MGVCL Exam Paper (30-07-2021 Shift 2)
A 3-phase motor load has a p.f. of 0.397 lagging. The two wattmeter method used to measure power show the input as 30 kW. Find the reading on each wattmeter.

W1 = 10 kW and W2 = 20 kW
W1 = -5 kW and W2 = 35 kW
W1 = 5 kW and W2 = 25 kW
W1 = -10 kW and W2 = 40 kW

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

automatic reclosing
All of these
substation reactive power control
feeder remote point voltage control

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

ABC system is not suitable for rural electrification which are situated in difficult terrain, hills, forests and coastal areas.
ABC system totally eliminates the fault on lines and thereby improving the quality of supply.
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.

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 2)
A coil having an inductance of 100 mH is magnetically coupled to another coil having an inductance of 900 mH. The coefficient of coupling between the coils is 0.45. Calculate the equivalent inductance if the two coils are connected in series opposing.

932 mH
730 mH
1135 mH
1270 mH

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP