GETCO Exam Paper (22-07-2015) The magnitude of sum of two sinusoidal AC voltages is equal to the magnitude of each individual voltage, What must be the phase difference between voltages? 180 60 90 120 180 60 90 120 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The mechanical angle is _____ electrical angle greater than or equal to lesser than or equal to same always less greater than or equal to lesser than or equal to same always less ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Electrical angle = (P/2)*mechanicla angle
GETCO Exam Paper (22-07-2015) In differential protection scheme, a stabilizing resistance connected to block harmonics reduce the effect of non identical CTs increase the current limit increase the relay sensitivity block harmonics reduce the effect of non identical CTs increase the current limit increase the relay sensitivity ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Slip at maximum torque depends on load current rotor resistance and reactance stator resistance stator reactance load current rotor resistance and reactance stator resistance stator reactance ANSWER EXPLANATION DOWNLOAD EXAMIANS APP at maximum torque:S=Râ‚‚/Xâ‚‚
GETCO Exam Paper (22-07-2015) Fuel cell for power generation have drawback of _____ Synchronization problems Low life span Noise, pollution and maintenance problems Very high development costs Synchronization problems Low life span Noise, pollution and maintenance problems Very high development costs ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Current chopping phenomenon is related to small inductive current capacitance switching asymmetrical current resistance switching small inductive current capacitance switching asymmetrical current resistance switching ANSWER DOWNLOAD EXAMIANS APP
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