Polymer Technology MCQs

124 MCQs  — Chemical Engineering MCQs  (Page 9 of 13)

Attempt Polymer Technology Quiz
_____________ tubes are good substitute for human blood vessels on heart by-pass operation?
A. Pvc
B. Polythene
C. Teflon/dacron
D. Polystyrene
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Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800 ?
A. 50000
B. 51600
C. 49200
D. 50800
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Visco-elastic behaviour exhibited by plastics is a ______________ like behaviour?
A. Solid
B. Liquid
C. Combination of solid & liquid
D. Neither solid nor liquid
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Benzoyl chloride is not used as a catalyst in the manufacture of___________________?
A. Polystyrene
B. Polyvinyl acetate
C. Polypropylene
D. Polyvinyl chloride-co-vinyl acetate
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_____________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate?
A. Fibrous
B. Leathery
C. Rubbery
D. Hard
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Linear polymers are normally_________________?
A. Thermosetting
B. Thermoplastic
C. Elastometric
D. Having extremely high softening point
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Condensation polymerisation is not involved in the manufacture of_________________?
A. Teflon
B. Polythene
C. Terylene
D. Nylon
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The repeating units of PTFE are___________________?
A. Cl2ch-ch3
B. F2 c = cf2
C. F3 c-cf3
D. Fclc = cf2
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Rayon is superior to cotton in making gauge for wound treatment, because rayon_____________________?
A. Is a synthetic polymer
B. Does not stick to the wound unlike cotton
C. Can absorb over 90% of its own weight of water
D. Both b. and c.
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Polystyrene is a light, transparent, thermoplastic material used for making __________________?
A. Toys and combs
B. Packaging bags
C. Non-sticking utensils
D. Electrical insulation
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
لڑاکا، متنازع، جھگڑالو

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