Electrical Machines Pole changing methods are suitable only for ___________ type induction motor. cage. none of these. linear. wound. cage. none of these. linear. wound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine the armature mmf is rotating with respect to field poles. stationary with respect to field poles. rotating with respect to field poles as well as armature. stationary with respect to armature. rotating with respect to field poles. stationary with respect to field poles. rotating with respect to field poles as well as armature. stationary with respect to armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is not suitable for frequent starting and stopping? Capacitor run motor Capacitor split phase motor Resistance split phase motor All of these Capacitor run motor Capacitor split phase motor Resistance split phase motor All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Normally for the design of transformer the ambient temperature is taken as 27°C. 32°C. 35°C. 45°C. 27°C. 32°C. 35°C. 45°C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor of a three phase induction motor has an impedance of 0.4 + j4 ohm per phase at standstill the maximum torque occurs at a slip of _____________. 25 %. 15 %. 50 %. 10 %. 25 %. 15 %. 50 %. 10 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor torque or load angle δ ------------- with increase in load None of these increases decreases remains unaffected None of these increases decreases remains unaffected ANSWER DOWNLOAD EXAMIANS APP
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