SSC JE Electrical 2019 with solution SET-2
During the ______ period the power supply to the motor is cut-off and the train is allowed to run due to its own momentum?

Free running
Coasting
Braking
Notching up

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SSC JE Electrical 2019 with solution SET-2
Which of the following is NOT related to the transmission and distribution of electric power?

Ferranti effect
Proximity effect
Skin effect
Stroboscopic effect

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SSC JE Electrical 2019 with solution SET-2
The type of damping used for moving iron instruments is

Fluid friction damping
Air friction damping
Eddy current damping
Gravity friction damping

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SSC JE Electrical 2019 with solution SET-2
In the two-wattmeter method of three-phase power measurement of a balanced load, if the reading of one meter is −200W, then the power factor of the load is

Less than 0.5
Greater than 0.5
Equal to zero
Equal to 0.5

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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

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