Electrical Machines A synchronous motor will deliver maximum power when load angle is equal to internal angle θ. load angle is 45°. load angle is 0°. input power factor is unity. load angle is equal to internal angle θ. load angle is 45°. load angle is 0°. input power factor is unity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of induction motors the ratio of length to pole pitch for minimum cost, is taken as 1.5 to 2. 3 to 5. 1.0. 2 to 3. 1.5 to 2. 3 to 5. 1.0. 2 to 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking can be used for All of these compound motors. shunt motors. series motors. All of these compound motors. shunt motors. series motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the function of inter pole in DC generator? To serve the economical aspects. To neutralize the distortion of main field flux due to armature reaction. To get a superior commutation. Both option B and C. To serve the economical aspects. To neutralize the distortion of main field flux due to armature reaction. To get a superior commutation. Both option B and C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator has full-load voltage regulation of 10% at rated speed of 1000 rpm. If it is now driven at 1250 rpm, then its voltage regulation at full load would be 12.5% be less than 10% remain unchanged be more than 10% be 12.5% be less than 10% remain unchanged be more than 10% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 1-phase induction motor, if the forward torque slip is S, what is the backward torque slip? 1-S 2-S S 1/S 1-S 2-S S 1/S ANSWER DOWNLOAD EXAMIANS APP
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