2023 · Paper 1

Complete GATE XE 2023 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 124–126 of 175. Imported answers require review unless explicitly marked reviewed.

Question 124

Open question

XE-FMSQ2 marksNeeds review

Stress versus elongation profiles for different polymeric materials are shown in the figure. Chose the combination that best describes these profiles.



Your answerSelect all correct options. You can choose more than one.

A.

1-Nylon fibers; 2-Polyethelene; 3-Vulcanized ruber; 4-Polystyrene

B.

1-Polyethelene; 2-Vulcanized ruber; 3-Polystyrene; 4-Nylon fibers

C.

1-Polystyrene; 2-Nylon fibers; 3-Polyethelene; 4-Vulcanized ruber

D.

1-Vulcanized ruber; 2-Polyethelene; 3-Nylon fibers; 4-Polystyrene

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Question 125

Open question

XE-FMSQ2 marksNeeds review

Among the options given, which method(s) is/are used for the synthesis of atactic polystyrene?

Your answerSelect all correct options. You can choose more than one.

A.

Free radical polymerization

B.

Ring opening polymerization

C.

Polycondensation

D.

Ionic polymerization

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Question 126

Open question

XE-FNAT2 marksNeeds review

A nylon sample of 0.03 m² cross-sectional area is subjected to a creep load of 10 kN. The load is removed after a duration of 6 s. Young’s modulus and the viscosity for nylon are 1 GPa and 300 Giga Poise. The compliance of the specimen is ________×10⁻⁹ m²/N. (Answer in integer)

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