MGVCL Exam Paper (30-07-2021 Shift 1)

MGVCL Exam Paper (30-07-2021 Shift 1)
___ is the process of actuating equipment operation at remote locations.

Data acquisition

Supplementary control

Supervisory control

Data processing

Data acquisition

Supplementary control

Supervisory control

Data processing

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MGVCL Exam Paper (30-07-2021 Shift 1)
For sea water with σ = 5 mho/m and ε_r = 80, what is the distance for which ratio signal can be transmitted with 90% attenuation at 25 kHz?

0.327 m

327 m

32.7 m

3.27 m

0.327 m

327 m

32.7 m

3.27 m

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MGVCL Exam Paper (30-07-2021 Shift 1)
An RC series circuit with R = 150 Ω and C = 2 μF is excited by a DC source of 15 V by closing the switch at t = 0 with an initially uncharged capacitor. The initial and final voltages across the capacitor respectively are

0 V, 10 V

10 V, 15 V

15 V, 10 V

0 V, 15 V

0 V, 10 V

10 V, 15 V

15 V, 10 V

0 V, 15 V

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MGVCL Exam Paper (30-07-2021 Shift 1)
A balanced delta connected load of 8+j6 Ω per phase is connected to a 415 V, 50 Hz, 3-phase supply lines. If the input power factor is improved to 0.9 by connecting a star connected capacitor bank, then the required kVAR of the bank is

8.98 kVAR

10.98 kVAR

16.98 kVAR

14.98 kVAR

8.98 kVAR

10.98 kVAR

16.98 kVAR

14.98 kVAR

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MGVCL Exam Paper (30-07-2021 Shift 1)
Recently, India signed first ever term contract to import crude oil with which country?

Japan

Russia

China

Nepal

Japan

Russia

China

Nepal

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MGVCL Exam Paper (30-07-2021 Shift 1)
A single phase motor connected to 400 V, 50 Hz supply takes 30 A at a power factor of 0.7 lagging. Calculate the capacitance required in parallel with the motor to raise the power factor to 0.9 lagging.

79.5 μF

69.5 μF

89.5 μF

99.5 μF

79.5 μF

69.5 μF

89.5 μF

99.5 μF

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