GATE EE 1998 | GATE EE Year Wise Previous Years Questions

GATE EE 1998

MCQ (Single Correct Answer)

-0.6

The neutral of $$10$$ $$MVA,$$ $$11$$ $$kV$$ alternator is earthed through a resistance of $$5$$ ohms. The earth fault relay is set to operate at $$0.75$$ $$A.$$ The $$CT's$$ have a ratio of $$1000/5.$$ What percentage of the alternator winding is protected?

$$85$$%

$$88.2$$%

$$15$$%

$$11.8$$%

GATE EE 1998

MCQ (Single Correct Answer)

-0.3

Bulk power transmission over long HVDC lines are preferred, on account of

low cost of HVDC treminals

no harmonic problems

minimum line power losses

simple protection

GATE EE 1998

MCQ (Single Correct Answer)

-0.6

The Laplace transform of $$\left(t^2\;-\;2t\right)u\left(t\;-\;1\right)$$ is

$$\frac2{s^3}e^{-s}\;-\;\frac2{s^2}e^{-s}$$

$$\frac2{s^3}e^{-2s}\;-\;\frac2{s^2}e^{-s}$$

$$\frac2{s^3}e^{-s}\;-\;\frac1se^{-s}$$

None of the above

GATE EE Papers

2023