Electrical Machines which of the following losses are negligible in blocked rotor test? mechanical loss copper loss both A and B iron loss mechanical loss copper loss both A and B iron loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC motor with armature resistance of 0.5 ohms is connected directly to a 230 Volt supply. If the armature is stationary then the current flowing through armature is 250 A. 570 A. 340 A. 460 A. 250 A. 570 A. 340 A. 460 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine, the armature windings are placed on the rotor because of necessity for development of torque. generation of voltage. commutation. electromechanical energy conversion. development of torque. generation of voltage. commutation. electromechanical energy conversion. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the load current and flux of a DC motor are held constant and voltage applied across it armature is increased by 5%, the speed of the motor will Increase by 5%. Reduce by 5%. Depends on other factor. Remain unchanged. Increase by 5%. Reduce by 5%. Depends on other factor. Remain unchanged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotor resistance speed control is used in dc shunt motor. slip ring induction motor. squirrel cage induction motor. synchronous motor. dc shunt motor. slip ring induction motor. squirrel cage induction motor. synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the DC Motor use flywheel? Cumulatively compound motor. Shunt motor. Series motor. Differently compared motor. Cumulatively compound motor. Shunt motor. Series motor. Differently compared motor. ANSWER DOWNLOAD EXAMIANS APP
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