Journeyman Electrician Practice Test-16
Quiz-summary
0 of 15 questions completed
Questions:
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
Information
Take a free online exam on Journeyman electrician Practice test – 16
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 15 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Categories
- Not categorized 0%
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- Answered
- Review
-
Question 1 of 15
1. Question
1 pointsNo separate disconnecting means is not required for a motor having power rating 1/4 HP or less.
Correct
Incorrect
no separate disconnecting means is not required if the motor power is 1/8 hp or less
-
Question 2 of 15
2. Question
1 pointsA concealed conductor in electrical wiring means:
Correct
Incorrect
Please Refer: NEC 100 Definitions
-
Question 3 of 15
3. Question
1 pointsWhich of the following is the equation used to calculate the voltage drop in a resistor according to Kirchhoff’s voltage law?
Correct
Incorrect
E = IR
-
Question 4 of 15
4. Question
1 pointsA Electric water heater consumes 16 ampere from a 240 volt branch circuit. what is the minimum ampere rating of branch circuit?
Correct
Incorrect
ampere rating = 16 * 125 % = 20 amperes
-
Question 5 of 15
5. Question
1 pointsLoad shared by two transformers connected in parallel will depend upon their ………………….
Correct
Incorrect
-
Question 6 of 15
6. Question
1 pointsThe slip of induction motor is always ………………
Correct
Incorrect
-
Question 7 of 15
7. Question
1 pointsThe overhead conductors between last pole of power company and building structure used for electrical service are termed as …………..
Correct
Incorrect
Refer: NEC 100 Definitions
-
Question 8 of 15
8. Question
1 pointsIf a time delay fuse is used as short circuit protection of a motor, what is the maximum allowed rating of fuse?
Correct
Incorrect
-
Question 9 of 15
9. Question
1 pointsWhat is the minimum distance that a service drop wires should maintain if it is placed above commercial places?
Correct
Incorrect
Refer : Nec 230.24
-
Question 10 of 15
10. Question
1 pointsThe leakage flux in a transformer depends upon …………………….
Correct
Incorrect
-
Question 11 of 15
11. Question
1 pointsWhat percentage of rated current is the distribution transformer no load current?
Correct
Incorrect
-
Question 12 of 15
12. Question
1 pointsPlug fuses of Edison-base type shall be used for only …………………
Correct
Incorrect
Refer: NEC 240.51 (B)
-
Question 13 of 15
13. Question
1 pointsThe pendant conductors longer than ……….. in length to be twisted together.
Correct
Incorrect
Refer: NEC 410.54 (C)
-
Question 14 of 15
14. Question
1 pointsWhich of the following instrument is used to measure the resistance in the circuit directly?
Correct
Incorrect
-
Question 15 of 15
15. Question
1 pointsIf a 30 amperes snap switch is used as disconnecting means of a 3-horse power motor, what shall be the maximum full load current of the motor?
Correct
Incorrect
Refer: NEC 430.109(C) (2)
If a snap switch is used to disconnect a motor must be derated to 80%
So maximum full load current of motor = 30 * 0.8 = 24 amperes