Electrical Machines For a dc machine shunt resistance and armature resistance values are low and high high and high high and low low and low low and high high and high high and low low and low ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of these types of motor is used in elevators? None of these. DC shunt motor. DC compound motor. DC series motor. None of these. DC shunt motor. DC compound motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the mechanical angle α between the stator and rotor poles increases, then the stator current Decreases. None of above. Increases. Remains unchanged. Decreases. None of above. Increases. Remains unchanged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC compound motor the field regulator is provided to control the armature flux. demagnetize the field partially. limit the armature current. control the field flux. control the armature flux. demagnetize the field partially. limit the armature current. control the field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 4 pole, 50 Hz induction motor 4 % slip, calculate frequency of the rotor emf? 50 Hz. 3 Hz. 10 Hz. 2 Hz. 50 Hz. 3 Hz. 10 Hz. 2 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements are correct ? Both 1 and 2. The leakage reactance of the induction motor should be small. None of these A small value of leakage reactance will increase the maximum power output of motor. Both 1 and 2. The leakage reactance of the induction motor should be small. None of these A small value of leakage reactance will increase the maximum power output of motor. ANSWER DOWNLOAD EXAMIANS APP
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