GETCO Exam Paper (22-07-2015) The RMS value of the voltage u(t) = 3 + 4 cos(3t) is 7 5 4.12 3 + 2(1.41) 7 5 4.12 3 + 2(1.41) 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 greater lesser depends on load same greater lesser depends on load ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Steady state stability of a power system is improved by using double circuit line instead of single circuit line by fast switching decreasing generator inertia reducing fault clearing time using double circuit line instead of single circuit line by fast switching decreasing generator inertia reducing fault clearing time ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In sub stations for making and breaking of load current circuit breakers are used isolators are used relays are used load interrupter switches are used circuit breakers are used isolators are used relays are used load interrupter switches are used ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Shunt compensation in EHV line is resorted to Reduce the fault level Improve the stability Improve voltage profile Increase line impedance Reduce the fault level Improve the stability Improve voltage profile Increase line impedance ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Speed of induction motor at rated torque is _____ than at maximum torque. lesser same greater depends on load lesser same greater depends on load ANSWER DOWNLOAD EXAMIANS APP
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