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GETCO Exam Paper (30-11-2008)

GETCO Exam Paper (30-11-2008)
An AC transmission line requires a VAR input:

to reduce losses
to increase power transmission
to improve stability
to improve the regulation

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GETCO Exam Paper (30-11-2008)
If a combination of HRC fuse and a C.B. is employed, the C.B. operates for

short circuit currents
under all abnormal currents
this combination is never employed in practice
low over load currents

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GETCO Exam Paper (30-11-2008)
The number of pilot wires required for protecting 3-phase transmission lines using Translay System of protection is

4
6
2
3

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GETCO Exam Paper (30-11-2008)
Transient stability of a power system depends on

the strength of transmission network
All of these
the short circuit ratio of generating units
fault-clearing time

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GETCO Exam Paper (30-11-2008)
If a power system is transiently stable, it

may be dynamically unstable
is always dynamically stable
will oscillate beyond the first swing
both (a) & (c )

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GETCO Exam Paper (30-11-2008)
The planning Commission was set up in

January, 1948
March,1950
September, 1947
April, 1947

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