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

MGVCL Exam Paper (30-07-2021 Shift 2)
Vikram Seth is associated with which of the following fields?

Literature
Politician
Music
Sports

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MGVCL Exam Paper (30-07-2021 Shift 2)
Encrypted security payload extension header is new in

IPv5
IPv6
IPv4
IP

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which of the following is linux operating system?

IBM-AIX
MacOS
Fedora
HP-UX

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MGVCL Exam Paper (30-07-2021 Shift 2)
A single phase 240 V, 1 kW heater is connected across single phase 240 V, 50 Hz supply through an SCR. For firing angle delay of 90˚, calculate the power absorbed in the heater element.

275 W
250 W
300 W
225 W

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Resistance of heater, R = V²/P
R = 57.6 ohm

RMS value of voltage through controlled SCR = (Vm/2π)*(1 + cosα)
= 120 V

Power absorb by heater = Vrms²/R
= 120²/57.6
= 250 W

MGVCL Exam Paper (30-07-2021 Shift 2)
In a synchronous motor with field under excited, the power factor will be

lagging
leading
unity
zero

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

For synchronous motor,
Under excitation - Lagging power factor
Over excitation - Leading power factor

For synchronous generator
Under excitation - Leading power factor
Over excitation - lagging power factor

MGVCL Exam Paper (30-07-2021 Shift 2)
If all the devices are connected to a central hub, then the topology is called

Star Topology
Tree Topology
Bus Topology
Tree Topology

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

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