19) If the slot angle is 30 Degree electrical degrees, the main winding (running winding) is started in slot no. 1 then the starting winding should start in :\n(Hint : starting winding is started at a phase difference of 90 electrical degrees with the running

20) In metric system, the size of super enamelled copper wire is given in :

21) The number of poles of a capacitor type fan motor is 8 and the number of coils is 16 (equal number for starting and running windings). This type of winding is :

22) If the number of poles is 4 and the number of slots is 24 then the pole-pitch will be :

23) Data pertaining to 'end-connection', 'group-connection' and 'lead-connection' should be taken :