MGVCL EXAM PAPER (30-07-2021 SHIFT 2) QUIZ

A generating station having 'n' section busbars each rated at Q kVA with ×% reactance is connected on the tie-bars systems through busbar reactances of b%. Determine the short circuit kVA if a 3-phase fault takes place on one section.

Q[(1/x) + (n-1)/(bn+x)]

Q[(1/x) - (n+1)/(bn-x)]

Q[(1/x) + (n+1)/(bn-x)]

Q[(1/x) + (n+1)/(bn+x)]

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Which of the following is true regarding access lists applied to an interface?

You can apply two access lists to any interface

You can apply only one access list on any interface

One access list may be configured, per direction, for each layer 3 protocol configured on an interface

You can place as many access lists as you want on any interface until you run out of memory.

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If all the devices are connected to a central hub, then the topology is called

Bus Topology

Star Topology

Tree Topology

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The magnitude of the generator earth-fault current is limited by

using higher rating CTs

inserting the stabilizing resistance in series with the relay

inserting suitable resistance in neutral grounding circuit

controlling field exciter

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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 = 35 kW

W1 = 10 kW and W2 = 20 kW

W1 = -10 kW and W2 = 40 kW

W1 = 5 kW and W2 = 25 kW

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Choose the word which expresses nearly the opposite meaning of the given word "WHIMSICAL"

Regular

Funny

Curious

Fantastic

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Which of the following is linux operating system?

MacOS

HP-UX

Fedora

IBM-AIX

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A coil having an inductance of 100 mH is magnetically coupled to another coil having an inductance of 900 mH. The coefficient of coupling between the coils is 0.45. Calculate the equivalent inductance if the two coils are connected in series opposing.

730 mH

932 mH

1270 mH

1135 mH

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A sudden, non power frequency change in the steady state condition of voltage or current that is bidirectional in polarity is called as

Impulsive transient

Oscillatory transients

Harmonic

Distortion

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What is the full form of UN in 'UN Human Rights Prize'?

Uniformed Nations

United Nations

Uniform Nacional

Unity Nation

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