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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:

10
0.5
100
1

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GETCO Exam Paper (22-07-2015)
Differential equation is required to be solved in _____

economical operation of power systems
Finding efficiency of a transmission line
Load flow studies
Stability studies

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GETCO Exam Paper (22-07-2015)
Calculate torque developed by the 3-phase, 5 HP, 4 pole induction motor runs at 1500 rpm

22 N-m
0 N-m
10 N-m
23.5 N-m

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

P = 2πTN/60 where N is speed in rpm

GETCO Exam Paper (22-07-2015)
When the load is suddenly increased in the receiving end of the system, the phase shift will

increase
Not affected
decrease
remains same

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GETCO Exam Paper (22-07-2015)
The mechanical angle is _____ electrical angle

always less
lesser than or equal to
greater than or equal to
same

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Electrical angle = (P/2)*mechanicla angle

GETCO Exam Paper (22-07-2015)
Oil is mostly _____ by trucks in India

transport
transmit
transfer
deliver

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