Electrical Machines Which of the following induction motor has the highest starting torque? Same in both induction motors. Slip ring induction motor. None of these Squirrel cage induction motor. Same in both induction motors. Slip ring induction motor. None of these Squirrel cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The breakdown torque of a synchronous motor varies as applied voltage V 1/V² 1/V V² applied voltage V 1/V² 1/V V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In speed control of DC shunt motor by varying field flux, what may be the value of field regulator? 0.2 ohm 2 ohm. 10 ohm 100 ohm 0.2 ohm 2 ohm. 10 ohm 100 ohm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer zero voltage regulation is achieved at a load power factor which is zero leading unity lagging zero leading unity lagging ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under which of the following conditions hunting of synchronous motor is likely to occur ? Small and constant load. Over-loading for long period. Over-excitation. Periodic variation of load. Small and constant load. Over-loading for long period. Over-excitation. Periodic variation of load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has a rotor resistance of 0.002 Ω / phase. If the resistance is increased to 0.004 Ω / phase then the maximum torque will reduced to half increase by 100% remain unaltered increase by 200% reduced to half increase by 100% remain unaltered increase by 200% ANSWER DOWNLOAD EXAMIANS APP
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