SSC JE Electrical 2019 with solution SET-1
In the two wattmeter method, the readings of the two wattmeters are 500W, 500W respectively. The load power factor in a balanced 3-phase 3-wire circuit is:

0.8
0.5
1
0.9

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SSC JE Electrical 2019 with solution SET-1
 The Norton’s current in the circuit shown below is

2A
4A
12A
120A

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SSC JE Electrical 2019 with solution SET-1
 In a single-phase capacitor start-and-run motor, the minimum number of capacitors to be used in it is:

1
2
3
4

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SSC JE Electrical 2019 with solution SET-1
 The ratio of conductor voltage and the voltage across the disc nearest to the conductor multiplied by the number discs are

Disc efficiency
Transmission line efficiency
Insulator efficiency
String efficiency

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SSC JE Electrical 2019 with solution SET-1
 Which of the following should be used under no-load conditions?

Circuit breaker
Rewireable fuse
Isolator
Air-break switch

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