MGVCL Exam Paper (30-07-2021 Shift 3)
The DC offset in fault current causes conventional over-current (OC) relays to :

over-reach
reach remains unaffected due to DC offset
sometimes under-reach and sometimes over-reach
under-reach

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 3)
____ is the rms value of AC component of the current in the pole at the instant of contact separation.

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

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 3)
In a series RLC circuit, the supply voltage is 230 V at 50 Hz. The resonant current is 2 A at the resonant frequency of 50 Hz. Under the resonant condition, the voltage across the capacitor is measured to be equal to 460 V. What are the values of L and C?

0.53 mH and 15.83 pF
0.73 H and 13.85 pF
0.53 H and 15.83 pF
0.73 mH and 13.85 pF

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP
MORE MCQ ON MGVCL Exam Paper (30-07-2021 Shift 3)