Electrical Machines Fufuraldehyde analysis is done to determine the condition of oil in transformer. condition of paper insulation in transformer. condition of cork gaskets used in transformer. condition of lamination on CRGO steel sheet. condition of oil in transformer. condition of paper insulation in transformer. condition of cork gaskets used in transformer. condition of lamination on CRGO steel sheet. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Use of fractional pitch winding results in reduced leakage reactance. make it stiffer. All of these results in reduced axial length of the machine. results in reduced leakage reactance. make it stiffer. All of these results in reduced axial length of the machine. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The brush-axis of a bipolar dc motor is rotated by 90°. The effect of this rotation on the back emf Eband the torque developed Tdwould be such that Eb is zero, but Td is unchanged Eb is unchanged, but Td is zero both Eb and Td are unchanged both Eb and Td are zero Eb is zero, but Td is unchanged Eb is unchanged, but Td is zero both Eb and Td are unchanged both Eb and Td are zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC machine having P no of pole pairs Z no of conductors having length L of resistivity ρ and cross section S are arranged. what is the armature resistance for lap-winding ? PZL/ 4Sa PZL/4Sa² PZL/4SP² PZL/4S PZL/ 4Sa PZL/4Sa² PZL/4SP² PZL/4S ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To avoid formation of grooves in the commutator None of these the brushes of same polarity should track each other. the brushes of opposite polarity should track each other. brush position has no effect on the commutator grooving. None of these the brushes of same polarity should track each other. the brushes of opposite polarity should track each other. brush position has no effect on the commutator grooving. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC machine having P no of pole pairs, Z no of conductors having length L of resistivity ρ and cross section S are arranged. what is the armature resistance for simple wave-winding ? PZL/4S PZL/4Sa² PZL/4Sp² PZL/ 4Sa PZL/4S PZL/4Sa² PZL/4Sp² PZL/ 4Sa ANSWER DOWNLOAD EXAMIANS APP
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