GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is lagging zero unity leading lagging zero unity leading 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) 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 100 200 300 150 100 200 300 150 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Switching surges are high votage DCs short duration transient voltage high voltage Acs power frequency voltage high votage DCs short duration transient voltage high voltage Acs power frequency voltage ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For formation of the Y bus matrix (using node voltage analysis) in power system network modelling _____ is used Faraday's law KVL all are correct KCL Faraday's law KVL all are correct KCL ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Fuel cell for power generation have drawback of _____ Noise, pollution and maintenance problems Very high development costs Synchronization problems Low life span Noise, pollution and maintenance problems Very high development costs Synchronization problems Low life span ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Who is the vice president of India? (As on 22/07/2015) O.P. Kohli Pranav Mukharjee Dr. Hamid Ansari Nazama heptulla O.P. Kohli Pranav Mukharjee Dr. Hamid Ansari Nazama heptulla ANSWER DOWNLOAD EXAMIANS APP
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