GETCO Exam Paper (22-07-2015) What is the synonyms of 'Pragmatic'? Uncertain Magnetic Arrogant Practical Uncertain Magnetic Arrogant Practical ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The rating of given on the name plate of a transformer indicates the: Apparent power which it draws from the supply mains True power whichh it draws from the supply mains Apparent power which it can supply True power which it can supply Apparent power which it draws from the supply mains True power whichh it draws from the supply mains Apparent power which it can supply True power which it can supply ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The rating of given on the name plate of a transformer indicates the:Apparent power which it can supply S=V( supplied voltage)*I (load current)active power = v* i*cosφreactive power = v* i*sinφ
GETCO Exam Paper (22-07-2015) The RMS value of the voltage u(t) = 3 + 4 cos(3t) is 3 + 2(1.41) 5 7 4.12 3 + 2(1.41) 5 7 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) Light from the nearest star (other than the sun) reaches the earth in 4.2 years 4.2 hours 42 secs 4.2 minutes 4.2 years 4.2 hours 42 secs 4.2 minutes ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The area under the load duration curve represents average load of the system base load of the system Maximum demand of the power station energy generated in the period considered average load of the system base load of the system Maximum demand of the power station energy generated in the period considered ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is leading unity lagging zero leading unity lagging zero 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
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