Electrical Machines Hunting phenomenon is observed in which motor? Induction motor. Synchronous motor. Both A and C. DC motor. Induction motor. Synchronous motor. Both A and C. DC motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip rings of an induction motors are made of phosphor bronze. aluminium. carbon. stainless steel. phosphor bronze. aluminium. carbon. stainless steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tertiary winding in a transformer is mostly zig - zag delta connected. delta connected. star connected. zig - zag star connected. zig - zag delta connected. delta connected. star connected. zig - zag star connected. 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, 4 2, 3 , 5 2, 4 ,5 1, 3, 5 1, 4 2, 3 , 5 2, 4 ,5 1, 3, 5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements : 1. interpole windings are connected in series with armature windings 2. polarity of interpoles must be the same as that of the main poles in advance 3. distortion of the main field under the pole shoes is not affected by the use of interpoles From above, the correct answer is 1 and 3 1 and 2 2 and 3 1 alone 1 and 3 1 and 2 2 and 3 1 alone ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine shape of main field flux distribution is? saddle shape flat tapped or trapezoidal triangular peaky in nature saddle shape flat tapped or trapezoidal triangular peaky in nature ANSWER DOWNLOAD EXAMIANS APP
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