Electrical Machines If input of a transformer is square wave the output will be pulsed wave. triangular wave. sine wave. square wave. pulsed wave. triangular wave. sine wave. square wave. 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. 2 and 4. 1, 3 and 4. 1, 2 and 3. 2, 3 and 4. 2 and 4. 1, 3 and 4. 1, 2 and 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine torque depends on which of the following? speed armature current (I) flux (φ) both A and B speed armature current (I) flux (φ) both A and B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft of induction motor should be any of these. hollow. stiff. flexible. any of these. hollow. stiff. flexible. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If field current is decreased in shunt dc motor, the speed of the motor decreases. increases. None of these remains same. decreases. increases. None of these remains same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase induction motor, the starting torque developed is proportional to V² 1/V² supply voltage V 1/V V² 1/V² supply voltage V 1/V ANSWER DOWNLOAD EXAMIANS APP
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