Electrical Machines Swinburne test is conducted under which of the following condition? any of the above full load no load half load any of the above full load no load half load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power of any electrical motor is taken from the Field. Coupling mounted on the shaft. Armature. Motor frame. Field. Coupling mounted on the shaft. Armature. Motor frame. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The frequency of voltage generated by an alternator having 8 poles and rotating at 250 rpm is 60 Hz. 16.67 Hz. 25 Hz. 50 Hz. 60 Hz. 16.67 Hz. 25 Hz. 50 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At what power factor, the voltage regulation of a transformer can be zero ? Lagging power factor. Leading power factor. Unity power factor. Zero power factor. Lagging power factor. Leading power factor. Unity power factor. Zero power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ induction motor draws an current of 50 A from mains when starts by direct switching. If an auto transformer with 60 % tapping is used for starting the current drawn from the mains will be 50. 36. 80. 18. 50. 36. 80. 18. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flashing of DC generator means increasing flux density by providing extra ampere-turns in field. None of these neutralization of residual magnetism. creation of residual magnetism by a DC source. increasing flux density by providing extra ampere-turns in field. None of these neutralization of residual magnetism. creation of residual magnetism by a DC source. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS