SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1
Lamp efficiency is measured in

Candela/watt

Lumen/watt

Lumen/lux

Lux/watt

Candela/watt

Lumen/watt

Lumen/lux

Lux/watt

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SSC JE Electrical 2019 with solution SET-1
The cheap and temporary system of the internal wiring is?

Conduit wiring

CTS or TRS wiring

Cleat wiring

Casing-capping

Conduit wiring

CTS or TRS wiring

Cleat wiring

Casing-capping

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SSC JE Electrical 2019 with solution SET-1
Which of the following losses is together called iron losses?

Eddy current loss and hysteresis loss

Hysteresis loss and frictional loss

Eddy current loss and frictional loss

Hysteresis loss and copper loss

Eddy current loss and hysteresis loss

Hysteresis loss and frictional loss

Eddy current loss and frictional loss

Hysteresis loss and copper loss

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SSC JE Electrical 2019 with solution SET-1
The below symbol which is used in single line diagrams represents

Circuit breaker

Potential transformer

Power transformer

Current transformer

Circuit breaker

Potential transformer

Power transformer

Current transformer

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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

0.9

0.5

1

0.8

0.9

0.5

1

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SSC JE Electrical 2019 with solution SET-1
Two decimal coils A and B of 1000 turns each lies in the parallel plane such that 80% of the flux produced by one coil links with the other. If a current of 5A flowing in A produces a flux of 0.05 mWb, then the flux linking with coil B is:

4 mWb

0.004 mWb

0.04 mWb

0.4 mWb

4 mWb

0.004 mWb

0.04 mWb

0.4 mWb

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