A) by using damper bars B) by using a flywheel C) by designing the motor for adequate synchronizing power D) by any of the above methods. Ans : (D)
A) 3000 rpm B) 1500 rpm C) 750 rpm D) 375 rpm. Ans : (B)
A) Armature terminals B) One of the phase windings of stator C) All phase windings of stator D) All phase windings of stator and armature. Ans : (A)
A) load B) supply frequency C) supply voltage D) excitation. Ans : (B)
A) dc motor B) induction motor C) synchronous motor D) all of the above motor. Ans : (C)
A) stator is not used B) the direction of instantaneous torque on the rotor reverses after half cycle C) starting winding is not provided D) there is no slip. Ans : (B)
A) zero B) 3% C) 5% D) 10%. Ans : (A)
A) A series motor B) An alternator C) A rotor converter D) An induction motor. Ans : (B)
A) dc compound motor B) single phase reluctance motor C) dc shunt generator D) slip ring induction motor. Ans : (C)
A) greater, greater B) lower, lower C) greater, lower D) lower, greater. Ans : (A)