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Polymer Technology
Comments
Question
Non sulphonated hard bakelites are not used for making
Options
A. ion-exchange resins
B. fountain pen barrels
C. formica table tops
D. combs
Correct Answer
ion-exchange resins
Polymer Technology problems
Search Results
1. Paper like thin plastic articles can be produced by
Options
A. blow moulding
B. vacuum thermo forming
C. injection moulding
D. none of these
Show Answer
Scratch Pad
Discuss
Correct Answer: vacuum thermo forming
2. Tyres are made by
Options
A. injection moulding
B. extrusion
C. rotational moulding
D. compression moulding
Show Answer
Scratch Pad
Discuss
Correct Answer: rotational moulding
3. The major component of acrylic fibres is
Options
A. polyamides
B. polyolefins
C. polyacrylonitrile
D. polyesters
Show Answer
Scratch Pad
Discuss
Correct Answer: polyacrylonitrile
4. Bakelite is a/an
Options
A. addition polymer
B. elastomer
C. thermoplastic
D. none of these
Show Answer
Scratch Pad
Discuss
Correct Answer: none of these
5. Dacron is a/an
Options
A. addition polymer
B. condensation polymer
C. polyester
D. both (b) and (c)
Show Answer
Scratch Pad
Discuss
Correct Answer: both (b) and (c)
6. Thermal pyrolysis of ethylene dichloride produces
Options
A. trichlorethylene
B. vinyl chloride
C. ethanol amine
D. ethylene oxide
Show Answer
Scratch Pad
Discuss
Correct Answer: vinyl chloride
7. Identify the group in which all the polymers mentioned can be used to make fibres.
Options
A. Butadiene copolymers, Polyamides, Urea aldehyde
B. Cellulose derivatives, Polyisoprene, Polyethylene
C. Cellulose derivatives, Polyamides, Polyurathane
D. Polypropylene, Poly vinyl chloride, Silicon
Show Answer
Scratch Pad
Discuss
Correct Answer: Cellulose derivatives, Polyisoprene, Polyethylene
8. Thermosetting polymers as compared to thermoplastic polymers
Options
A. are formed by addition polymerisation.
B. have three dimensional structure.
C. have linear structure.
D. none of these.
Show Answer
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Discuss
Correct Answer: have three dimensional structure.
9. __________ polymer is used for making unbreakable crockery.
Options
A. Thermoplastic
B. Melamine
C. Addition
D. none of these
Show Answer
Scratch Pad
Discuss
Correct Answer: Melamine
10. Molecular weights of plastics ranges from
Options
A. 1000 to 5000
B. 5000 to 1000
C. 20000 to 25000
D. 10
9
to l0
11
Show Answer
Scratch Pad
Discuss
Correct Answer: 20000 to 25000
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