GETCO EXAM PAPER (30-11-2008) QUIZ

Transient stability of a power system depends on

the strength of transmission network

All of these

fault-clearing time

the short circuit ratio of generating units

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The C.B.s which produces the least arc energy are

plain oil

air break

air blast

minimum oil

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On a long high voltage transmission line with heavy load, VAR compensation can be provided by using

series capacitors

series inductive reactors

shunt inductive reactors

shunt capacitors

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If the +Ve, -Ve & zero sequence reactances of an elements of a power system are 0.3, 0.3 & 0.8 p.u. respectively, the element would be

synchronous generator

transmission line

synchronous motor

static load

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An AC transmission line requires a VAR input:

to improve the regulation

to reduce losses

to increase power transmission

to improve stability

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When transformers or switchgears are to be installed in a transmission line, the poles used are

H type

J type

I type

L type

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If a power system is transiently stable, it

both (a) & (c )

will oscillate beyond the first swing

is always dynamically stable

may be dynamically unstable

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Bulk-oil CBs can be used for voltage upto

33 kV

1.1 kV

11 kV

66 kV

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Select the most suitable word from the given choices to fill in the blanks to make the sentence meaningfully complete <br/><br/>You have _____ trouble to all of us.

resulted

done

produced

caused

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Rewirable fuse has _____ time-current characteristic

inverse

none of these

linear

square

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YOUR ANSWER : ?

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