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Chemical Engineering
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Polymer Technology
Comments
Question
Ion exchange resins are made of
Options
A. lucite
B. sulphonated bakelite
C. polystyrene
D. teflon
Correct Answer
sulphonated bakelite
Polymer Technology problems
Search Results
1. Chromite refractories are used in
Options
A. bottom of soaking pits.
B. between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other.
C. both (a) & (b)
D. neither (a) and (b)
Show Answer
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Discuss
Correct Answer: both (a) & (b)
2. Fireclay bricks are used in the
Options
A. furnaces allowed to cool frequently
B. flues
C. chimney linings
D. all (a), (b) and (c)
Show Answer
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Discuss
Correct Answer: all (a), (b) and (c)
3. Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory
Options
A. mortars
B. cements
C. castables
D. none of these
Show Answer
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Correct Answer: castables
4. Refractory materials are never used in the construction of
Options
A. segar cones
B. orton cones
C. pressure vessels
D. ovens & retorts
Show Answer
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Discuss
Correct Answer: pressure vessels
5. Pick out the wrong statement.
Options
A. Fluxing material like lime is added in clay to reduce the vitrification temperature.
B. Main constituents of clay are alumina and silica.
C. Addition of sand in ceramic materials makes it non-plastic, increases its fusion point and reduces its shrinkage on burning.
D. Vitrification of fireclay material is done to increase its porosity.
Show Answer
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Correct Answer: Vitrification of fireclay material is done to increase its porosity.
6. __________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate.
Options
A. Fibrous
B. Leathery
C. Rubbery
D. Hard
Show Answer
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Correct Answer: Leathery
7. Polymethyl methacrylate, which is an acrylic resin, is also called
Options
A. thiokol
B. plexiglass or lucite
C. dacron
D. teflon
Show Answer
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Discuss
Correct Answer: plexiglass or lucite
8. Perspex can be used as a substitute of glass. Its monomer is
Options
A. methyl methacrylate
B. DMT
C. butadiene
D. tetrafluroethylene
Show Answer
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Correct Answer: methyl methacrylate
9. Low density polythene as compared to high density polythene is
Options
A. harder
B. tougher
C. chemically inert
D. more flexible
Show Answer
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Correct Answer: more flexible
10. Which of the following is stretched into fibres?
Options
A. Saturated polyester
B. Unsaturated polyester
C. Isoprene
D. Bakelite
Show Answer
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Discuss
Correct Answer: Saturated polyester
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