Question 45 (Textile Technology & Fibre Science)
In winding zone of ring spinning, the permissible minimum angle of lead is 30o. For a ring of 40 mm diameter, the minimum diameter (in mm) of bobbin required is __20__.
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Given–
Minimum angle of lead()=30o
Diameter of ring frame(Dr)=40mm
Minimum diameter of bobbin(Db)=?
Formula:
(Answer)