Polymer Technology MCQ Questions & Answers

41

Poly tetra flouro ethylene (PTFE) is known as

A) Dacron B) Teflon C) Bakelite D) Celluloid

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Answer & Solution

Answer: Option B

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42

The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is

A) Polyvinyl alcohol B) Polyvinyl acetale C) Polyvinyl butyral D) PVC

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Answer & Solution

Answer: Option C

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43

Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the

A) Electrical insulation purpose B) Tanning of leather C) Strengthening of plaster of paris D) Decorative laminates

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Answer & Solution

Answer: Option C

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44

Liners of bags are usually made of

A) Polythene B) PVC C) Polypropylene D) Polyesters

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Answer & Solution

Answer: Option C

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45

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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Answer & Solution

Answer: Option C

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46

Styrene butadiene rubber is commercially manufactured by

A) Bulk polymerisation B) Suspension polymerisation C) Solution polymerisation D) Emulsion polymerisation

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Answer & Solution

Answer: Option D

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47

Styrene which is a monomer for the production of polystyrene, is commercially produced by the

A) Catalytic dehydrogenation of ethyl benzene B) Dehydration of ethyl alcohol followed by hydrogenation C) Reacting ethylene oxide with acetal-dehyde D) Fermentation of starch

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Answer & Solution

Answer: Option A

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48

Pick out the wrong statement.

A) For the manufacture of styrene, the major raw materials are benzene and ethylene B) One inportant copolymer of styrene is SBR, which is widely used in the manufacture of automobile tyres C) Manufacture of phenol by chloroben-zene-eaustic process involves. The chlorination of benzene, causticisation and hydrolysis D) Phenol manufacture by chlorobenzene-caustic process is competitive even when low cost chlorine is not available

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Answer & Solution

Answer: Option D

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49

Which of the following is not a condensation polymer?

A) Bakelite B) Melamine polymer C) Polymethylmethacrylate (PMMA) D) None of these

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Answer & Solution

Answer: Option C

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50

Bristles of tooth brushes are made of

A) Nylon-6 B) Nylon-66 C) Polystyrene D) PVC

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Answer & Solution

Answer: Option B

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Polymer Technology MCQ Questions & Answers | Chemical Engineering