GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 7\8 6\7 2\3 5\6 7\8 6\7 2\3 5\6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP fractional pitch = Cos( α/2)α is obtain from: (nα/2)=90˚ where n is harmonicα=25.7143˚fractional pitch=6/7
GETCO Exam Paper (22-07-2015) Light from the nearest star (other than the sun) reaches the earth in 42 secs 4.2 minutes 4.2 years 4.2 hours 42 secs 4.2 minutes 4.2 years 4.2 hours ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In comparison to steam plant, the annual fixed cost of nuclear plant is Quit high Quit low almost equal Can't say Quit high Quit low almost equal Can't say ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Normally the angle of the transmission line is kept _____ because of _____ reasons 90, steady state stability 45, transient stability 45, steady state stability 90, transient stability 90, steady state stability 45, transient stability 45, steady state stability 90, transient stability ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Stray loss is equal to _____ copper loss and iron loss frictional loss & copper loss mechanical loss & iron loss field copper loss & iron loss copper loss and iron loss frictional loss & copper loss mechanical loss & iron loss field copper loss & 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 Its terminal equipment are inexpensive VAR compensation is not required in it Harmonic problem is avoided System stability can be improved Its terminal equipment are inexpensive VAR compensation is not required in it Harmonic problem is avoided System stability can be improved ANSWER DOWNLOAD EXAMIANS APP
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