Which one of the following statement with respect to Aerial Bunched Cables (ABC) system is TRUE?

MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of the following statement with respect to Aerial Bunched Cables (ABC) system is TRUE?

The overall cost of the ABC system is very high as compared to the bare conductor system.

ABC system totally eliminates the fault on lines and thereby improving the quality of supply.

ABC system is not suitable for rural electrification which are situated in difficult terrain, hills, forests and coastal areas.

ABC system requires more clearance, insulators and high maintenance.

The overall cost of the ABC system is very high as compared to the bare conductor system.

ABC system totally eliminates the fault on lines and thereby improving the quality of supply.

ABC system is not suitable for rural electrification which are situated in difficult terrain, hills, forests and coastal areas.

ABC system requires more clearance, insulators and high maintenance.

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of these is not a monitoring and diagnostic test for transformer oil?

Volatility Level Analysis

Dissolved Gas Analysis

Dissolved Metals Analysis

Furanic Compound Analysis

Volatility Level Analysis

Dissolved Gas Analysis

Dissolved Metals Analysis

Furanic Compound Analysis

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MGVCL Exam Paper (30-07-2021 Shift 2)
A circular loop has its radius increasing at a rate of 2 m/s. The loop is placed perpendicular to a constant magnetic field of 0.1 Wb/m². When the radius of the loop is 2 m, the emf induced in the loop will be

0.4π V

0.8π V

zero

0.2π V

0.4π V

0.8π V

zero

0.2π 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

(ii) and (iii) only

(i) and (iii) only

(i), (ii) and (iii)

(i) and (ii) only

(ii) and (iii) only

(i) and (iii) only

(i), (ii) and (iii)

(i) and (ii) only

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MGVCL Exam Paper (30-07-2021 Shift 2)
A generating station having 'n' section busbars each rated at Q kVA with ×% reactance is connected on the tie-bars systems through busbar reactances of b%. Determine the short circuit kVA if a 3-phase fault takes place on one section.

Q[(1/x) + (n-1)/(bn+x)]

Q[(1/x) + (n+1)/(bn-x)]

Q[(1/x) + (n+1)/(bn+x)]

Q[(1/x) - (n+1)/(bn-x)]

Q[(1/x) + (n-1)/(bn+x)]

Q[(1/x) + (n+1)/(bn-x)]

Q[(1/x) + (n+1)/(bn+x)]

Q[(1/x) - (n+1)/(bn-x)]

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MGVCL Exam Paper (30-07-2021 Shift 2)
A single phase motor connected to 415 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.

96.32 µF

76.32 µF

66.32 µF

86.32 µF

96.32 µF

76.32 µF

66.32 µF

86.32 µF

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

MGVCL Exam Paper (30-07-2021 Shift 2) Which one of the following statement with respect to Aerial Bunched Cables (ABC) system is TRUE?

MGVCL Exam Paper (30-07-2021 Shift 2) Which one of these is not a monitoring and diagnostic test for transformer oil?

MGVCL Exam Paper (30-07-2021 Shift 2) A circular loop has its radius increasing at a rate of 2 m/s. The loop is placed perpendicular to a constant magnetic field of 0.1 Wb/m². When the radius of the loop is 2 m, the emf induced in the loop will be

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) A generating station having 'n' section busbars each rated at Q kVA with ×% reactance is connected on the tie-bars systems through busbar reactances of b%. Determine the short circuit kVA if a 3-phase fault takes place on one section.

MGVCL Exam Paper (30-07-2021 Shift 2) A single phase motor connected to 415 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.

MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of the following statement with respect to Aerial Bunched Cables (ABC) system is TRUE?

MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of these is not a monitoring and diagnostic test for transformer oil?

MGVCL Exam Paper (30-07-2021 Shift 2)
A circular loop has its radius increasing at a rate of 2 m/s. The loop is placed perpendicular to a constant magnetic field of 0.1 Wb/m². When the radius of the loop is 2 m, the emf induced in the loop will be

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)
A generating station having 'n' section busbars each rated at Q kVA with ×% reactance is connected on the tie-bars systems through busbar reactances of b%. Determine the short circuit kVA if a 3-phase fault takes place on one section.

MGVCL Exam Paper (30-07-2021 Shift 2)
A single phase motor connected to 415 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.