Electrical Machines Hopkinson test is conducted under which of the following condition? full load any of the above no load half load full load any of the above no load half load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed, is 200 V 460 V 230 V 115 V 200 V 460 V 230 V 115 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator the actual flux distribution depends upon size of air gap. clearance between tips of the adjacent pole shoes. all of above. shape of the pole shoe. size of air gap. clearance between tips of the adjacent pole shoes. all of above. shape of the pole shoe. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The type of DC motor used for shears and punches is Series motor. Shunt motor. Cummulative compound motor. Differential compound motor. Series motor. Shunt motor. Cummulative compound motor. Differential compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In speed control of DC Series motor, speed lower than the rated speed can be obtained by Connecting an additional resistance in stator circuit. Any of the above. Connecting an additional resistance in the field circuit. Connecting an additional resistance in the armature circuit. Connecting an additional resistance in stator circuit. Any of the above. Connecting an additional resistance in the field circuit. Connecting an additional resistance in the armature circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformer cooling and insulating oil must be of low BDV. high viscosity. low resistivity. low viscosity. low BDV. high viscosity. low resistivity. low viscosity. ANSWER DOWNLOAD EXAMIANS APP
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