The wool fiber exhibits high elastic recovery among the natural fibers due to its \(\underline{\hspace{2cm}}\)
The outstanding features of polyamide fiber are \(\underline{\hspace{2cm}}\)A. Good dimensional stability. B. High wet modulus. C. High resistance to alkali. D. Low strength and high elongation.
Match Fibre with Application.\[\begin{array}{|l|l|} \hline \textbf{LIST I} & \textbf{LIST II} \\ \textbf{Fibre} & \textbf{Application} \\ \hline \hline \text{A. Silk fibre} & \text{I. Fire retardant} \\ \hline \text{B. Wool fibre} & \text{II. Directional lustre} \\ \hline \text{C. Nomex fibre} & \text{III. Bulletproof} \\ \hline \text{D. Kevlar fibre} & \text{IV. Thermal insulation} \\ \hline \end{array}\]
The monomer used in the manufacture of Nylon 6 fiber is \(\underline{\hspace{2cm}}\)
On mercerization, moisture regain of cotton fiber \(\underline{\hspace{2cm}}\)
The essential requirements of fiber forming polymers are \(\underline{\hspace{2cm}}\). A. Linear polymer B. Three dimensional polymer C. High molecular weight D. Strong lateral forces
The melting temperature of Nylon 6 fiber is __________.
The primary functions of Spin finish are \(\underline{\hspace{2cm}}\). A. Lubrication of fiber surface B. Drawing of filaments C. Antistatic action D. Cohesion of filaments
The periodic mass variations in yarn are mainly caused by \(\underline{\hspace{2cm}}\)
The cotton fiber exhibits poor crease recovery due to \(\underline{\hspace{2cm}}\)
With all other parameters constant, the fabric with a low cover factor effectively transmits water vapor by a diffusion mechanism in comparison with that of fabric with a high cover factor due to \(\underline{\hspace{2cm}}\)
The strength of fiber is usually measured in bundle form because there is better correlation between fiber bundle strength and \(\underline{\hspace{2cm}}\)
The thermal insulation of clothing mainly depends on fabric \(\underline{\hspace{2cm}}\)
In the twisting zone, if the rear end of the fiber is not in the nip of the delivery rollers of the ringframe, the fiber will be under no control, which causes \(\underline{\hspace{2cm}}\)