Electrical Machines If the field connection of a DC Shunt Motor is changed then motor will not run. it will run in opposite direction. it will run in same direction by slowly. it will run in same direction. motor will not run. it will run in opposite direction. it will run in same direction by slowly. it will run in same direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing divertor resistance of a DC series motor Decrease in speed but armature current remains the same. Increase in speed demanding more armature current. Increase in speed but armature currnet remains the same. Decrease in speed demanding less armature current. Decrease in speed but armature current remains the same. Increase in speed demanding more armature current. Increase in speed but armature currnet remains the same. Decrease in speed demanding less armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In double cage induction motor, the outer cage offers high resistance and high reactance. high resistance and low reactance. low resistance and high reactance. low resistance and low reactance. high resistance and high reactance. high resistance and low reactance. low resistance and high reactance. low resistance and low reactance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An electric motor with constant output power will have a torque speed characteristics in the form of a Straight line through the origin. Straight line parallel to the speed axis. Circle about the origin. Rectangular hyperbola Straight line through the origin. Straight line parallel to the speed axis. Circle about the origin. Rectangular hyperbola ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the armature electric current is increased to double its previous value, and the time of commutation is halved, how will the reactance voltage vary? It will be doubled. It will becomes four times. It will remain the same. It will be halved. It will be doubled. It will becomes four times. It will remain the same. It will be halved. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motor cannot be started on no load? series motors cumulative compound motors both B and C shunt motors series motors cumulative compound motors both B and C shunt motors ANSWER DOWNLOAD EXAMIANS APP
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