GATE (TF) Textile 2005 Question Paper Solution | GATE/2005/TF/45

Question 45 (Textile Engineering & Fibre Science)

The permissible minimum angle of lead is 30o. For a ring of 40mm diameter, the minimum bobbin diameter is

(A)15 mm
(B)18 mm
(C)20 mm
(D)21 mm
[Show Answer]

Option C is correct.


Angle of lead(\theta)=30^o

Dia of ring(d_r)=40mm

Bobbin dia(d_b)=?

By formula-




d_b=0.5 \times 40

d_b=20 mm (Ans)

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