SSC JE Electrical 2019 with solution SET-2

SSC JE Electrical 2019 with solution SET-2
If two impedances are given as Z1 = 20∠60° and Z2 = 5∠30°, then Z1/Z2 = ?

100∠30°

4∠30°

100∠120°

5∠30°

100∠30°

4∠30°

100∠120°

5∠30°

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SSC JE Electrical 2019 with solution SET-2
If the AC voltage and current are given by the following expressions?
v = 200sin (314t — 60°)
i = 50sin (720t), then what is the phase relation between them?

Can’t be determined

Voltage and current are in phase

Voltage leads current by 60°

Voltage lags current by 60°

Can’t be determined

Voltage and current are in phase

Voltage leads current by 60°

Voltage lags current by 60°

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SSC JE Electrical 2019 with solution SET-2
The combined inductance of two coils connected in a series is 0.6H and 0.1H, depending on the relative directions of the currents to the coils. If one of the coils when isolated has a self-inductance of 0.2 H, then calculate the natural inductance?

0.15 H

1.5 H

0.015 H

0.125 H

0.15 H

1.5 H

0.015 H

0.125 H

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SSC JE Electrical 2019 with solution SET-2
Which of the following motors can be connected across a single-phase AC supply?

DC shunt motor

Cumulative compound motor

Differential compound motor

DC Series Motor

DC shunt motor

Cumulative compound motor

Differential compound motor

DC Series Motor

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SSC JE Electrical 2019 with solution SET-2
While estimating the overhead lines, if the number of poles required is 14, then what is the estimated number of earth sets required?

5

4

3

2

5

4

3

2

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SSC JE Electrical 2019 with solution SET-2
Creeping is a term related to instruments?

Dynamometer type

Moving iron type

PMMC type

Induction type

Dynamometer type

Moving iron type

PMMC type

Induction type

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