MGVCL Exam Paper (30-07-2021 Shift 1)
Insulation Power Factor testing on an oil-filled transformer is not helpful in determining ___

Condition of paper insulation (change in watts losses)
Turns ratio values
Whether the oil test indicates moisture
Movement of the windings (change in capacitance)

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 1)
___ is the rms value of the total current comprising the AC and DC components of the current in the circuit breaker pole at the instant of contact separation.

Symmetrical breaking current
Asymmetrical breaking current
Symmetrical short circuit current
Making current

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

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

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 1)
For sea water with σ = 5 mho/m and ε_r = 80, what is the distance for which ratio signal can be transmitted with 90% attenuation at 25 kHz?

3.27 m
327 m
32.7 m
0.327 m

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP