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

MGVCL Exam Paper (30-07-2021 Shift 2)
Rearrange the following to form a meaningful sentence and find the most logical order from the given options.
P: dancers make the company
Q: and they do not have
R: a big team of professional
S: a ‘guru shishya’ hierarchy

PQRS
PQSR
RPQS
RPSQ

ANSWER DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 2)
In the RLC series circuit shown in figure, resonance occurs when the value of C is 20 µF. The supply voltages is v(t) = 20 sin (500t) V. Find the value of L.

0.2 H
0.2 mH
5 mH
5 H

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Here,
ω = 500 rad/sec = 2πf.
At Resonance condition,
ωL = 1/(ωC)
L 0.2 H
Also at series resonace
1. fr = 1/[2π√(LC)]
2. PF = 1
3. Maximum current
4. Source voltage = voltage across resistor.

MGVCL Exam Paper (30-07-2021 Shift 2)
A MOSFET rated for 15 A, carries a periodic current as shown in figure. The ON state resistance of the MOSFET is 0.15 Ω. The average ON state loss in the MOSFET is

15 W
33.8 W
3.8 W
7.5 W

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Ip = 10 A
Ton = π
T = 2π

Iavg = Ip*√(Ton/T)
Iavg = 10*√(1/2)
= 7.07 A
The average ON state loss in MOSFET, P = Iavg²*R
P = 7.07²*0.15
P = 7.5 W

MGVCL Exam Paper (30-07-2021 Shift 2)
Which of the following is an application layer service?

Network virtual terminal
Mail service
Mail service
File transfer, access and management

ANSWER DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 2)
In the circuit shown in figure, the voltage across 8 Ω resistor is 20 V. Calculate the supply voltage.

27 V
38 V
47 V
18 V

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Equivalent resistance of the circuit,
Req = (12||18) + 8
Req = 7.2 + 8
Req = 15.2 ohm
Source current = current through 8 ohm resistor, I = Vr/R8
I = 20/8
I = 2.5 A
Supply votage V = I*Req
V = 2.5*15.2
V = 38 V

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.

6%
4%
3%
5%

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%

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

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