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GETCO Exam Paper (22-07-2015)

GETCO Exam Paper (22-07-2015)
The national song of India was composed by

Rabindranath Tagore
Jai Shankar Prasad
Iqbal
Bankim Chandra Chatterji

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GETCO Exam Paper (22-07-2015)
Select the wrong statement from the following in relation to power flow analysis

Approximation is used in FDLF method
Y Bus is required for power flow analysis
jacobian is always required
No of ittretion in N R method can not be more than 30 for any system

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

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

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GETCO Exam Paper (22-07-2015)
An over-current relay of current rating 5 A and setting 150% is connected to a 200/5 A CT. Then the relay to pickup, the line current required is

150
100
300
200

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GETCO Exam Paper (22-07-2015)
The area under the load duration curve represents

Maximum demand of the power station
average load of the system
base load of the system
energy generated in the period considered

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GETCO Exam Paper (22-07-2015)
Two watt meter method for 3 phase circuit is preferred over other methods because

it can be used for balanced or unbalanced load
it can be used for star or delta connected load
all are correct
PF of the load can also be estimated

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