SSC JE Electrical 2019 with solution SET-2
The scheduled speed of a train is______

Equal to average speed
Always greater than the average speed
Always less than the average speed
Equal to maximum speed

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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
Equal to 0.5
Equal to zero
Greater than 0.5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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?

Voltage lags current by 60°
Voltage leads current by 60°
Can’t be determined
Voltage and current are in phase

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

SSC JE Electrical 2019 with solution SET-2
______braking is used where the load on the motor has very high inertia (e.g. in electric trains)?

Coasting
Plugging
Regenerative
Rheostatic

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP