Electrical Machines In DC machine torque depends on which of the following? flux (φ) speed both A and B armature current (I) flux (φ) speed both A and B armature current (I) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A large series motor is never started without some mechanical load on it because otherwise it will produce sparking at brushes. draw too much current. open fuse or circuit breaker. develop excessive speed and damage itself. produce sparking at brushes. draw too much current. open fuse or circuit breaker. develop excessive speed and damage itself. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking is very effective for series motors. differential compound motors. shunt motors. separately excited motors. series motors. differential compound motors. shunt motors. separately excited motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ slip ring motor has wound rotor. double cage rotor. any of the above. short-circuited rotor. wound rotor. double cage rotor. any of the above. short-circuited rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a synchronous motor is running at synchronous speed, the damper winding produces both 1 and 2. damping torqe. no torque. eddy current torque. both 1 and 2. damping torqe. no torque. eddy current torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements is/are correct ? Compensating winding will act under the pole. Both A and B. Inter pole winding will act in interpolar region. None of these Compensating winding will act under the pole. Both A and B. Inter pole winding will act in interpolar region. None of these ANSWER DOWNLOAD EXAMIANS APP
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