In transformer, bushing failure occurs due to<br/>(i) transformer vibrations<br/>(ii) dielectric losses<br/>(ii) partial discharge

MGVCL Exam Paper (30-07-2021 Shift 2)
In transformer, bushing failure occurs due to
(i) transformer vibrations
(ii) dielectric losses
(ii) partial discharge

(i) and (ii) only

(i) and (iii) only

(i), (ii) and (iii)

(ii) and (iii) only

(i) and (ii) only

(i) and (iii) only

(i), (ii) and (iii)

(ii) and (iii) only

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which of the following does the term 'feeder automation' include?

substation reactive power control

feeder remote point voltage control

automatic reclosing

All of these

substation reactive power control

feeder remote point voltage control

automatic reclosing

All of these

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MGVCL Exam Paper (30-07-2021 Shift 2)
In a power network, 400 kV is recorded at a 415 kV bus. A 50 MVAR, 415 kV shunt reactor is connected to the bus. What is the reactive power absorbed by the shunt reactor?

46.45 MVAR

56.45 MVAR

66.45 MVAR

76.45 MVAR

46.45 MVAR

56.45 MVAR

66.45 MVAR

76.45 MVAR

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MGVCL Exam Paper (30-07-2021 Shift 2)
In the circuit shown in figure, the voltage across 8 Ω resistor is 20 V. Calculate the supply voltage.

38 V

18 V

27 V

47 V

38 V

18 V

27 V

47 V

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MGVCL Exam Paper (30-07-2021 Shift 2)
A power factor less than unity results in which of the following disadvantages?
(i) Large kVA rating of equipment
(ii)Poor voltage regulation
(iii) Greater conductor size

(i) and (ii) only

(i), (ii) and (iii)

(ii) and (iii) only

(i) and (iii) only

(i) and (ii) only

(i), (ii) and (iii)

(ii) and (iii) only

(i) and (iii) only

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of the following statement is TRUE?

In the cables, the location of fault is usually found out by comparing the capacitances of insulated conductors.

The current carrying capacity of cables in DC is less than that in AC.

Underground cables are laid at sufficient depth to avoid being unearthed easily due to removal of soil.

In the cables, sheaths are used to provide enough strength.

In the cables, the location of fault is usually found out by comparing the capacitances of insulated conductors.

The current carrying capacity of cables in DC is less than that in AC.

Underground cables are laid at sufficient depth to avoid being unearthed easily due to removal of soil.

In the cables, sheaths are used to provide enough strength.

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MGVCL Exam Paper (30-07-2021 Shift 2)

MGVCL Exam Paper (30-07-2021 Shift 2) In transformer, bushing failure occurs due to(i) transformer vibrations(ii) dielectric losses(ii) partial discharge

MGVCL Exam Paper (30-07-2021 Shift 2) Which of the following does the term 'feeder automation' include?

MGVCL Exam Paper (30-07-2021 Shift 2) In a power network, 400 kV is recorded at a 415 kV bus. A 50 MVAR, 415 kV shunt reactor is connected to the bus. What is the reactive power absorbed by the shunt reactor?

MGVCL Exam Paper (30-07-2021 Shift 2) In the circuit shown in figure, the voltage across 8 Ω resistor is 20 V. Calculate the supply voltage.

MGVCL Exam Paper (30-07-2021 Shift 2) A power factor less than unity results in which of the following disadvantages?(i) Large kVA rating of equipment(ii)Poor voltage regulation(iii) Greater conductor size

MGVCL Exam Paper (30-07-2021 Shift 2) Which one of the following statement is TRUE?

MGVCL Exam Paper (30-07-2021 Shift 2)
In transformer, bushing failure occurs due to
(i) transformer vibrations
(ii) dielectric losses
(ii) partial discharge

MGVCL Exam Paper (30-07-2021 Shift 2)
Which of the following does the term 'feeder automation' include?

MGVCL Exam Paper (30-07-2021 Shift 2)
In a power network, 400 kV is recorded at a 415 kV bus. A 50 MVAR, 415 kV shunt reactor is connected to the bus. What is the reactive power absorbed by the shunt reactor?

MGVCL Exam Paper (30-07-2021 Shift 2)
In the circuit shown in figure, the voltage across 8 Ω resistor is 20 V. Calculate the supply voltage.

MGVCL Exam Paper (30-07-2021 Shift 2)
A power factor less than unity results in which of the following disadvantages?
(i) Large kVA rating of equipment
(ii)Poor voltage regulation
(iii) Greater conductor size

MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of the following statement is TRUE?