SSC JE Electrical 2019 with solution SET-1
 What is the reason behind using a centrifugal switch in a single-phase induction motor?

To out in the capacitor during running conditions
To cut-off the starting winding at an appropriate instant
To improve the starting performance of the motor
To protect the motor from overloading

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SSC JE Electrical 2019 with solution SET-1
 The meter constant of an energy meter will be given in:

Revolutions/kW
Revolutions/kWh
kWh/Revolutions
kW/Revolutions

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SSC JE Electrical 2019 with solution SET-1
 Two decimal coils A and B of 1000 turns each lies in the parallel plane such that 80% of the flux produced by one coil links with the other. If a current of 5A flowing in A produces a flux of 0.05 mWb, then the flux linking with coil B is:

0.04 mWb
0.4 mWb
4 mWb
0.004 mWb

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SSC JE Electrical 2019 with solution SET-1
 Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

Pmech = (2πωT)
Pmech = ωT
Pmech = (2πωT)/60
Pmech = (ωT)/60

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

Forebay
Spillway
Penstock
Trash rack

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