Electrical Machines To eliminate 5th harmonic in the induced voltage phase breadth should be 30° 18° 72° 36° 30° 18° 72° 36° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A triangular mmf wave is produced in the air gap of an electric machine. Such wave is produced by rotor of a dc machine. stator of a dc machine. rotor of an synchronous machine. stator of a induction machine. rotor of a dc machine. stator of a dc machine. rotor of an synchronous machine. stator of a induction machine. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slot edges in a DC machine are made of Cast iron. Mild steel. Fibre. Silicon steel. Cast iron. Mild steel. Fibre. Silicon steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC motors has almost constant speed over their full load range? none of these. Series. Shunt. Compound (cummolative). none of these. Series. Shunt. Compound (cummolative). ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements regarding dc machines : 1. possible resistance of shunt-field winding is 1 Ω 2. possible resistance of series-field winding is 1 Ω 3. electrographite brushes are used for 230 V, 10 A machines 4. Copper-graphite brushes are used for 230 V, 10 A machines 5. Possible armature-circuit resistance is 1 Ω From these, the correct statements are 1, 3, 5 2, 4 ,5 1, 4 2, 3 , 5 1, 3, 5 2, 4 ,5 1, 4 2, 3 , 5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Scott connections are used for three phase to single phase transformation. three phase to two phase transformation. single phase to three phase transformation. any of the above. three phase to single phase transformation. three phase to two phase transformation. single phase to three phase transformation. any of the above. ANSWER DOWNLOAD EXAMIANS APP
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