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

730 mH
932 mH
1270 mH
1135 mH

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 1)
A THHN conductor will have 75°C termination on one end and a 60/75°C termination on the other, which ampacity column will be used?

None of these
60°C column
75°C column
90°C column

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 1)
Case 1: The PV connected to the DC bus was injecting 20 kW of power constituting of 1 kW of loss
Case 2: The same PV is connected to the AC bus constituting to 1.5 kW loss. Find out the change in efficiency from Case 1 to Case 2?

2.5% decrease
2.5% increase
5% decrease
5% increase

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 1)
Voltage dips cannot be caused by which of the following:

Switching on of Large Loads
Capacitive Switching
Inductive Loading
Local and Remote faults

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 1)
While selecting the gas for a circuit breaker, the property of gas that should be considered is its
(i) dielectric strength
(ii) non-inflammability
(iii) non-toxicity

(i) and (iii) only
(i), (ii) and (iii)
(i) and (ii) only
(i) only

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP
MORE MCQ ON MGVCL Exam Paper (30-07-2021 Shift 1)