GATE EE 1998 | GATE EE Year Wise Previous Years Questions

GATE EE 1998

MCQ (Single Correct Answer)

-0.6

When the firing angle $$\alpha $$ of a single phase, fully controlled rectifier feeding constant $$d.c.$$ current into a load is $${30^ \circ }$$ , the displacement power factor of the rectifier is

$$1$$

$$0.5$$

$${1 \over {\sqrt 3 }}$$

$${{\sqrt 3 } \over 2}$$

GATE EE 1998

MCQ (Single Correct Answer)

-0.6

A $$3$$-phsae, fully controlled, converter is feeding power into a $$d.c.$$ load at a constant current of $$150A.$$ The $$r.m.s$$ current through each thyristor of the converter is

$$50A$$

$$100A$$

$${{150\sqrt 2 } \over {\sqrt 3 }}$$

$${{150} \over {\sqrt 3 }}$$

GATE EE 1998

MCQ (Single Correct Answer)

-0.3

The reflection coefficient for the transmission line shown in figure at $$P$$ is GATE EE 1998 Power System Analysis - Parameters and Performance of Transmission Lines Question 86 English

GATE EE 1998 Power System Analysis - Parameters and Performance of Transmission Lines Question 86 English

$$ + 1$$

$$ - 1$$

$$0$$

$$0.5$$

GATE EE 1998

MCQ (Single Correct Answer)

-0.3

Series capacitive compensation in $$EHV$$ transmission lines is used to

Reduce the line loading

Improve the stability of the system

Reduce the voltage profile

Improve the protection of the line.

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