Electrical Machines Hopkinson test is conducted under which of the following condition? half load full load no load any of the above half load full load no load any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If iron loss and full load copper loss of any transformer are denoted by Pi and Pc, then the load corresponding to maximum efficiency is given by (Pi / Pc) × full Load. (Pi / Pc)0.5 × Full Load. (Pi / Pc)2 × full Load. (Pi / Pc)1.6 × full Load. (Pi / Pc) × full Load. (Pi / Pc)0.5 × Full Load. (Pi / Pc)2 × full Load. (Pi / Pc)1.6 × full Load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the above problem, find the induced voltage of an alternator of it is to deliver a load of 100 A at power factor of 0.8 lagging with terminal voltage of 200 V. 222 V. 220 V. 225 V. 230 V. 222 V. 220 V. 225 V. 230 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the actual arrangement of series wound generator? Armature and field both are in series with the load. Armature winding is in series with load. Armature and field both are connected. Armature and field both are parallel. Armature and field both are in series with the load. Armature winding is in series with load. Armature and field both are connected. Armature and field both are parallel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Poles of DC machine are often laminated to reduce iron weight. dissipate more heat. reduce armature reaction. reduce pulsation loss. reduce iron weight. dissipate more heat. reduce armature reaction. reduce pulsation loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Methods of synchronizing of alternator may be done by all dark lamp method. all bright lamp method. all of these. one dark two bright. all dark lamp method. all bright lamp method. all of these. one dark two bright. ANSWER DOWNLOAD EXAMIANS APP
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