A synchronous motor runs at 600rpm, which of the following case is true?

SSC JE Electrical 2019 with solution SET-1
A synchronous motor runs at 600rpm, which of the following case is true?

P = 8, f = 50 Hz

P= 12, f = 50 Hz

P = 10, f = 60 Hz

P = 12, f = 60 Hz

P = 8, f = 50 Hz

P= 12, f = 50 Hz

P = 10, f = 60 Hz

P = 12, f = 60 Hz

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SSC JE Electrical 2019 with solution SET-1
_______is a tube that brings water to turbines

Spillway

Forebay

Penstock

Trash rack

Spillway

Forebay

Penstock

Trash rack

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SSC JE Electrical 2019 with solution SET-1
If an alternator is operating at unity power factor, then its terminal voltage is

Less than the induced EMF, with positive voltage regulation

Greater than the induced EMF, with negative voltage regulation

Less than the induced EMF, with negative regulation

Equal to the induced EMF, with zero voltage regulation

Less than the induced EMF, with positive voltage regulation

Greater than the induced EMF, with negative voltage regulation

Less than the induced EMF, with negative regulation

Equal to the induced EMF, with zero voltage regulation

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SSC JE Electrical 2019 with solution SET-1
A coil is wound with 50 turns and a current 8A produces a flux of 200μWb. Calculate the inductance of the coil

0.25 mH

2.5 mH

0.125 mH

1.25 mH

0.25 mH

2.5 mH

0.125 mH

1.25 mH

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SSC JE Electrical 2019 with solution SET-1
The below symbol which is used in single line diagrams represents

Potential transformer

Current transformer

Circuit breaker

Power transformer

Potential transformer

Current transformer

Circuit breaker

Power transformer

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SSC JE Electrical 2019 with solution SET-1
Lamp efficiency is measured in

Lumen/lux

Lux/watt

Lumen/watt

Candela/watt

Lumen/lux

Lux/watt

Lumen/watt

Candela/watt

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 A synchronous motor runs at 600rpm, which of the following case is true?

SSC JE Electrical 2019 with solution SET-1 _______is a tube that brings water to turbines

SSC JE Electrical 2019 with solution SET-1 If an alternator is operating at unity power factor, then its terminal voltage is

SSC JE Electrical 2019 with solution SET-1 A coil is wound with 50 turns and a current 8A produces a flux of 200μWb. Calculate the inductance of the coil

SSC JE Electrical 2019 with solution SET-1 The below symbol which is used in single line diagrams represents

SSC JE Electrical 2019 with solution SET-1 Lamp efficiency is measured in

SSC JE Electrical 2019 with solution SET-1
A synchronous motor runs at 600rpm, which of the following case is true?

SSC JE Electrical 2019 with solution SET-1
_______is a tube that brings water to turbines

SSC JE Electrical 2019 with solution SET-1
If an alternator is operating at unity power factor, then its terminal voltage is

SSC JE Electrical 2019 with solution SET-1
A coil is wound with 50 turns and a current 8A produces a flux of 200μWb. Calculate the inductance of the coil

SSC JE Electrical 2019 with solution SET-1
The below symbol which is used in single line diagrams represents

SSC JE Electrical 2019 with solution SET-1
Lamp efficiency is measured in