Journeyman Electrician Practice Test-22
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Free online journeyman electrician exam practice test -22
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Question 1 of 10
1. Question
1 pointsOn a 15 amp circuit, the continuous load ampere rating is ……………….
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80 % of 15 = 12 amperes
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Question 2 of 10
2. Question
1 pointsTwo small wires that are connected parallel for use as a single large wire should have same length.
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Question 3 of 10
3. Question
1 pointsThe voltage between conductors of fluorescent lighting fixtures of a dwelling unit or a guest room of hotel should be less than 150 volts.
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Since fluorescent lighting fixtures do not have lamp holders of the screw-shell type, the 150 volts restriction is not applicable.
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Question 4 of 10
4. Question
1 pointsThe demand factor may be applied to feeders and branch circuits but not to service entrance wires.
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Question 5 of 10
5. Question
1 pointsIn an electrical circuit, the current flow will be higher in high resistance path.
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Question 6 of 10
6. Question
1 pointsUngrounded conductors in a single phase – 3 wire electrical system are also refereed as …………………………..
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Question 7 of 10
7. Question
1 pointsIn a parallel electrical circuit which of the electrical quantity is same?
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Question 8 of 10
8. Question
1 pointsWhat is the resistance offered by 60 W tungsten lamp when 120 Volts is applied to it?
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P = V2 / R => R = V2 / P = 1202 / 60 = 240 Ohms
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Question 9 of 10
9. Question
1 pointsThe minimum clearance space required to work around motor control centers, switch panel boards etc is ……………….. ft
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Question 10 of 10
10. Question
1 pointsThe allowable ampacity of the branch circuit conductors shall be permitted to be not less than the sum of the continuous load plus ……………………. load
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Refer : NEC 210.19 A
Electrician Practice Tests:
Note 1:
Every motor which is rated more than 1 HP and used in contentious duty applications shall be protected by overload protection. The following are the protection settings as per the NEC code.
- 125% of FLC ( If service factor is greater then 1.15)
- 125% of FLC ( If the temperature rise does not exceed 40 C)
- 115 % of FLC (For all other motors)
Note 2:
If the overload settings is not sufficient to start the motor, then a higher setting is allowed to use as per NEC 430.32(C). The higher settings are as follows:
- 140% of FLC ( If service factor is greater then 1.15)
- 140% of FLC ( If the temperature rise does not exceed 40 C)
- 130 % of FLC (For all other motors)