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Polymer Technolgy MCQs

Chemical Engineering Objective Questions

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120. The repeating units of PTFE are
A. Cl2CH = CH3
B. F2C = CF2
C. F3C = CF3
D. FClC = CF2
Discussion
121. Thermosetting plastic materials
A. Can be repeatedly melted
B. Is useful for melt casting
C. Can not be melted after forming
D. Is useful for spinning
Discussion
122. Which of the following polymers shows the highest anti-tacking properties?
A. Melamine formaldehyde resin
B. Phenolic resin
C. Epoxy resin
D. Alkyd resin
Discussion
123. Bakelite (phenol-formaldehyde) resin can not be used as
A. Decorative paint
B. Decorative laminates
C. Electrical insulation
D. Glass reinforced plastics
Discussion
124. Flexible plastic pipes are made of
A. High density polyethylene (HDPE)
B. Low density polyethylene (LDPE)
C. Polypropylene
D. Unsaturated polyester
Discussion
125. Synthetic polymer produced by using terephthalic acid and ethylene glycol is
A. Terylene
B. Nylon-66
C. PVC
D. Polyesterene
Discussion
126. The organic acid monomer in nylon 66 is
A. Sebasic acid
B. Terephthalic acid
C. Adipic acid
D. Benzoic acid
Discussion

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