GETCO Exam Paper (22-07-2015) Who is the vice president of India? (As on 22/07/2015) Dr. Hamid Ansari Nazama heptulla O.P. Kohli Pranav Mukharjee Dr. Hamid Ansari Nazama heptulla O.P. Kohli Pranav Mukharjee ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In case of HVDC transmission there is _____ no charging current no skin effect both charging effect and skin effect charging current but no skin effect no charging current but skin effect no charging current no skin effect both charging effect and skin effect charging current but no skin effect no charging current but skin effect ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The RMS value of the voltage u(t) = 3 + 4 cos(3t) is 4.12 3 + 2(1.41) 5 7 4.12 3 + 2(1.41) 5 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP if voltage is given by,v(t) = V₀ + V₁ cos(3t) + V₂ cos(5t)+ …RMS value is given by,√( V₀² + (V₁/√2)² + (V₂/√2)² + …)
GETCO Exam Paper (22-07-2015) No load efficiency of tranformer is _____ than full load efficiency same lesser depends on load greater same lesser depends on load greater ANSWER DOWNLOAD EXAMIANS APP
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 power plant may take several days to start up and shunt down? solar power plant Base load none of these Peak load solar power plant Base load none of these Peak load ANSWER DOWNLOAD EXAMIANS APP
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