Electrical Machines In a dc machine 6 pole wave winding is used. The number of parallel paths are? 2 6 4 1 2 6 4 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the load current and the flux of a DC motor are held constant and voltage applied across its armature is increased by 5%, the speed of the motor will increase by 5 %. depend on other factors. remain unchanged. reduce by 5 %. increase by 5 %. depend on other factors. remain unchanged. reduce by 5 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors provided with open slots have leading power factor. higher efficiency. less breakdown torque. more breakdown torque. leading power factor. higher efficiency. less breakdown torque. more breakdown torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward Leonard control provides speed control in both direction. in one direction only. above rated speed. below rated speed. in both direction. in one direction only. above rated speed. below rated speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Interpoles in a DC motor must be Series excited and should have the same polarity as that of the behind main pole in the direction of rotation of armature. Series excited and should have the same polarity as that of the ahead main pole in the direction of rotation of armature. Shunt excited and should have the same polarity as that of the ahead main pole in the direction of rotation of armature. Shunt excited and should have the same polarity as that of the behind main pole in the direction of rotation of armature. Series excited and should have the same polarity as that of the behind main pole in the direction of rotation of armature. Series excited and should have the same polarity as that of the ahead main pole in the direction of rotation of armature. Shunt excited and should have the same polarity as that of the ahead main pole in the direction of rotation of armature. Shunt excited and should have the same polarity as that of the behind main pole in the direction of rotation of armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has negative speed regulation? Series motor Shunt motor Cumulative compound motors Differential compound motor Series motor Shunt motor Cumulative compound motors Differential compound motor ANSWER DOWNLOAD EXAMIANS APP