MGVCL EXAM PAPER (30-07-2021 SHIFT 2) QUIZ

A three-phase 400 V, 6-pole, 50 Hz squirrel-cage induction motor is running at a slip of 5%. The speed of rotor with respect to stator magnetic field and speed of the stator magnetic field with respect to rotor magnetic field are

950 rpm, 1000 rpm

-50 rpm, zero

-50 rpm, 1000 rpm

950 rpm, zero

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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, then

100 W lamp (L1) becomes brighter and 150 W lamp (L2) becomes dim

both 100 W lamp (L1) and 150 W lamp (L2) becomes brighter

100 W lamp (L1) becomes dim and 150 W lamp (L2) becomes brighter

both 100 W lamp (L1) and 150 W lamp (L2) becomes dim

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A 1000 kVA ONAN cooled transformer has a load of 500 kVA throughout the day except for a period of 4 hours. What is the permissible overload for a duration of four hours. Assume the permissible load kVA as a fraction of rated kVA is 1.24.

2480 kVA

1240 kVA

930 kVA

620 kVA

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Recently, India and Benin signed MoUs on education, health and ____

Defence

e-visa facilities

Against Corruption

Trading

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Which one of the following statement is TRUE?

Underground cables are laid at sufficient depth to avoid being unearthed easily due to removal of soil.

The current carrying capacity of cables in DC is less than that in AC.

In the cables, the location of fault is usually found out by comparing the capacitances of insulated conductors.

In the cables, sheaths are used to provide enough strength.

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Fill in the blanks with suitable Article from the given alternatives.<br/>I heard ____interesting story yesterday

a

the

an

No article

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Recently, which country has withdrawn the 'Generalized System of Preferences' with India?

Pakistan

Russia

United States of America

Peru

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Match the following shown in figure

A = (i) & (3)

B = (ii) & (1)

C = (ii) & (1)

A = (iii) & (2)

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In a power network, 400 kV is recorded at a 415 kV bus. A 50 MVAR, 415 kV shunt reactor is connected to the bus. What is the reactive power absorbed by the shunt reactor?

46.45 MVAR

76.45 MVAR

66.45 MVAR

56.45 MVAR

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In the context of smart meters, the term 'SMETS' stand for

Standard Metering Equipment Technical Specifications

Smart Monitoring Equipment Technical Specifications

Smart Metering Equipment Technical Specifications

Standard Monitoring Equipment Technical Specifications

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