . ignore the situation
c II II II II II II II II II II II II II II


4. The following conditions must be met for branch circuits to be de rived from
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autotransformers :
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a . The grounded conductor is protected from access by unauthorized personnel .
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b The autotransformer operates at less than 600 volts nominal
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c. An electrical connection is made be tween the grounded conductor of the supplied
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circuit and the grounded conductor of the system supplying the auto transformer
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d . All of the above
c II II II II II II II II II II II II II II II II


5. It is permitted to tap two - wire AC circuits with ungrounded conductors from circuits that
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have one of the following :
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a . Two switching devices
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b . Switches with multiple poles that operate automatically
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c . Conductors that are grounded
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d . None of the above
a II II II II II II II II II II II II II II II II II II II


6. The voltage between the line and grounded neutral of a 208 volt , 3 phase , 4 wire circuit
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power supply is approximately volts .
I


a 120 II II


b . 208
II II


c . 220 II II


d . 240
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7. Limiting the total number of circuits in an enclosure achieves the following :
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a Reduces the effects of short circuits
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b . Eliminates over - expansion in the future
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c . Makes qualified workers easily accessible
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d . Provides a standard for the Authority Having Jurisdiction
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8. Circuits rated at less than 100 amps , or with conductors sized between 14 AWG and
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AWG are only suitable for conductors of the following ratings :
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a . 55 degrees C ( 131 degrees F )

, II II II II II II II II II

b . 60 degrees C ( 140 degrees F )
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c . 75 degrees C ( 167 degrees F )
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d . 80 degrees C ( 176 degrees F )
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9. Covers for underground pull boxes used for circuits over 600 volts that are not locked ,
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bolted or screwed must weigh the same as :
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a . 25 pounds
II II II

b . 50 pounds

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c 75 pounds
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d 100 pounds
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11. Parallel circuits experience the following total power loss
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a . Dissipation of individual power
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b . Multiple the circuits the sum of their individual circuits
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c . The total current flowing through each branch of the circuit
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d None of the above
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12. If the number of circuits in an enclosure is limited , it will not be possible to minimize the
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effects of a ground fault in just one circuit .
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a True b . False
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13. An independent grounding connection must be for any new current transformer
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associated a potentially energized circuit .
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a . True b . False
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14. A feeder's calculated load must be 75 % or less of the sum of branch circuit loads after
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derating factors are applied
a . True b False
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F II II II II II II II II II II II II II

15. To supply power to screw shell lamp holders voltages over 120 volts between
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conductors must not exceed 277 volts .
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a True b . False
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3. According to Kirchoff's current law , electrical current will do which of the following in
II II II

parallel circuits :
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a . Combine in the parallel path
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b . Divide and flow through each parallel path
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c . Increase in voltage
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d . Experience a voltage drop
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4. When electrical current is given mul tiple conductive paths to flow the cur rent will
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always take the path of least resistance .
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a . True b False
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1. Electrical wires were covered with asbestos protect them from damage
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A. high voltage
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B. high temperatures
II II

C. water damage II

D. electrolysis
B II II II II II II II II II II II II II II II

2. The rating term 240 volts , 10 H.P. would be properly used to describe a
II

A. transformer
II II

B. storage battery