GATE XE 2022 Paper 1 — page 41

Questions 121–123 of 175. Imported answers require review unless explicitly marked reviewed.

Paper practice 175 questionsPage 41 of 59

Match the following polymer product with its most appropriate processing technique

Polymer product: P. Bottle Q. Blister packaging R. Reinforced electric poles S. Sewage pipes

Processing technique:

Extrusion

Pultrusion

Injection blow molding

Thermoforming

Your answerChoose one option.

P-3; Q-4; R-1; S-2

P-3; Q-4; R-2; S-1

P-4; Q-3; R-2; S-1

P-3; Q-2; R-4; S-1

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Match the following additives to their respective functions

Additive: P. p-phenylenediamine Q. Trisyl phosphate R. Polybutadiene rubber S. Talc

Function:

Flame retardant

Impact modifier

Nucleating agent

Antioxidant

Your answerChoose one option.

P-4; Q-2; R-1; S-3

P-3; Q-1; R-2; S-4

P-4; Q-1; R-3; S-2

P-4; Q-1; R-2; S-3

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Match the polymers with their characteristic infrared (IR) stretch frequency

Polymer: P. Polyurethane Q. Polyethylene R. Polysulfone S. Acrylonitrile-butadiene-styrene copolymer

IR stretch (cm⁻¹):

~234

~151

~1720

~2914

Your answerChoose one option.

P-4; Q-3; R-2; S-1

P-3; Q-4; R-2; S-1

P-3; Q-4; R-1; S-2

P-3; Q-2; R-4; S-1

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2022 · Paper 1