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 Which of the following motor is expensive for same Kw output rates? Synchronous motor. DC Shunt Motor Induction motor. AC single phase motor. Synchronous motor. DC Shunt Motor Induction motor. AC single phase motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In normal dc machines operating at full-load conditions, the most powerful electromagnet is interpole winding armature winding field winding interpole and compensating windings together interpole winding armature winding field winding interpole and compensating windings together ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor during DC rheostatic braking is 2 - s. 1 - s. s. 2 + s. 2 - s. 1 - s. s. 2 + s. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 1 KVA, 230 V, 50 Hz, single phase transformer has an eddy current loss of 30 watts. The eddy current loss when the transformer is excited by a dc source of same voltage will be more than 30 W less than 30 W 30 W zero watt more than 30 W less than 30 W 30 W zero watt ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The fall in speed of the DC generator due to increase in load can be corrected by reducing the load voltage. increasing the input to the prime mover. increasing the excitation. cooling the armature. reducing the load voltage. increasing the input to the prime mover. increasing the excitation. cooling the armature. ANSWER DOWNLOAD EXAMIANS APP
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