GETCO Exam Paper (22-07-2015) In a DC motor, back EMF value becomes maximum at _____ full load no load 3/4 load 1/2 load full load no load 3/4 load 1/2 load ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Answer in official key is “1/2 load ”.
GETCO Exam Paper (22-07-2015) During the insulation co-ordination in the sub station, the lowest insulation strength is at transformer bus bar circuit breaker CTs and PTs transformer bus bar circuit breaker CTs and PTs ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Critical clearing time of a fault in a power system is related to Short circuit limit Reactive power limit Transient stability limit Steady state limit Short circuit limit Reactive power limit Transient stability limit Steady state limit ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For a given transformer volte/turn for primary and secondary winding is different depends on transformer design depends on load same different depends on transformer design depends on load same ANSWER EXPLANATION DOWNLOAD EXAMIANS APP emf = 4.44*f*φ*Temf/T = 4.44*f*φ
GETCO Exam Paper (22-07-2015) Which of the following is not true about fuel cells? no recharging is needed cost is higher than batteries more efficient need more than two electrode no recharging is needed cost is higher than batteries more efficient need more than two electrode ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) HVDC transmission is preferred to EHV AC because Its terminal equipment are inexpensive Harmonic problem is avoided System stability can be improved VAR compensation is not required in it Its terminal equipment are inexpensive Harmonic problem is avoided System stability can be improved VAR compensation is not required in it ANSWER DOWNLOAD EXAMIANS APP
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