DGVCL EXAM PAPER (11-12-2011) QUIZ

Rated making capacity of a ciruit breaker is equal to

Rated symmetrical breaking capacity

√2 X rated symmetrical breaking capacity

1.11 X rated symmetrical breaking capacity

2.55 X rated symmetrical breaking capacity

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Fot fast load flow calculations, the best method is

De-coupled method

Gauss-Siedal

Approximate method

Newton-Raphson

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In a power plant, a reserve generating capacity which is not in service but is in operation is known as

Spinning reserve

Cold reserve

Firm power

Hot reserve

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The motor used in celling fans is

Split phase motor

Capacitor start capacitor run motor

Universal motor

Capacitor start motor

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The effect of electric shock on the human body depends on

Voltage

All of these

Current

Duration of contact

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The corona effect can be minimized by increasing

Both spacing between the conductors and diameter of the conductor

Diameter of the conductor

The length of the conductor

Spacing between the conductors

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Different computers are connected to a LAN by a cable and a

Modem

Interface card

Telephone line

Special wires

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The positive and negative sequence impedance of a transmission line are

Infinite

Equal

Zero

Different

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In the protection of transformers, harmonic restraint is used to guard against

Switching over voltages

Lightning

Magnetizing inrush current

Unbalanced protection

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Kilobyte, megabyte and gigabyte are measuring units used in a computer. How many megabytes make one gigabyte?

1204

1024

1000

1042

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