Electrical Machines Hopkinson test is conducted under which of the following condition? half load full load no load any of the above half load full load no load any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the function of inter pole in DC generator? To get a superior commutation. To serve the economical aspects. To neutralize the distortion of main field flux due to armature reaction. Both option B and C. To get a superior commutation. To serve the economical aspects. To neutralize the distortion of main field flux due to armature reaction. Both option B and C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine will have maximum efficiency? Induction motor. Electrical power transformer. DC motor. Electrical power generator. Induction motor. Electrical power transformer. DC motor. Electrical power generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip exists in in both machines. synchronous motor. none of above. induction motor. in both machines. synchronous motor. none of above. induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A small air gap in poly phase induction motor helps to reduce chance of cogging. reduce magnetizing current. increase starting torque. reduce chance of crawling. reduce chance of cogging. reduce magnetizing current. increase starting torque. reduce chance of crawling. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be 1.24. 0.72. 0.62. 0.25. 1.24. 0.72. 0.62. 0.25. ANSWER DOWNLOAD EXAMIANS APP
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