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

MGVCL Exam Paper (30-07-2021 Shift 1)
Calculate the capacitance per meter of a 50 Ω load cable that has an inductance of 50 nH/m.

30 pF
10 pF
40 pF
20 pF

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Z = √(L/C)
C = L/Z²
C = 50*10⁻⁹/(50*50)
C = 0.02 nF
C = 20 pF

MGVCL Exam Paper (30-07-2021 Shift 1)
The Prime Minister Rozgar Yojana (PMRY) was launched in which year?

2003
1995
1993
2005

ANSWER DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 1)
An eight-pole wave-connected armature has 600 conductors and is driven at 625 rev/min. If the flux per pole is 20 mWb, determine the generated emf.

250 V
125 V
500 V
325 V

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let,
E→EMF in volt
φ→Flux in weber
A→Parallel path (for wave winding = 2)
Z→No. of armature conductors
N→speed in rpm
P = Number of poles
E = PφNZ/(60A)
E = 8*0.020*625/(60*2)
E = 500 V

MGVCL Exam Paper (30-07-2021 Shift 1)
Find the word which is correctly spelt from the given options.

Benifited
Suppresed
Dimnished
Ambience

ANSWER DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 1)
At what range of wind speed is the electricity from the wind turbine is generated?

450 – 650 mph
30-35 mph
100 – 125 mph
250 – 450 mph

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

For small turbine starts generating power 12.6 kph (3.5 m/s) is the typical cut-in speed.
At 36–54 kph (10–15 m/s) produces maximum generation power.
At 90 kph (25 m/s) maximum, the turbine is stopped or braked.

MGVCL Exam Paper (30-07-2021 Shift 1)
A transformer designed for operation at 60 Hz supply is working at 50 Hz supply system without changing its voltage and current ratings. Compared to the full load efficiency at 60 Hz, the full load transformer efficiency at 50 Hz.

increases marginally
decreases marginally
remains unaltered
increases by 30%

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

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