Electrical Machines The slip of an induction motor normally does not depend on which of the following? Shaft torque. Synchronous speed. Rotor speed. Core loss component. Shaft torque. Synchronous speed. Rotor speed. Core loss component. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by a 220 V DC series motor of armature resistance 0.5 Ω and back emf of 200 V is 400 A. 440 A. 44 A. 40 A. 400 A. 440 A. 44 A. 40 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Satisfactory commutation of DC machine requires smooth, concentric commutator properly undercut. brushes should smoothly run in the holders. All of these brushes should be of proper grade and size. smooth, concentric commutator properly undercut. brushes should smoothly run in the holders. All of these brushes should be of proper grade and size. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tap changer is generally provided in power transformer. current transformer. voltage transformer. earthing transformer. power transformer. current transformer. voltage transformer. earthing transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The noise resulting from vibrations of lamination set by magnetic forces, is termed as magnetostriction. zoom. boo. hum. magnetostriction. zoom. boo. hum. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC motor are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor ? 16.67%. 14.28%. 15.30%. 18.25%. 16.67%. 14.28%. 15.30%. 18.25%. ANSWER DOWNLOAD EXAMIANS APP
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