Electrical Machines When a transformer is loaded, the secondary terminal voltage drops. That means power factor is unity. zero. lagging. leading. unity. zero. lagging. leading. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Iron losses in a DC machine are independent of variation in speed and voltage. speed. load. voltage. speed and voltage. speed. load. voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC shunt generator builds up 230 V when driven in clockwise direction. In case it is driven in anti clockwise direction, other things remaining unchanged, then the voltage build up is some what less than 230 V 230 V not possible some what more than 230 V some what less than 230 V 230 V not possible some what more than 230 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators brushes are used for reduce eddy current loss collecting of current without any sparkings convert ac armature current in to dc collecting of voltage reduce eddy current loss collecting of current without any sparkings convert ac armature current in to dc collecting of voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following transformer insulating oil generally used in India? Naphtha based insulating oil. Aromatics based insulating oil. Olefin based insulating oil. Paraffin based insulating oil. Naphtha based insulating oil. Aromatics based insulating oil. Olefin based insulating oil. Paraffin based insulating oil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Counter emf of a DC motor exceeds supply voltage helps in energy conversion. regulates its armature voltage. aids applied voltage. exceeds supply voltage helps in energy conversion. regulates its armature voltage. aids applied voltage. ANSWER DOWNLOAD EXAMIANS APP
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