Electrical Machines Fufuraldehyde analysis is done to determine the condition of lamination on CRGO steel sheet. condition of cork gaskets used in transformer. condition of paper insulation in transformer. condition of oil in transformer. condition of lamination on CRGO steel sheet. condition of cork gaskets used in transformer. condition of paper insulation in transformer. condition of oil in transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in dc motor results short circuit. increase in speed. open circuit. decrease in speed. short circuit. increase in speed. open circuit. decrease in speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor when started on no load does not accelerate up to full speed but runs at 1/7th of the rated speed. The motor is said to be locking. plugging. crawling. cogging. locking. plugging. crawling. cogging. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc generator operating on load with its brushes on the geometrical neutral axis (GNA), the magnetic neutral axis (MNA) is shifted in the direction of rotation. Now, if the brushes are given a lead of 90° (electrical), then the MNA will shift forward by 90° shift forward by more than 90° coincide with the GNA shift forward by less than 90° shift forward by 90° shift forward by more than 90° coincide with the GNA shift forward by less than 90° 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 zero watt less than 30 W 30 W more than 30 W zero watt less than 30 W 30 W more than 30 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The primary and secondary windings of a transformer are inductively linked. mechanically linked. electrically linked. conductively linked. inductively linked. mechanically linked. electrically linked. conductively linked. ANSWER DOWNLOAD EXAMIANS APP
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