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GETCO Exam Paper (30-11-2008)

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
2
3
6

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GETCO Exam Paper (30-11-2008)
The voltage regulation of a transformer at full load and 0.8 power factor lagging is 2.5%. The voltage regulation at full load, 0.8 power factor leading will be

0.01
2.5%
zero
-2.5%

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

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

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GETCO Exam Paper (30-11-2008)
The first oil refinery in India was set up at

Vishakhapatnam
Diboi
Barauni
Bombay (Mumbai)

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GETCO Exam Paper (30-11-2008)
In the protection scheme relay functions as _____ device

switching
sensing
none of these
breaking

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GETCO Exam Paper (30-11-2008)
The disadvantage of transmission lines as compared to cables is

exposure to atmosphere hazards like smoke, ice, etc.
exposure to lightening
inductive interference between power communication circuits
All of these

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