MGVCL EXAM PAPER (30-07-2021 SHIFT 3) QUIZ

In a 3-phase, 4-wire, 400/230 V system, a lamp (L₁) of 100 W is connected to one phase and neutral and a lamp (L₂) of 150 W is connected to the second pahse and neutral. If the neutral wire is disconnected accidently, what will be the voltage across a 150 W lamp (L₂)?

160 V

180 V

240 V

120 v

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A delta-connected balanced three-phase load is supplied from a three phase, 400 V supply. The line current is 20 Aand the power taken by the load is 10 kW. Find the power consumed if the same load is connected in star.

3.33 W

30 W

21.77 W

16.33 W

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Arunachal Pradesh does not share its borders with which one of the following nations?

Bangladesh

China

Bhutan

Myanmar

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A DC shunt generator has an induced voltage of 220 V on open circuit. When the machine is on load the terminal voltage is 200 V. Find the load current if the field resistance is 100 Ω and armature resistance is 0.2 Ω.

96 A

104 A

98 A

102 A

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A 10-pole induction motor is supplied by a 6-pole alternator, which is driven at 1400 rpm. If the motor runs with a slip of 5%, what is its speed?

882 rpm

1425 rpm

1575 rpm

798 rpm

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Choose the word which expresses nearly the opposite meaning of the given word "DILIGENT "

Careful

Busy

Active

Lasy

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A single phase full converter bridge, connected to 230 V, 50 Hz source is feeding a load R =10 Ω in series with a large inductance that makes the load current ripple free. For a firing angle of 450, calculate the rectification efficiency.

50.55%

63.66%

76.66%

28.33%

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A 10 A, Type C Miniature Circuit Breaker (MCB) will trip at fault currents

between 50 A and 100 A

less than 10 A

between 10 A and 50 A

greater than 100 A

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Arjuna Award is awarded for the excellence in which field?

Literature

Science

Sports

Mathematics

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સાબરમતી: અમદાવાદ:: મૂસી:

હૈદરાબાદ

ગોવા

વેનિસ

લંડન

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