Question

Amongst the following, the parameter(s) relevant to fibre fineness measurement using vibration method, is/are:

• A. Length of the fibre specimen
• B. Natural fundamental frequency of vibration of the fibre specimen
• C. Breaking load of the fibre specimen
• D. Tension applied on the fibre specimen

Hint:

For vibration-based fiber fineness measurement, focus on the natural fundamental frequency of vibration to determine the fiber's mass per unit length.

Answer 1

The Correct Option is A, B, D

The vibration method for measuring fiber fineness relies on the vibration characteristics of the fiber specimen.

Step 1: Length of the fibre specimen.
The length of the fiber specimen can affect the overall measurement process, but the primary factor in vibration methods is the frequency of vibration, not the length.

Step 2: Natural fundamental frequency of vibration of the fibre specimen.
This is the key parameter for the vibration method of measuring fiber fineness. The natural frequency of vibration is directly related to the mass and stiffness of the fiber, which is used to calculate its fineness.

Step 3: Breaking load of the fibre specimen.
While important for fiber strength testing, the breaking load does not directly influence the measurement of fiber fineness in the vibration method.

Step 4: Tension applied on the fibre specimen.
Tension applied to the fiber during vibration testing could influence the measurements but is not the primary parameter used for determining fiber fineness.