Electrical Machines When flux density is constant in a transformer, hysteresis loss varies as f V² V f² f V² V f² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous motor will deliver maximum power when input power factor is unity. load angle is 0°. load angle is 45°. load angle is equal to internal angle θ. input power factor is unity. load angle is 0°. load angle is 45°. load angle is equal to internal angle θ. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shunt dc motor the direction of rotation of the motor will reversed. When either field terminals are reversed or armature terminals are reversed. none of above. only armature terminals are reversed. only field terminals are changed. either field terminals are reversed or armature terminals are reversed. none of above. only armature terminals are reversed. only field terminals are changed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, maximum power occurs at a load angle of 90° Greater than 90° less than 90° 0° 90° Greater than 90° less than 90° 0° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principal of starting of 3 - Φ IM is similar to transformer with short-circuited secondary. capacitor run IM. repulsion motor type starting. synchronous motor. transformer with short-circuited secondary. capacitor run IM. repulsion motor type starting. synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ slip ring motor has any of the above. wound rotor. short-circuited rotor. double cage rotor. any of the above. wound rotor. short-circuited rotor. double cage rotor. ANSWER DOWNLOAD EXAMIANS APP
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