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 44 A. 400 A. 440 A. 40 A. 44 A. 400 A. 440 A. 40 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Exciting current of an induction motor is higher than power transformer. equal as power transformer. lesser than power transformer. none of these. higher than power transformer. equal as power transformer. lesser than power transformer. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following will vary the maximum torque? None of these rotor resistance R rotor reactance X both 1 and 2 None of these rotor resistance R rotor reactance X both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the residual magnetism is of the order of 20 %. 15 %. 10 %. 2.5 %. 20 %. 15 %. 10 %. 2.5 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The function of field regulator in a DC compound motor is to limit the armature current. none of above. control field current. vary the armature resistance. limit the armature current. none of above. control field current. vary the armature resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor normally does not depend on which of the following? Core loss component. Rotor speed. Synchronous speed. Shaft torque. Core loss component. Rotor speed. Synchronous speed. Shaft torque. ANSWER DOWNLOAD EXAMIANS APP
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