Electrical Machines A transformer has maximum efficiency at 3/4 load. The ratio of iron loss and full load copper loss is 3/4. 4/3. 16/9. 9/16. 3/4. 4/3. 16/9. 9/16. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements is/are correct statements? EMF per turn in HV winding is more than EMF per turn in LV winding All of these EMF per turn in HV winding is less than EMF per turn in LV winding EMF per turn in both the windings are equal EMF per turn in HV winding is more than EMF per turn in LV winding All of these EMF per turn in HV winding is less than EMF per turn in LV winding EMF per turn in both the windings are equal ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Breather is provided in a transformer to provide cold air in transformer. absorb moisture of air during breathing. filter the transformer oil. absorb moisture from air entering in transformer. provide cold air in transformer. absorb moisture of air during breathing. filter the transformer oil. absorb moisture from air entering in transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The working principle of transformer depends on Amperes law. Newtons law. Faradays law of electromagnetic induction. Coulombs law. Amperes law. Newtons law. Faradays law of electromagnetic induction. Coulombs law. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC series motor is best suited for electric traction as It runs at very high speed at light load. It develops high starting torque. It is cheaper in cost. It consume less power. It runs at very high speed at light load. It develops high starting torque. It is cheaper in cost. It consume less power. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine emf in armature conductors and at the terminals is alternating. current and emf at the terminals are alternating. current and emf in armature are unidirectional current and emf in armature are alternating. emf in armature conductors and at the terminals is alternating. current and emf at the terminals are alternating. current and emf in armature are unidirectional current and emf in armature are alternating. ANSWER DOWNLOAD EXAMIANS APP
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