Engineering Sciences
GATE XE topic:polymer-blends-composites PYQs
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Questions 21–23 of 23. Imported answers require independent review unless marked reviewed.
Question 106
Open questionXE-FMCQ1 markNeeds review
The impact strength of polystyrene can be enhanced by blending/mixing with
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Open questionXE-FNAT2 marksNeeds review
A composite of polypropylene reinforced with 20% by volume of glass fibre is to be prepared. If the density of glass fibre is 2540 kg/m³ and polypropylene is 900 kg/m³, then the mass of glass fibre required per kg of composite is ______ g (round off answer to the nearest whole number).
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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-FNAT2 marksNeeds review
Given T_g of polymer A is 100 °C and that of polymer B is -100 °C, then the T_g of a miscible blend of A and B containing 30 wt% of A is ______ °C (round off final answer to a single digit after decimal point).
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