Electrical Machines Which motor cannot be started on no load? series motors both B and C shunt motors cumulative compound motors series motors both B and C shunt motors cumulative compound motors ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Width of a carbon brush should be equal to the width of the 1 to 2 commutator segment. the width of the 2 to 3 commutator segment. less than the width of commutator segment. the width more than 3 commutator segment. the width of the 1 to 2 commutator segment. the width of the 2 to 3 commutator segment. less than the width of commutator segment. the width more than 3 commutator segment. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Number of tappings for each equalizer ring is equal to number of parallel paths. number of poles. number of commutator segments. number of pole pairs. number of parallel paths. number of poles. number of commutator segments. number of pole pairs. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The field system of an alternator is usually excited 110 / 220 V AC. 230 V AC. 250 / 250 V DC. 3 - Φ, 50 Hz and 400 V. 110 / 220 V AC. 230 V AC. 250 / 250 V DC. 3 - Φ, 50 Hz and 400 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines As compared to an induction motor, the air gap in a DC motor is between 50% and 90%. same. less than 50%. more. between 50% and 90%. same. less than 50%. more. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum efficiency will occur, when copper loss is_______to iron loss? greater than less than any of the above equal to greater than less than any of the above equal to ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS