GETCO Exam Paper (22-07-2015) In a DC motor, back EMF value becomes maximum at _____ no load full load 3/4 load 1/2 load no load full 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) Stray loss is equal to _____ 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 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) Switching surges are high votage DCs short duration transient voltage power frequency voltage high voltage Acs high votage DCs short duration transient voltage power frequency voltage high voltage Acs ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Slip at maximum torque depends on stator reactance rotor resistance and reactance stator resistance load current stator reactance rotor resistance and reactance stator resistance load current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP at maximum torque:S=R₂/X₂
GETCO Exam Paper (22-07-2015) Power Factor correcting element is generally connected in _____ parallel to source series with source parallel to the load series with load parallel to source series with source parallel to the load series with load ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) 100% string efficiency means Equal potential across each disc None uniform potential distribution across each disc One of the insulator discs shorted Zero potential across each disc Equal potential across each disc None uniform potential distribution across each disc One of the insulator discs shorted Zero potential across each disc ANSWER DOWNLOAD EXAMIANS APP
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