SSC JE Electrical 2019 with solution SET-2

SSC JE Electrical 2019 with solution SET-2
The residential distribution system employs_____

Three-phase, three-wire

Single-phase, two-wire

Three-phase, four-wire

Two-phase, four-wire

Three-phase, three-wire

Single-phase, two-wire

Three-phase, four-wire

Two-phase, four-wire

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SSC JE Electrical 2019 with solution SET-2
1 kcal is approximately equal to

4.2 joules

420 watt-hour

4200 watt-sec

420 joules

4.2 joules

420 watt-hour

4200 watt-sec

420 joules

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SSC JE Electrical 2019 with solution SET-2
The number of brushes required for a 4 pole, lap wound DC machine is

8

1

4

2

8

1

4

2

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SSC JE Electrical 2019 with solution SET-2
Observe the figure and find the correct relation from the four given options?

i1 + i2 + i4 = i3 + i5 + i6

i4 + i2 + i3 = i1 + i5 + i6

i1 + i2 + i6 = i4 + i5 + i3

i1 + i2 + i3 = i4 + i5 + i6

i1 + i2 + i4 = i3 + i5 + i6

i4 + i2 + i3 = i1 + i5 + i6

i1 + i2 + i6 = i4 + i5 + i3

i1 + i2 + i3 = i4 + i5 + i6

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SSC JE Electrical 2019 with solution SET-2
The torque angle of a 3-phase synchronous motor depends on its _____

Supply voltage

Speed

Excitation

Load

Supply voltage

Speed

Excitation

Load

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SSC JE Electrical 2019 with solution SET-2
Both the main winding and auxiliary winding of a single-phase induction motor is placed on the ______?

Both stator and rotor

Rotor

Neither stator nor rotor

Stator

Both stator and rotor

Rotor

Neither stator nor rotor

Stator

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