a) HIPS & ABS b) POM & Nylon c) PVC d) PMMA Answer: b Explanation: Among the ...
View QuestionIn drape forming technique _______ is used for forming.
a) Vacuum b) High pressure c) High Temperature d) Low pressure Answer: a Explanation: In drape forming ...
View QuestionAPET is stable till 230°C.
a) True b) False Answer: b Explanation: The given statement is false. CPET (Crystalline PET) is stable ...
View QuestionSPPF in thermoforming stands for ____________
a) Soluble peer pressure forming b) Soluble phase pressure forming c) Solid peer pressure forming d) Solid phase ...
View QuestionFrom which of the following processes, canopies for racing vehicles are made?
a) Drape forming b) Mechanical forming c) Pressure forming d) Free blowing Answer: a Explanation: Canopies for ...
View QuestionIn thermoforming, plastic sheets are heated to ________
a) Boiling point b) Tg point c) Sag point d) Melting point Answer: c Explanation: In thermoforming, ...
View QuestionWhich of the following is not a type of overwrap?
a) Decorative wrap b) Paper wrap c) Stretch wrap d) Shrink wrap Answer: ...
View QuestionWhich of the following polymer is also called general purpose shrink film?
a) PE b) PP c) PVC d) Polyolefin Answer: b Explanation: Polypropylene film is also known as ...
View QuestionWhich of the following polymer is used for wrapping large and bulky items?
a) PE b) PP c) PVC d) Polyolefin Answer: a Explanation: PE- Polyethylene is used for wrapping ...
View QuestionThermosetting polymers can be used for shrink or stretch wrapping.
a) True b) False Answer: b Explanation: The above statement is false. Thermosetting plastics cannot be used ...
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