SSC JE Electrical 2018 with solution SET-1
 Power consumed by a balanced star connected 3-phase load is measured using the two-wattmeter method. The phase voltage and phase current in the load is 220V and 10 A respectively. What will be the difference in reading (in W) of the two wattmeters, if the power factor of the system is 0.8 Lagging?

3048.4
3810.5
2286.3
2861.2

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SSC JE Electrical 2018 with solution SET-1
 A house has 5 fans of 70 W each that operates for 16 hours a day and one washing machine of 2000 W that operates for 1 hours per day in the month of June. What is the energy consumption(in kWh) of the house in the month of June?

228
486.6
235.6
350

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SSC JE Electrical 2018 with solution SET-1
The motor used on a small lathe is usually

D.C shunt Motor
Single-phase capacitor run Motor
Universal Motor
3-Phase Synchronous Motor

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SSC JE Electrical 2018 with solution SET-1
A PMMC type voltmeter, having a full-scale reading of 250 V and an internal resistance of 400 kilo-ohms, is connected with the series resistance of 100 kilo-ohms. Calculate the sensitivity of the voltmeter (in Ohms/Volts)

2400
20000
24000
2000

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