GETCO Exam Paper (22-07-2015) The power factor of the arc in circuit breaker is always zero always leading always unity always lagging always zero always leading always unity always lagging ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The RMS value of the voltage u(t) = 3 + 4 cos(3t) is 5 4.12 3 + 2(1.41) 7 5 4.12 3 + 2(1.41) 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) Earth wire on EHV overhead transmission line is provided to protect the line against switching surge lightning surge excessive fault voltages corona effect switching surge lightning surge excessive fault voltages corona effect ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following is a reason to decouple AVR and LFC loops when there is a shortage of reactive power? Change in voltage magnitude marginally affects real power angle of the voltage is not considered deference of error is the main reason AVR loop response is slower than LFC loop Change in voltage magnitude marginally affects real power angle of the voltage is not considered deference of error is the main reason AVR loop response is slower than LFC loop ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Shunt compensation in EHV line is resorted to Improve voltage profile Improve the stability Increase line impedance Reduce the fault level Improve voltage profile Improve the stability Increase line impedance Reduce the fault level ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In case of a balanced three phase sinusoidal AC supply, because of the phase difference rotating magnetic field is produced neutral wire is not required, if load is balanced neutral current is high if load is not balanced all are correct rotating magnetic field is produced neutral wire is not required, if load is balanced neutral current is high if load is not balanced all are correct ANSWER DOWNLOAD EXAMIANS APP
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