Murray loop test is performed on a faulty cable 300 m long. At balance, the resistance connected to the faulty core was set at 15 Ω and the resistance of the resistor connected to the sound core was 45 Ω. Calculate the distance of the fault point from the test end.

MGVCL Exam Paper (30-07-2021 Shift 1)
Murray loop test is performed on a faulty cable 300 m long. At balance, the resistance connected to the faulty core was set at 15 Ω and the resistance of the resistor connected to the sound core was 45 Ω. Calculate the distance of the fault point from the test end.

150 m

225 m

450 m

75 m

150 m

225 m

450 m

75 m

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MGVCL Exam Paper (30-07-2021 Shift 1)
In computer networks, the nodes are

the computer that terminates data

the computer that routes data

all the mentioned above

the computer that originates data

the computer that terminates data

the computer that routes data

all the mentioned above

the computer that originates data

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MGVCL Exam Paper (30-07-2021 Shift 1)
A grid interactive solar system:

always receives power from the grid

supplies power to as well as receives power from the grid as required

always supplies power to the grid

works only when the grid fails

always receives power from the grid

supplies power to as well as receives power from the grid as required

always supplies power to the grid

works only when the grid fails

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MGVCL Exam Paper (30-07-2021 Shift 1)
As per _ guidelines, if the ratio of carbon dioxide (CO₂) and carbon monoxide (CO) in dissolved gas analysis is _, it is predicted that the condition of paper insulation inside the transformer is poor.

IEC-599, more than 11

IEC-599, less than 11

IEC-899, less than 11

IEC-899, more than 11

IEC-599, more than 11

IEC-599, less than 11

IEC-899, less than 11

IEC-899, more than 11

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MGVCL Exam Paper (30-07-2021 Shift 1)
Stability of power system can be improved by
1. Reducing voltage of transmission
2. Using parallel transmission lines
3. Using series compensators
Which of the above statements are correct?

All 1, 2 and 3

2 and 3 only

1 and 2 only

1 and 3 only

All 1, 2 and 3

2 and 3 only

1 and 2 only

1 and 3 only

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MGVCL Exam Paper (30-07-2021 Shift 1)
Three equal star-connected inductors take 8 kW at 0.8 power factor when connected to a 460 V three - phase 3-wire supply. If one of the inductor in phase – Y is short circuited, then the line current in phase-Y is ___ Assume RYB sequence.

31.7 A

21.7 A

37.6 A

27.6 A

31.7 A

21.7 A

37.6 A

27.6 A

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

MGVCL Exam Paper (30-07-2021 Shift 1) In computer networks, the nodes are

MGVCL Exam Paper (30-07-2021 Shift 1) A grid interactive solar system:

MGVCL Exam Paper (30-07-2021 Shift 1) As per ___ guidelines, if the ratio of carbon dioxide (CO₂) and carbon monoxide (CO) in dissolved gas analysis is ___, it is predicted that the condition of paper insulation inside the transformer is poor.

MGVCL Exam Paper (30-07-2021 Shift 1) Stability of power system can be improved by1. Reducing voltage of transmission2. Using parallel transmission lines3. Using series compensatorsWhich of the above statements are correct?

MGVCL Exam Paper (30-07-2021 Shift 1) Three equal star-connected inductors take 8 kW at 0.8 power factor when connected to a 460 V three - phase 3-wire supply. If one of the inductor in phase – Y is short circuited, then the line current in phase-Y is ___ Assume RYB sequence.

MGVCL Exam Paper (30-07-2021 Shift 1)
In computer networks, the nodes are

MGVCL Exam Paper (30-07-2021 Shift 1)
A grid interactive solar system:

MGVCL Exam Paper (30-07-2021 Shift 1)
As per _ guidelines, if the ratio of carbon dioxide (CO₂) and carbon monoxide (CO) in dissolved gas analysis is _, it is predicted that the condition of paper insulation inside the transformer is poor.

MGVCL Exam Paper (30-07-2021 Shift 1)
Stability of power system can be improved by
1. Reducing voltage of transmission
2. Using parallel transmission lines
3. Using series compensators
Which of the above statements are correct?

MGVCL Exam Paper (30-07-2021 Shift 1)
Three equal star-connected inductors take 8 kW at 0.8 power factor when connected to a 460 V three - phase 3-wire supply. If one of the inductor in phase – Y is short circuited, then the line current in phase-Y is ___ Assume RYB sequence.