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

MGVCL Exam Paper (30-07-2021 Shift 3)
The current in the coil of a large electromagnet falls from 6 A to 2 A in 10 ms. The induced emf across the coil is 100 V. Find the self-inductance of the coil.

1.25 H
0.25 H
0.75 H
0.5 H

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Equation of self inductance:
V = Ls*(di/dt)
Ls = V/(di/dt)
= 100/((6 - 2)/(0.01))
= 0.250 H
= 250 mH

MGVCL Exam Paper (30-07-2021 Shift 3)
Arunachal Pradesh does not share its borders with which one of the following nations?

China
Bhutan
Myanmar
Bangladesh

ANSWER DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 3)
Fill in the blanks with suitable Preposition from the given alternatives.
BCCI receives____1000 applications for Team India head coach position

since
against
for
over

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

MGVCL Exam Paper (30-07-2021 Shift 3)
The complex power injections at a bus are shown in figure Two lines connected drawing the powers as shown in figure. The complex power in the line-2 "S2" is

2-j1
2+j1
2+j5
2-j5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Total power generate (Sg) = S1 + S2
S2 = Sg - S1
= 5 + 3j - 3 + 2j
= 2 + 5j

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

Tamil Nadu
Madhya Pradesh
Andhra Pradesh
Maharashtra

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

MORE MCQ ON MGVCL Exam Paper (30-07-2021 Shift 3)

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