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GETCO Exam Paper (22-07-2015)

GETCO Exam Paper (22-07-2015)
The PU impedance of a 1089 MVA, 33 kV generator is 1, the ohmic value of its impedance is:

1
10
0.5
100

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GETCO Exam Paper (22-07-2015)
For given kVAR and line voltage the ratio of star to delta value of capacitor is

1
1.73
0.33333333333333
3

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GETCO Exam Paper (22-07-2015)
In a given current transformer, If permissible current ratio error rated primary current is 5% the CT is suitable for

both measuring and protection
as power transformer
measuring purpose
protection purpose

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GETCO Exam Paper (22-07-2015)
The Y bus matrix is a sparse matrix because …

lines are connected to less no. of buses
no of lines are less
Y primitive is a sparse matrix
bus incidence matrix is a sparse matrix

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GETCO Exam Paper (22-07-2015)
In which of the following festivals are boat races a special feature?

Rongali Bihu
Pongal
Onam
Navaratri

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GETCO Exam Paper (22-07-2015)
For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be

7\8
5\6
6\7
2\3

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

fractional pitch = Cos( α/2)
α is obtain from: (nα/2)=90˚ where n is harmonic
α=25.7143˚
fractional pitch=6/7

MORE MCQ ON GETCO Exam Paper (22-07-2015)

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