Electrical Machines The direction of rotation of a 3 - Φ induction motor can be reversed by transposing any two leads from slip rings. disconnecting any one phase. transposing all the three leads from the supply. transposing any two leads from supply. transposing any two leads from slip rings. disconnecting any one phase. transposing all the three leads from the supply. transposing any two leads from supply. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In applied voltage is reduced in a dc shunt motor Full load current. Full load torque. None of these. Full load speed. Full load current. Full load torque. None of these. Full load speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has synchronous speed of 1500 rpm. What will be the slip when it is running at a speed of 1450 rpm? -3% +3% +3.33% -3.33% -3% +3% +3.33% -3.33% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Iron loss in a transformer mainly occurs in transformer insulating oil. winding of transformer. steel core in transformer. iron made tank of transformer. transformer insulating oil. winding of transformer. steel core in transformer. iron made tank of transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A simple method of increasing the voltage of a DC generator is to increase the source frequency. increase the number of turns in field coil. increase the speed of shaft rotation. increase the number of turns in armature coil. increase the source frequency. increase the number of turns in field coil. increase the speed of shaft rotation. increase the number of turns in armature coil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature resistance of the dc motor is generally of the range 0.1 ohm. 100 ohm. 50 ohm. 0.5 ohm. 0.1 ohm. 100 ohm. 50 ohm. 0.5 ohm. ANSWER DOWNLOAD EXAMIANS APP
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