Electrical Machines Transformer cooling and insulating oil must be of low viscosity. high viscosity. low resistivity. low BDV. low viscosity. high viscosity. low resistivity. low BDV. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single-winding single-phase motor has zero starting torque. low starting torque. starting torque equal to full-load torque. high starting torque. zero starting torque. low starting torque. starting torque equal to full-load torque. high starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The application that need frequent starting and stopping is paper mills. blowers. jaw crushers. lifts and hoists. paper mills. blowers. jaw crushers. lifts and hoists. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A part an alternator winding consist of eight coils in series, each having an emf of 20 V rms induced in it. Coils are placed in successive slots and between each slot and the next, there is an electrical phase displacement of 30°. Find the emf of eight coils in series 86.91 V. 56.91 V. 66.91 V. 76.91 V. 86.91 V. 56.91 V. 66.91 V. 76.91 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator without commutator is a DC motor AC generator DC generator induction motor DC motor AC generator DC generator induction motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the necessary conditions for voltage build up in self excited generator? Field winding resistance should be less than critical resistance. Field winding should be properly connected to armature winding. Poles should contain residual flux. All of these Field winding resistance should be less than critical resistance. Field winding should be properly connected to armature winding. Poles should contain residual flux. All of these ANSWER DOWNLOAD EXAMIANS APP
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