Electrical Machines In a lap winding dc machine number of conductors are 100 and number of parallel paths are 10. Find the average pitch 100 50 10 1 100 50 10 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc generator operating on load with its brushes on the geometrical neutral axis (GNA), the magnetic neutral axis (MNA) is shifted in the direction of rotation. Now, if the brushes are given a lead of 90° (electrical), then the MNA will coincide with the GNA shift forward by less than 90° shift forward by 90° shift forward by more than 90° coincide with the GNA shift forward by less than 90° shift forward by 90° shift forward by more than 90° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is reduced, the power factor is unity power factor None of these lagging power factor leading power factor unity power factor None of these lagging power factor leading power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC Motor uses 4-point starter? DC shunt motor with armature resistance. DC compound motor. DC series motor. DC shunt motor with field weaking control. DC shunt motor with armature resistance. DC compound motor. DC series motor. DC shunt motor with field weaking control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cross magnetization effects which of the following? reduction in main field flux reduces the terminal voltage both 2 and 3 commutation reduction in main field flux reduces the terminal voltage both 2 and 3 commutation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A series motor is efficiently suitable for constant speed operation. high starting torque operation. low starting torque operation. none of these. constant speed operation. high starting torque operation. low starting torque operation. none of these. ANSWER DOWNLOAD EXAMIANS APP
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