Engineering Sciences
2025 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE XE 2025 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 118–120 of 175. Imported answers require review unless explicitly marked reviewed.
Question 118
Open questionXE-FMCQ1 markNeeds review
Thermoplastic Polyurethane and Polyamide 6 both contain amide linkages, but when compared to Polyurethane, Polyamide 6 shows higher melting point due to ________________.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 119
Open questionXE-FMCQ2 marksNeeds review
Injection molding is typically used to make plastic parts. If the pressure at the gate is monitored as a function of time during the injection of a thermoplastic polymer, identify the profile that best describes this event.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 120
Open questionXE-FMSQ2 marksNeeds review
The ‘unperturbed dimension’ of the polymer chain is represented as,
where,
= root-mean square end-to-end distance
= average length of a segment
= number of segments in the chain Using the above information, root-mean square end-to-end distance of a branched polyethene would be ________________ when compared with that of the linear polyethene of the same molecular weight and the same number of segments.Your answerSelect all correct options. You can choose more than one.
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