Journeyman Electrician Practice Test- 14
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Free Online Journeyman Practice Test – electrician Exam Practice Test – 14
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Question 1 of 15
1. Question
1 pointsFor a small form building consisting of 2 wire branch circuits, What is the minimum ampacity capacity of service equipment is required?
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Refer : NEC 230-41
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Question 2 of 15
2. Question
1 pointsOne pole circuit breaker protects one 120 volt branch circuit.
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Question 3 of 15
3. Question
1 pointsIf the motor overload is increased to much, the motor will ………………..
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Question 4 of 15
4. Question
1 pointsProximity effect is due to the current flowing in the …………..
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Question 5 of 15
5. Question
1 pointsIn a Transmission system the reactive power can be injected by using ……………………..
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Question 6 of 15
6. Question
1 pointsRegulating transformers are used in power system to control:
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Question 7 of 15
7. Question
1 pointsThe speed of the ordinary AC Motor can be controlled by rheostats.
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Ordinary motors speed cannot be controlled. Those are constant speed motors. Special motors like shaded pole motors, universal motors etc speed can be controlled.
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Question 8 of 15
8. Question
1 pointsA 3 HP motor operating at 104 F has a service factor of 1.2. What is the maximum power that it can continuously without any damage?
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Question 9 of 15
9. Question
1 pointsWhich of the following motors has lowest starting current?
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Question 10 of 15
10. Question
1 pointsRepulsion-Start Induction Run Motors can run on only single phase alternating current.
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Question 11 of 15
11. Question
1 pointsWhich of the following is the equation used to calculate the voltage drop in a resistor according to Kirchhoff’s voltage law?
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E = IR
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Question 12 of 15
12. Question
1 pointsHow many number of entrances should be provided to give access from working space about electrical equipment?
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Refer : NEC 110.26( C ) 1
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Question 13 of 15
13. Question
1 pointsThe minimum size copper equipment grounding conductor for a 100 amperes circuit is …………….
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Refer: NEC Table 250.122
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Question 14 of 15
14. Question
1 pointsThe overhead conductors between last pole of power company and building structure used for electrical service are termed as …………..
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Refer: NEC 100 Definitions
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Question 15 of 15
15. Question
1 pointsThe pendant conductors longer than ……….. in length to be twisted together.
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Refer: NEC 410.54 (C)