Electrical Machines The frequency of voltage generated by an alternator having 8 poles and rotating at 250 rpm is 50 Hz. 25 Hz. 60 Hz. 16.67 Hz. 50 Hz. 25 Hz. 60 Hz. 16.67 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The interpoles in dc machines have a tapering shape in order to reduce the overall weight reduce the saturation in the interpole increase the acceleration of commutation economise on the material required for interpoles and their windings reduce the overall weight reduce the saturation in the interpole increase the acceleration of commutation economise on the material required for interpoles and their windings ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider a separately excited DC motor. If the field current is increased while the armature terminal voltage is held constant, then speed of the motor will increase. remains same. none of these. Decrease.d increase. remains same. none of these. Decrease.d ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eddy current loss will depends on Frequency All of these Flux density Thickness Frequency All of these Flux density Thickness ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Iron loss in a transformer mainly occurs in steel core in transformer. winding of transformer. iron made tank of transformer. transformer insulating oil. steel core in transformer. winding of transformer. iron made tank of transformer. transformer insulating oil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors are used for lathes? Synchronous motor. Either A or B. DC shunt motors. Cage induction motor. Synchronous motor. Either A or B. DC shunt motors. Cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
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