Polymer Technology MCQs

124 MCQs  — Chemical Engineering MCQs  (Page 12 of 13)

Attempt Polymer Technology Quiz
Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m2. Which of the following polymers has the maximum film elongation (of the order of 100%) ?
A. Water impermeable cellophane
B. Polythene
C. Cellulose acetate
D. Teflon
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Polycaprolactam (Nylon – 6) is produced by the condensation polymerisation of caprolactam at 240-280°C in which the conversion of caprolactam is about ______________ percent?
A. 50
B. 75
C. 90
D. 99
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Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is_______________________?
A. Ni
B. V2o5
C. Fe
D. Aluminium triethyl combined with titanium tetrachloride
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Plastic articles are normally produced by _____________ moulding?
A. Green sand
B. Injection
C. Shell
D. Dry sand
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Temperature maintained in the emulsion polymerisation reactor for PVC manufacture is about ______________ ° C?
A. -20
B. 50
C. 250
D. 500
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Diphenylamine is added to rubber to_________________?
A. Vulcanise it
B. Protect it from deterioration on exposure to air
C. Make it non-inflammable
D. Make it thermosetting
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Plastic tubes & pipes are generally made by ______________ moulding?
A. Injection
B. Transfer
C. Extrusion
D. Compression
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Which of the following is an elastomer ?
A. Thiokol
B. Phenol formaldehyde
C. Urea formaldehyde
D. Polystyrene
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______________ is an addition polymer ?
A. Nylon
B. Bakelite
C. Polythene
D. None of these
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Liners of bags are usually made of ____________________?
A. Polythene
B. Pvc
C. Polypropylene
D. Polyesters
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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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