Electrical Machines Open circuit test on transformer gives both 1and 2 copper loss hysteresis loss eddy current loss both 1and 2 copper loss hysteresis loss eddy current loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in a conductor rotating in a bipolar field is both of above. DC. None of these AC. both of above. DC. None of these AC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Width of a carbon brush should be equal to less than the width of commutator segment. the width of the 1 to 2 commutator segment. the width more than 3 commutator segment. the width of the 2 to 3 commutator segment. less than the width of commutator segment. the width of the 1 to 2 commutator segment. the width more than 3 commutator segment. the width of the 2 to 3 commutator segment. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer which of the following losses are zero? Iron loss All of these Rotational loss Copper loss Iron loss All of these Rotational loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines which of the following losses are negligible in blocked rotor test? both A and B copper loss mechanical loss iron loss both A and B copper loss mechanical loss iron loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable tan - delta (tanδ) of dielectric dispassion factor of power transformer insulating oil is generally taken as 0.5 at 90°C. 1 at 90°C. 3 at 90°C. 2 at 90°C. 0.5 at 90°C. 1 at 90°C. 3 at 90°C. 2 at 90°C. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS