GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is lagging leading zero unity lagging leading zero unity ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Voltage regulation = ((no load voltage)-(full load voltage)/(no load voltage))VR at leading PF = ((I*R*cosφ)-(I*X*sinφ))/VVR at lagging PF = ((I*R*cosφ)+(I*X*sinφ))/V
GETCO Exam Paper (22-07-2015) Which of the following is not true about fuel cells? more efficient cost is higher than batteries need more than two electrode no recharging is needed more efficient cost is higher than batteries need more than two electrode no recharging is needed ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Oil is mostly _____ by trucks in India transmit transport transfer deliver transmit transport transfer deliver ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Normally the angle of the transmission line is kept _____ because of _____ reasons 90, transient stability 90, steady state stability 45, transient stability 45, steady state stability 90, transient stability 90, steady state stability 45, transient stability 45, steady state stability ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Penalty factor in power system economical operation is measure of all are correct generation cost Line loss fuel cost all are correct generation cost Line loss fuel cost ANSWER DOWNLOAD EXAMIANS APP
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 retarding torque presence of dead time delay High gain in a system high positive correcting torque high retarding torque presence of dead time delay High gain in a system ANSWER DOWNLOAD EXAMIANS APP
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