GETCO Exam Paper (22-07-2015) Two watt meter method for 3 phase circuit is preferred over other methods because all are correct it can be used for balanced or unbalanced load PF of the load can also be estimated it can be used for star or delta connected load all are correct it can be used for balanced or unbalanced load PF of the load can also be estimated it can be used for star or delta connected load ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Two heaters rated at 500 W, 250 V each are conneted in series across a 250 V, 50 Hz mains. The total power drawn from the supply would be _____ watt. 125 1000 250 500 125 1000 250 500 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is zero leading unity lagging zero leading 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) Light from the nearest star (other than the sun) reaches the earth in 4.2 minutes 4.2 hours 4.2 years 42 secs 4.2 minutes 4.2 hours 4.2 years 42 secs ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In case of HVDC transmission there is _____ both charging effect and skin effect no charging current but skin effect charging current but no skin effect no charging current no skin effect both charging effect and skin effect no charging current but skin effect charging current but no skin effect no charging current no skin effect ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In comparison to steam plant, the annual fixed cost of nuclear plant is Can't say Quit low almost equal Quit high Can't say Quit low almost equal Quit high ANSWER DOWNLOAD EXAMIANS APP
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