GATE (TF) Textile 2009 Question Paper Solution | GATE/2009/TF/03

Question 03 (Textile Engineering & Fibre Science)

The density of polyester fibre is

(A)More than that of cotton
(B)More than that of nylon but less than that cotton
(C)Same as that of nylon
(D)More than that of polypropylene but less than that nylon
[Show Answer]

Option B is correct

Frequently Asked Questions | FAQs

How do you find the density of fibre?

The density of a fiber can be determined by dividing its mass by its volume. Here are the general steps to find the density of a fiber:
Weigh the fiber: Use a balance to determine the mass of the fiber sample. The mass should be recorded in grams (g).

Measure the fiber’s dimensions: Measure the length, width, and thickness of the fiber. If the fiber is not a regular shape, you can estimate the average diameter.

Calculate the volume: The volume of the fiber can be calculated using the formula for the volume of a cylinder (if the fiber is cylindrical) or using the appropriate formula for the shape of the fiber.

Calculate the density: Divide the mass of the fiber by its volume to obtain the density in grams per cubic centimeter (g/cm³) or in any other appropriate units.

Density = mass / volume

It’s important to note that the density of fibers can vary depending on the type of fiber, its manufacturing process, and other factors. Therefore, it’s essential to follow a standardized method for measuring and calculating the fiber density.

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