Which attribute of fiber analysis is typically examined under microscopy?

Which attribute of fiber analysis is typically examined under microscopy?

• A. The smoke produced by burning the fiber.
• B. The chemical composition by FTIR only.
• C. Fiber type, color, diameter, cross-section, and weave.
• D. The tensile strength measurement.

Answer: (C)

Under microscopy, the focus is on the fiber’s physical appearance and structure. This means observing the fiber type, noting its color, measuring the diameter, examining the cross-sectional shape, and looking at the weave or fabric construction. These morphological features are visible with light or polarized microscopy and provide distinctive, observable characteristics that help differentiate fibers from different sources. Chemical composition, which would require techniques like FTIR, isn’t determined by microscopy alone. Similarly, the smoke produced by burning is related to combustion analysis, and tensile strength is a mechanical test, not a microscopic observation. So the attributes that microscopy typically examines—fiber type, color, diameter, cross-section, and weave—best fit the question.

Under microscopy, the focus is on the fiber’s physical appearance and structure. This means observing the fiber type, noting its color, measuring the diameter, examining the cross-sectional shape, and looking at the weave or fabric construction. These morphological features are visible with light or polarized microscopy and provide distinctive, observable characteristics that help differentiate fibers from different sources. Chemical composition, which would require techniques like FTIR, isn’t determined by microscopy alone. Similarly, the smoke produced by burning is related to combustion analysis, and tensile strength is a mechanical test, not a microscopic observation. So the attributes that microscopy typically examines—fiber type, color, diameter, cross-section, and weave—best fit the question.