Electrical Machines In an induction motor, the no-load slip is generally equal to 4 %. 1.5 %. zero. less than 1 %. 4 %. 1.5 %. zero. less than 1 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a DC compound motor can be reversed by interchanging shunt field connections. armature or field connections. series field connections. armature connections. shunt field connections. armature or field connections. series field connections. armature connections. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC generator will not build up voltage if it has lost residual magnetism. if field resistance is more than critical resistance. due to wrong direction of rotation. any one of above. if it has lost residual magnetism. if field resistance is more than critical resistance. due to wrong direction of rotation. any one of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotor resistance speed control is used in squirrel cage induction motor. synchronous motor. slip ring induction motor. dc shunt motor. squirrel cage induction motor. synchronous motor. slip ring induction motor. dc shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An IM cannot run at synchronous speed because air friction will prevent it. induction motor will become synchronous motor. none of above. rotor torque will not be produced. air friction will prevent it. induction motor will become synchronous motor. none of above. rotor torque will not be produced. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine the armature mmf is stationary with respect to field poles. rotating with respect to field poles. stationary with respect to armature. rotating with respect to field poles as well as armature. stationary with respect to field poles. rotating with respect to field poles. stationary with respect to armature. rotating with respect to field poles as well as armature. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS