MGVCL Exam Paper (30-07-2021 Shift 2)
In transformer, a Sweep Frequency Response Analysis (SFRA) test will help detect ____

Movement / damage to internal components
Age of the insulation
Moisture in the windings
Aging by-products

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MGVCL Exam Paper (30-07-2021 Shift 2)
A 3-phase motor load has a p.f. of 0.397 lagging. The two wattmeter method used to measure power show the input as 30 kW. Find the reading on each wattmeter.

W1 = 5 kW and W2 = 25 kW
W1 = -10 kW and W2 = 40 kW
W1 = -5 kW and W2 = 35 kW
W1 = 10 kW and W2 = 20 kW

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MGVCL Exam Paper (30-07-2021 Shift 2)
The miniature circuit breaker (MCB) with Class D trip characteristics trips instantaneously when the current flowing through it reaches ____ the rated current.

between 2 to 3 times
between 5 to 10 times
between 3 to 5 times
between 10 to 20 times

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which of the following is true regarding access lists applied to an interface?

You can apply only one access list on any interface
You can apply two access lists to any interface
You can place as many access lists as you want on any interface until you run out of memory.
One access list may be configured, per direction, for each layer 3 protocol configured on an interface

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MGVCL Exam Paper (30-07-2021 Shift 2)
A three-phase 400 V, 6-pole, 50 Hz squirrel-cage induction motor is running at a slip of 5%. The speed of rotor with respect to stator magnetic field and speed of the stator magnetic field with respect to rotor magnetic field are

950 rpm, zero
-50 rpm, 1000 rpm
-50 rpm, zero
950 rpm, 1000 rpm

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