Chemical Engineering - Polymer Technology

6. 

Polyhexamethylene adipimide is also known as

A. bakelite
B. nylon-66
C. epoxy resin
D. silicone rubber

Answer: Option B

Explanation:

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7. 

Unbreakable crockeries are made from __________ polymers.

A. polystyrene
B. melamine
C. polystyrene
D. polyurathane

Answer: Option B

Explanation:

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8. 

__________ is normally used for the manufacture of refrigerator components and transistor parts.

A. Polyproylene
B. Polystyrene
C. Polyester
D. Polyurathene

Answer: Option B

Explanation:

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9. 

Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser ?

A. Ethylene glycol
B. Stearic acid estors
C. Tricresyl phosphate
D. Esters of phthalic acid

Answer: Option A

Explanation:

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10. 

Bakelite is

A. same as polytetra flouro ethylene (PTFE).
B. an inorganic polymer.
C. same as thermoset phenol formaldehyde.
D. not a polymer.

Answer: Option C

Explanation:

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