Electrical Machines If the excitation is increased, the power factor is leading power factor unity power factor None of these lagging power factor leading power factor unity power factor None of these lagging power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dissolve gas analysis of transformer oil is carried out to determine condition of bushings. condition of transformer oil. condition of transformer. condition of bushing stud. condition of bushings. condition of transformer oil. condition of transformer. condition of bushing stud. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What are the starters used for starting of cage motors? Star-delta starter. All of these. Auto transformer starter. DOL starter. Star-delta starter. All of these. Auto transformer starter. DOL starter. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulation method is accurate ? ZPF method MMf method American standard association method Synchronous impedance method ZPF method MMf method American standard association method Synchronous impedance method ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starting current of a 3 - Φ induction motor is 5 times the rated current, while rated slip is 4 %, then ratio of starting torque to full load torque is 0.6. 1. 0.8. 0.4. 0.6. 1. 0.8. 0.4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine the armature mmf is rotating with respect to field poles as well as armature. stationary with respect to field poles. rotating with respect to field poles. stationary with respect to armature. rotating with respect to field poles as well as armature. stationary with respect to field poles. rotating with respect to field poles. stationary with respect to armature. ANSWER DOWNLOAD EXAMIANS APP
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