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GETCO Exam Paper (30-11-2008)

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

breaking
switching
none of these
sensing

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GETCO Exam Paper (30-11-2008)
Two transformers are connected in parallel and share loads in the ratio of their kVA ratings when their ohmic impedances are

purely reactive
equal
in direct ratio of their ratings
in inverse ratio of their ratings

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

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

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GETCO Exam Paper (30-11-2008)
In a dry type transformer, accumulation of dust on the windings and core is likely to cause

short circuiting of primary winding
short circuiting of secondary winding
corrosion of core material
reduction in heat dissipation

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GETCO Exam Paper (30-11-2008)
A material best suited for manufacturing of fuse wire is

aluminium
copper
silver
zinc

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

Diboi
Bombay (Mumbai)
Barauni
Vishakhapatnam

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