Electrical Machines The induction motor shaft is made of cast iron. aluminium. stainless steel. mild steel. cast iron. aluminium. stainless steel. mild steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V dc machine has an armature resistance of 1Ω.If the full-load current is 20 A, the differenc in the induced voltages when the machine is running as a motor and as a generator is 20 V zero 50 V 40 V 20 V zero 50 V 40 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the armature of DC motor is directly proportional to The speed of motor. The torque required. The voltage across the terminals. None of above. The speed of motor. The torque required. The voltage across the terminals. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are the methods to reduce the armature reaction and its effects? All of these compensating winding pole stacking pole chamfering All of these compensating winding pole stacking pole chamfering ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Demagnetization effects which of the following? reduces the terminal voltage both B and C reduction in main field flux commutation reduces the terminal voltage both B and C reduction in main field flux commutation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the emf generated by a 4 pole Lap connected DC Motor rotating at 1500 rpm having 1000 conductors and useful flux per pole is 0.4 mWb. 30 volts. 20 volts. 40 volts. 10 volts. 30 volts. 20 volts. 40 volts. 10 volts. ANSWER DOWNLOAD EXAMIANS APP
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