GATE EE 1999 | GATE EE Year Wise Previous Years Questions

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GATE EE 1999

MCQ (Single Correct Answer)

-0.3

Corona losses are minimized when

Conductor size is reduced.

Smooth conductor is reduced.

Sharp points are provided in the line hardware.

Current density in conductors is reduced.

GATE EE 1999

MCQ (Single Correct Answer)

-0.3

The load carrying capability of a long AC transmission line is

Always limited by the conductor size

Limited by stability considerations.

Reduced at a low ambient temperatures.

Decreased by the use of bundled conductors of single conductors.

GATE EE 1999

MCQ (Single Correct Answer)

-0.6

For a single phase overhead line having solid copper conductors of diameter $$1$$ cm, spaced $$60$$ cm between centers, the inductance in $$mH/km$$ is

$$0.05+0.2$$ $$ln$$ $$60$$

$$0.2$$ $$ln$$ $$60$$

$$0.05+0.2$$ $$ln$$ $$(60/0.5)$$

$$0.2$$ $$ln$$ $$(60/0.5)$$

GATE EE 1999

MCQ (Single Correct Answer)

-0.6

A 3-phase, 11 kV, 50 Hz, 200 kW load has a power factor of 0.8 lag. A delta connected 3-phase capacitor is used to improve the power factor to unity. The capacitance power phase of the capacitor in micro-farads is

3.948

1.316

0.439

11.844

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