Electrical Machines A 5 KVA transformer has a turns ratio of N1/N2 = 10. The impedance of primary winding is 3+j5 ohms while that of secondary winding is 0.5+j0.8 ohms. The impedance of transformer when referred to primary will be 3.05+j5.08 ohms 3.5+j5.8 ohms 8+j13 ohms 53+j85 ohms 3.05+j5.08 ohms 3.5+j5.8 ohms 8+j13 ohms 53+j85 ohms ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The induction motor shaft is made of cast iron. mild steel. aluminium. stainless steel. cast iron. mild steel. aluminium. stainless steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increases in field excitation of a DC generator, its generated emf decreases. increases. increases upto a limit and then remains almost constant. remains constant. decreases. increases. increases upto a limit and then remains almost constant. remains constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V DC machine has an armature resistance 1 Ω. If the full load current is 20 A, the difference of induced voltage between generator and motor is 0 V. 20 V. 60 V. 40 V. 0 V. 20 V. 60 V. 40 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotating magnetic field is produced in an induction motor because of either stator winding or rotor winding. None of these rotor winding. stator winding. either stator winding or rotor winding. None of these rotor winding. stator winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ratio of starting torque to full load torque is minimum in Shunt motor. Cumulative compound motor. Differential compound motor. Series motor. Shunt motor. Cumulative compound motor. Differential compound motor. Series motor. ANSWER DOWNLOAD EXAMIANS APP
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