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MGVCL Exam Paper (30-07-2021 Shift 2)

MGVCL Exam Paper (30-07-2021 Shift 2)
Who started the daily newspaper 'National Herald' in 1938?

Subhas Chandra Bose
Dadabhai Naoroji
Jawaharlal Nehru
Ram Mohan Roy

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MGVCL Exam Paper (30-07-2021 Shift 2)
What is the full form of the acronym 'AIDS' in diseases?

Acquired Immune Deficiency Syndrome
Amino Intersect Deficiency Syndrome
Acquire in Deficiency Syndrome
Assert in Dander Syndrome

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MGVCL Exam Paper (30-07-2021 Shift 2)
In transformer, bushing failure occurs due to
(i) transformer vibrations
(ii) dielectric losses
(ii) partial discharge

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

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MGVCL Exam Paper (30-07-2021 Shift 2)
A wire pilot is generally economical for distances up to

75 km to 100 km
10 km to 15 km
20 to 25 km
30 km to 60 km

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

A wire pilot is generally economical for distances up to 5 or 10 miles, beyond which a carrier-current pilot usually becomes more economical.

MGVCL Exam Paper (30-07-2021 Shift 2)
A three-phase, 4-pole, 50 Hz induction motor runs at 1425 rpm. Find out the percentage slip of the induction motor.

3%
4%
5%
6%

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Slip, s = (Ns - Nr)/Ns
Ns = 120f/P
Ns = 1500 rpm

s = (1500 - 1425)/1500
s = 0.05
%s = 5%

MGVCL Exam Paper (30-07-2021 Shift 2)
A 1000 kVA ONAN cooled transformer has a load of 500 kVA throughout the day except for a period of 4 hours. What is the permissible overload for a duration of four hours. Assume the permissible load kVA as a fraction of rated kVA is 1.24.

1240 kVA
2480 kVA
930 kVA
620 kVA

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Permissible overload = Full load kVA*factor for permissible load
= 1000*1.24
= 1240 kVA

MORE MCQ ON MGVCL Exam Paper (30-07-2021 Shift 2)

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