Electrical Machines The heat generated in the transformer is dissipated mainly by radiation. convection. All of these conduction. radiation. convection. All of these conduction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the highest possible speed of turbo alternators? 4000 rpm 3000 rpm 1500 rpm 1000 rpm 4000 rpm 3000 rpm 1500 rpm 1000 rpm 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)1.6 × full Load. (Pi / Pc)0.5 × Full Load. (Pi / Pc)2 × full Load. (Pi / Pc) × full Load. (Pi / Pc)1.6 × full Load. (Pi / Pc)0.5 × Full Load. (Pi / Pc)2 × full Load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformer core is laminated to reduce hysteresis loss. eddy current loss. copper loss. both 1 and 2. hysteresis loss. eddy current loss. copper loss. both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has low ratings only? Resistance split phase Shaded pole Capacitor start Capacitor run Resistance split phase Shaded pole Capacitor start Capacitor run ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In the V curve shown in figure below for a synchronous motor, the parameter of Y and X coordinates are, respectively Power factor and field current. Armature current and torque. Torque and field current. Armature current and field current. Power factor and field current. Armature current and torque. Torque and field current. Armature current and field current. ANSWER DOWNLOAD EXAMIANS APP
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