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

MGVCL Exam Paper (30-07-2021 Shift 3)
In transformer testing, Sweep Frequency Response Analysis (SFRA) testing is a tool to help locate ____

All of these

Winding damage

Short circuits

Core movement

All of these

Winding damage

Short circuits

Core movement

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MGVCL Exam Paper (30-07-2021 Shift 3)
In a power network, 375 kV is recorded at a 400 kV bus. A 45 MVAR, 400 kV shunt reactor is connected to the bus. What is the reactive power absorbed by the shunt reactor?

59.55 MVAR

49.55 MVAR

39.55 MVAR

69.55 MVAR

59.55 MVAR

49.55 MVAR

39.55 MVAR

69.55 MVAR

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MGVCL Exam Paper (30-07-2021 Shift 3)
Which of the following statements are correct?
(i) Advanced metering infrastructure (AMI) is typically more automated and allows real- time, on-demand interrogations with metering endpoints.
(ii) An Automated Meter Reading (AMR) device only communicates from the customer to the energy supplier.
(iii) AMR meters only provide kWh information and possible peak kW demand for the month.

(ii) and (iii) only

(i), (ii) and (iii)

(i) and (iii) only

(i) and (ii) only

(ii) and (iii) only

(i), (ii) and (iii)

(i) and (iii) only

(i) and (ii) only

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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.

0.5 H

1.25 H

0.75 H

0.25 H

0.5 H

1.25 H

0.75 H

0.25 H

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

Security

All of these

Devices Management

Process Management

Security

All of these

Devices Management

Process Management

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MGVCL Exam Paper (30-07-2021 Shift 3)
Consider the following statements and choose the correct option.
Statement 1: DVR (Dynamic Voltage Restorer) is a series compensation device.
Statement 2: DVR protects sensitive electric load from power quality problems such as voltage sags, swells, unbalance and distortion through power electronic controllers."
Statement 2: In a synchronous motor, at no-load condition, and with normal excitation the armature current

Both Statement 1 and Statement 2 are FALSE

Both Statement 1 and Statement 2 are TRUE

Statement 1 is TRUE and Statement 2 is FALSE

Statement 1 is FALSE and Statement 2 is TRUE

Both Statement 1 and Statement 2 are FALSE

Both Statement 1 and Statement 2 are TRUE

Statement 1 is TRUE and Statement 2 is FALSE

Statement 1 is FALSE and Statement 2 is TRUE

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