SSC JE Electrical 2019 with solution SET-2

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

4200 watt-sec

420 joules

4.2 joules

420 watt-hour

4200 watt-sec

420 joules

4.2 joules

420 watt-hour

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SSC JE Electrical 2019 with solution SET-2
Which of the following is an important feature of a 3-phase synchronous motor?

No starting torque

Low starting torque

Low starting current

High starting torque

No starting torque

Low starting torque

Low starting current

High starting torque

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SSC JE Electrical 2019 with solution SET-2
A coil of 360 turns is linked by a flux of 200 μWb. If the flux is reversed in 0.01 second, then find the EMF induced in the coil?

7.2 V

0.72 V

14.4 V

144 V

7.2 V

0.72 V

14.4 V

144 V

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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

1

4

8

2

1

4

8

2

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SSC JE Electrical 2019 with solution SET-2
The 2’s complement of 1010101 is

1101010

1110011

0101011

0101010

1101010

1110011

0101011

0101010

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SSC JE Electrical 2019 with solution SET-2
The candle power of a lamp placed normal to a working plane is 60 CP. Find the distance if the illumination is 15 lux?

2.5 meters

4 meters

2 meters

1.5 meters

2.5 meters

4 meters

2 meters

1.5 meters

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