GATE (TF) Textile 2003 Question Paper Solution | GATE/2003/TF/39

In the context of melt spinning, consider W as the mass output rate of the melt; n the number of filaments; d the diameter of spinneret hole; d_o the diameter of the filament at extrusion point; d_L the diameter of the filament at take up; $\rho _o$ the density of melt; $\rho _L$ the density of filament; V_o the average extrusion velocity; and V_L the take up velocity

Question 39 (Textile Engineering & Fibre Science)

The expression of V_o will be

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Option A

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(A)	$4W \div (n \rho _o \pi d^2)$
(B)	$W \div (n^2 \rho _o \pi d^2)$
(C)	$4W^2 \div (n^2 \rho _o \pi d^2)$
(D)	$4W \div (n \rho _L \pi d^2)$