Journeyman Electrician Practice Test- 15
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Free online Journeyman Electrician Practice exam – 15
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Question 1 of 15
1. Question
A split phase motor should not be used to start heavy loads.
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Question 2 of 15
2. Question
The direction of rotation of RI motor cab changed …………………………
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Question 3 of 15
3. Question
The motor overload device ampere rating should not be less than …………. percentage of the motor full load ampere rating, if the motor is used in homes and on forms.
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Question 4 of 15
4. Question
The service drop wire should maintain clearance of at least ……….. from windows.
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Question 5 of 15
5. Question
When a ground rod is used, the ground wire size not be larger than …………………..
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Question 6 of 15
6. Question
If a 20 amp non motor operated appliance is supplied by a branch circuit what is the maximum ampere rating of a overload device in the circuit?
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overload device rating = 150 % * 20 = 30 amp
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Question 7 of 15
7. Question
Which color wire is the mostly used as ground wire?
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Question 8 of 15
8. Question
If the current in two current carrying conductors is in opposite direction, which force will exerts in between conductors?
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Question 9 of 15
9. Question
In a D.C Generator, the sparking at brushes occurs due to ……………………………….
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Question 10 of 15
10. Question
Which of the following is suitable statement to indicate that an electrical transformer cannot be used for DC Power System
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Question 11 of 15
11. Question
Which of the following is equal to the power factor of an electrical circuit?
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Question 12 of 15
12. Question
What is the minimum size liquid tight flexible metal conduit ( LFMC) that can be used for general purpose?
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Refer: NEC 359.20 (A)
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Question 13 of 15
13. Question
Which of the following circuits shall not be connected to system containing trolley wires?
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Refer: NEC 110.19
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Question 14 of 15
14. Question
Which of the following is the smallest size grounded electric conductor for an electric service using 1200 kcmil copper conductor?
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Refer: NEC Table 250.66
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Question 15 of 15
15. Question
What is the highest current rating of plug fuses of Edison base type?
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Refer: NEC 240.51