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GETCO Exam Paper (22-07-2015)

GETCO Exam Paper (22-07-2015)
Slip at maximum torque depends on

load current
stator reactance
stator resistance
rotor resistance and reactance

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

at maximum torque:
S=R₂/X₂

GETCO Exam Paper (22-07-2015)
Fuel cell for power generation have drawback of _____

Synchronization problems
Noise, pollution and maintenance problems
Very high development costs
Low life span

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

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

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GETCO Exam Paper (22-07-2015)
During the insulation co-ordination in the sub station, the lowest insulation strength is at

CTs and PTs
bus bar
circuit breaker
transformer

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GETCO Exam Paper (22-07-2015)
Which of the following is the most likely reason for large overshoot in a control system?

high positive correcting torque
High gain in a system
presence of dead time delay
high retarding torque

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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

100
300
150
200

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

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