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

MGVCL Exam Paper (30-07-2021 Shift 3)
The magnetizing inrush current in a transformer is rich in the harmonic component.

second
third
fifth
seventh

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

2nd harmonics contains - 60 to 55 %
3rd harmonics contains - 40 - 50%

MGVCL Exam Paper (30-07-2021 Shift 3)
In the following question, one part of the sentence may have an error. Find out which part of the sentence has an error and select the option corresponding to it. If the sentence contains no error, Select "No error" option. (Avoid punctuation errors).
(A) The boys campaigned / (B) not only in / (C) Mumbai also in Chennai / (D) NO ERROR

C
D
B
A

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MGVCL Exam Paper (30-07-2021 Shift 3)
What is the value of the characteristic impedance of a transmission line with impedance and admittance of 15 and 5?

1.414
0.577
0.7.7
1.732

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Characteristic impedance = √(impedance/admittance) = 1.73

MGVCL Exam Paper (30-07-2021 Shift 3)
Which is the function of Operating System?

Security
Process Management
Devices Management
All of these

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MGVCL Exam Paper (30-07-2021 Shift 3)
The maximum value of power factor is ____ and it exists in a pure____ circuit.

0.866, inductive
1, inductive
0.866, resistive
1, resistive

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Value of power factor is varies from 0 to 1.
R→PF = 1
L→PF = 0 lag
C→PF = 0 lead
R-L→0 lag < PF < 1
R-C→0 lead < PF < 1
R-C-L→depends on value of R, L and C. PF = R/Z

MGVCL Exam Paper (30-07-2021 Shift 3)
Which country leads in the production of biofuel in the world?

Germany
Argentina
Brazil
United States of America

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Rank - Country - Production (thousands barrel)
1 - US - 940
2 - Brazil - 449
3 - Germany - 68
4 - China - 68

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