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

MGVCL Exam Paper (30-07-2021 Shift 2)
Choose the word which expresses nearly the opposite meaning of the given word "WHIMSICAL"

Curious
Regular
Fantastic
Funny

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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.

250 W
275 W
300 W
225 W

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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)
A circuit breaker is rated 2500 A, 2000 MVA, 33 kV, 3 sec, 3-phase oil circuit breaker. Determine the breaking current.

25 kA
2500 A
35 kA
350 kA

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Breaking capacity of circuit breaker = √3*VL*Ib
VL - line voltage in volt
IL - Line current/breaking in ampere
VL = 33 kV
S = 2000 MVA

Ib = 30*1000 (in kVA)/(√3*33)
Ib = 34.99 kA

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

IPv5
IP
IPv4
IPv6

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of the following is the committee on poverty estimation?

Ad hoc committe
S.S.Tarapore committee
Tendulkar committee
Karve committee

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MGVCL Exam Paper (30-07-2021 Shift 2)
સ્વાધીન' નો વિરોધીભાસી શબ્દ કયો છે?

નીસ્વધીન
કુવાધીન
અસ્વાધીન
પરાધીન

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