Recent questions tagged gatexe-2023

\begin{tabular}{|l|l|}Q. 111 & \begin{tabular}{l}A copper wire upon loading instantaneously increases in length to $l$, and then \\continues to elongate gradually. Upon u...

\begin{tabular}{|l|l|}Q. 112 & Consider the structure of a crosslinked polymer shown in the figure. From the \\options given, identify the monomers that are used in the s...

\begin{tabular}{l|l}Q. 113 & \begin{tabular}{l}Among the options given, choose the most suitable compatibilizer for blending \\Polyvinylidene fluoride (PVDF) and Acryloni...

\begin{tabular}{|c|c|c|c|c|}\hline \multirow[t]{3}{*}{ Q. 114} & \multicolumn{4}{|c|}{\begin{tabular}{l}A high molecular weight polymer passes through different zones fro...

\begin{tabular}{|l|l|}Q.115 & \begin{tabular}{l}Polymer wetting is improved by the addition of fillers with functional groups. In a \\typical case-study, natural-clay was...

\begin{tabular}{|c|c|c|c|c|}\hline \multirow[t]{6}{*}{ Q. 116} & \multicolumn{4}{|c|}{\begin{tabular}{l}Among the options given, identify the correct match between the po...

\begin{tabular}{|c|c|c|}\hline \multirow[t]{2}{*}{ Q. 117} & \multicolumn{2}{|c|}{ What is the correct order of decreasing crystallinity of the given polymers? } \\\hline...

\begin{tabular}{l|l|}Q. 118 & Choose the correct option that best correlates the graphs with the polymerization \\methods. \\\hline& $\mathrm{P}$ - living polymerization;...

\begin{tabular}{|c|c|c|c|c|}\hline \multirow[t]{6}{*}{ Q. 119} & \multicolumn{4}{|c|}{\begin{tabular}{l}From the options given, identify the correct match(es) between the...

\begin{tabular}{l|l}Q.120 & Among the options given, which agents are used to vulcanize or cure rubbers? \\\hline& Dicumyl peroxide \\\hline& Zinc stearate \\\hline& Carb...

\begin{tabular}{l|l}Q.121 & \begin{tabular}{l}Lipase is a natural enzyme, which cleaves carboxylic ester bonds. Among the \\options given, identify the polymer(s) degrade...

\begin{tabular}{l|l}Q. 122 & \begin{tabular}{l}Among the options given, identify the correct pair(s) of catalyst and co-catalyst \\that form a Ziegler-Natta catalyst.\end...

\begin{tabular}{|c|c|c|c|c|}\hline \multirow[t]{2}{*}{ Q. 123} & \multicolumn{4}{|c|}{\begin{tabular}{l}Mechanical stress is applied on a polymer. Identify the correct ma...

\begin{tabular}{|c|c|}\hline Q. 124 & \begin{tabular}{l}Stress versus elongation profiles for different polymeric materials are shown in the \\figure. Choose the combinat...

\begin{tabular}{l|l}Q.125 & \begin{tabular}{l}Among the options given, which method(s) is/are used for the synthesis of atactic \\polystyrene?\end{tabular} \\\hline& Free...

Q. 126 A nylon sample of $0.03 \mathrm{~m}^{2}$ cross-sectional area is subjected to a creep load of $10 \mathrm{kN}$. The load is removed after a duration of $60 \mathrm...

Q. 127 Polyvinylidine fluoride (PVDF) was quenched from the melt in one case and in the other case, it was slowly cooled from the melt at $10^{\circ} \mathrm{C} / \mathrm...

Q. 128 A polymeric material of density $0.9 \mathrm{~g} / \mathrm{cc}$ and melt volume of $10 \mathrm{cc}$ in an extruder has a residence time of $100 \mathrm{~s}$. The o...

Q. 129 A polymer weighing $0.2 \mathrm{~g}$ is dissolved in $100 \mathrm{ml}$ of benzene and has a relative viscosity of 1.5 . The polymer obeys Mark-Houwink equation wit...

Q. 130 A continuous and aligned glass-fiber reinforced composite consists of $40 \mathrm{vol} \%$ of glass-fiber having a modulus of elasticity of $69 \mathrm{GPa}$ and $...