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MGVCL Exam Paper (30-07-2021 Shift 3)

MGVCL Exam Paper (30-07-2021 Shift 3)
Job, in operating system refers to

System software
Application Software
Program
Process

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MGVCL Exam Paper (30-07-2021 Shift 3)
Two-wattmeter method is used to measure the power taken by a 3-phase induction motor on no load. The wattmeter readings are 400 W and -50 W. Calculate the reactive power taken by the load

350/√3 VAR
450√3 VAR
450/√3 VAR
350√3 VAR

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Reactive power taken (Q) = √3*(W1 - W2)
= √3*(450 + 50)
= √3*450 kVAR

MGVCL Exam Paper (30-07-2021 Shift 3)
Name the application under MS Office software bundle, that we use to create audio- visual presentation.

MS Excel
MS Word
MS Power point
MS Access

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MGVCL Exam Paper (30-07-2021 Shift 3)
Which state is the largest producer of wind energy in India?

Tamil Nadu
Maharashtra
Andhra Pradesh
Madhya Pradesh

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Rank - State - Capaciy
1 - Tamilnadu - 7.5 GW
2 - Maharastra - 5 GW
3 - Karnataka - 4.8 GW
4 - Rajsthan - 4.3 GW

MGVCL Exam Paper (30-07-2021 Shift 3)
A three phase four pole 50 Hz induction motor has a rotor resistance of 0.02 Ω/phase and stand-still reactance of 0.5 Ω/phase. Calculate the speed at which the maximum torque is developed.

1440 rpm
1525 rpm
1500 rpm
1475 rpm

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Condition for maximum torque,
Sm = R2/X2
= 0.04
Ns = (120*f)/P
= (120*50)/4
= 1500 rpm
S = (Ns - Nr)/Ns
Nr = Ns(1 - Sm)
= 1500*(1 - 0.04)
= 1440 rpm

MGVCL Exam Paper (30-07-2021 Shift 3)
The elements are specialized computers used to connect two or more transmission lines.

Transfering
Networking
Broadcasting
Switching

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