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

MGVCL Exam Paper (30-07-2021 Shift 1)
An electric potential field is produced in air by point 1 μC and 4 μC located at (-2, 1, 5) and (1, 3, -1) respectively. The energy stored in the field is

10.28 mJ
5.14 mJ
12.50 mJ
2.57 mJ

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MGVCL Exam Paper (30-07-2021 Shift 1)
Which of the following is the layer of a computer system between the hardware and the user program?

None of these
Application Software
System Environment
Operating System

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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.

remains unaltered
increases marginally
decreases marginally
increases by 30%

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MGVCL Exam Paper (30-07-2021 Shift 1)
The operating time of an inverse definite minimum time (IDMT) overcurrent relay corresponding to plug-setting multiplier (PSM) = 1 and time-multiplier setting (TMS) = 1 will be

3 sec
zero
infinite
1 sec

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Equation of operating time for IDMT relay (t) = 0.14*TMS/[(PSM^0.02) - 1]
Here,
PSM = TMS = 1
So,
t = 0.14*1/(1 - 1)
t = infinite

MGVCL Exam Paper (30-07-2021 Shift 1)
In computer networks, the nodes are

the computer that routes data
the computer that terminates data
the computer that originates data
all the mentioned above

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MGVCL Exam Paper (30-07-2021 Shift 1)
નીચે પૈકી 'અચરજ'નો પર્યાયી શબ્દ ક્યો છે?

રજ
વિસ્મય
જગત
શાશ્વત

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