GETCO Exam Paper (22-07-2015) Stray loss is equal to _____ field copper loss & iron loss copper loss and iron loss frictional loss & copper loss mechanical loss & iron loss field copper loss & iron loss copper loss and iron loss frictional loss & copper loss mechanical loss & iron loss ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Answer in official key is “mechanical loss & iron loss ”.Many times stray loss is also considered as total loss actually accured minus calculatable loss. This means loss that can be calculated is known as stray loss.
GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is leading zero unity lagging leading zero unity lagging 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) Oil is mostly _____ by trucks in India transmit transfer transport deliver transmit transfer transport deliver ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following is not true about fuel cells? cost is higher than batteries more efficient no recharging is needed need more than two electrode cost is higher than batteries more efficient no recharging is needed need more than two electrode ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In rotating electrical machines, the insulation temperature limit for class B type is 180˚C 130˚C 150˚C 105˚C 180˚C 130˚C 150˚C 105˚C ANSWER EXPLANATION DOWNLOAD EXAMIANS APP insulation Class and temperature limit(in ˚C) is given below:Y - 90A- 105E- 120B-130F-155H-180C- above 180
GETCO Exam Paper (22-07-2015) Differential equation is required to be solved in _____ Load flow studies Stability studies Finding efficiency of a transmission line economical operation of power systems Load flow studies Stability studies Finding efficiency of a transmission line economical operation of power systems ANSWER DOWNLOAD EXAMIANS APP
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