MGVCL Exam Paper (30-07-2021 Shift 1)
The frequency of the emf in the stator of a 4-pole induction motor is 50 Hz, and that in the rotor is 2 Hz. What is the slip and at what speed is the motor running?

4%, 1440 rpm
4%, 1455 rpm
3%, 1455 rpm
3%, 1440 rpm

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MGVCL Exam Paper (30-07-2021 Shift 1)
A thermistor is inherently suitable for temperature measurement involving

low span and high sensitivity
high span and low sensitivity
low span and low sensitivity
high span and high sensitivity

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MGVCL Exam Paper (30-07-2021 Shift 1)
Determine the ohmic value of the current limiting reactor per phase external to a 30 MVA, 11 kV, 50 Hz, three phase synchronous generator which can limit the current on short circuit of 5 times the full load current. The reactance of the synchronous generator is 0.05 pu.

0.405 Ω
0.305 Ω
0.805 Ω
0.605 Ω

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