GETCO Exam Paper (22-07-2015) The RMS value of the voltage u(t) = 3 + 4 cos(3t) is 3 + 2(1.41) 7 5 4.12 3 + 2(1.41) 7 5 4.12 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) For a given transformer volte/turn for primary and secondary winding is depends on transformer design same depends on load different depends on transformer design same depends on load different ANSWER EXPLANATION DOWNLOAD EXAMIANS APP emf = 4.44*f*φ*Temf/T = 4.44*f*φ
GETCO Exam Paper (22-07-2015) In load flow analysis, the load at the bus is represented as none of these a constant current drawn from the bus a voltag dependent impedance at the bus a constant impedance connected at the bus none of these a constant current drawn from the bus a voltag dependent impedance at the bus a constant impedance connected at the bus ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Fast excitation system of the generator will _____ Improve the reactive power control Improve the voltage control Improve the power factor Improve the dynamic stability Improve the reactive power control Improve the voltage control Improve the power factor Improve the dynamic stability ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Stray loss is equal to _____ mechanical loss & iron loss frictional loss & copper loss field copper loss & iron loss copper loss and iron loss mechanical loss & iron loss frictional loss & copper loss field copper loss & iron loss copper loss and 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) HVDC transmission is preferred to EHV AC because Harmonic problem is avoided VAR compensation is not required in it System stability can be improved Its terminal equipment are inexpensive Harmonic problem is avoided VAR compensation is not required in it System stability can be improved Its terminal equipment are inexpensive ANSWER DOWNLOAD EXAMIANS APP
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