Electrical Machines In a single phase induction motor, the starting torque developed is proportional to 1/V supply voltage V V² 1/V² 1/V supply voltage V V² 1/V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following, voltage regulation may be zero or negative unity power factor leading power factor All of these lagging power factor unity power factor leading power factor All of these lagging power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following methods are suitable for the speed control of squirrel cage induction motor? 1. Voltage control. 2. Frequency control. 3. Pole changing method. 4. Rotor resistance control select the correct answer using the codes given below:- 2, 3 and 4. 1, 2 and 3. 1, 3 and 4. 2 and 4. 2, 3 and 4. 1, 2 and 3. 1, 3 and 4. 2 and 4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the DC Motor use flywheel? Cumulatively compound motor. Shunt motor. Differently compared motor. Series motor. Cumulatively compound motor. Shunt motor. Differently compared motor. Series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? armature flux armature current armature mmf All of these armature flux armature current armature mmf All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A transformer core is made up of a silicon steel laminations which has maximum flux density 1 Tesla. If it was cold rolled grain oriented its flux density increases to 1.6 Tesla. What is the saving in core size or area due to cold rolled grain oriented process? 38% 68% 60% 40% 38% 68% 60% 40% ANSWER DOWNLOAD EXAMIANS APP
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