Polymer MCQ
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Multiple Choice Questions (MCQ) on Fuels
Multiple Choice Questions
Q.1. A polymer made up of more than one type of monomer is termed as
- Homopolymer
- Copolymer
- Homochain polymer
- Heterochain polymer
Answer: Copolymer
Q.2. Which of the following is a natural polymer
- Cellulose
- Polyethene
- Teflon
- Nylon
Answer: Cellulose
Q.3. A polymer that can be softened on heating and hardens when cooled are
- Thermosetting plastics
- Elastomers
- Fibres
- Thermoplastics
Answer: Thermoplastics
Q.4. A monomer can form a polymer if its functionality is at least
- One
- Two
- Three
- Four
Answer: Two
Q.5. A polymer that changes reversibly into hard and rigid materials on heating and cannot be reshaped once it sets is
- Thermoplastics
- Fibres
- Thermosetting plastics
- Elastomers
Answer: Thermosetting plastics
Q.6. Which of the following is not a free radical initiator
- Azo compounds
- Hydroperoxides
- Peroxides
- AlCl3
Answer: AlCl3
Q.7. The number of repeating units (n) in a polymer is called
- Degree of polymerisation
- Polydispersity index
- Molecular weight of polymer
- Tacticity of a polymer
Answer: Degree of polymerisation
Q.8. An example of condensation polymer is
- Polyethene
- Polyvinylchloride
- Polyacrylonitrile
- Terylene
Answer: Terylene
Q.9. The various polymerisation techniques are
- Bulk polymerisation
- Solution polymerisation
- Suspension polymerisation
- All of the above
Answer: All of the above
Q.10. The molecular weight of a polymer is expressed as
- Number average molecular weight Mn
- Weight average molecular weight Mw
- Both the above
- None of the above
Answer: Both the above
Q.11. Which of the following is not a thermosetting plastic
- Bakelite
- Melamine
- Epoxyresins
- Teflon
Answer: Teflon
Q.12. Hollow articles like bottles and hollow toys are manufactured by
- Compression moulding
- Transfer moulding
- Blow moulding
- Extrusion moulding
Answer: Blow moulding
Q.13. The plastic moulding process in which the mould has two halves, the upper with a projection called the male die and the lower with a cavity called the female die is
- Compression moulding
- Injection moulding
- Transfer moulding
- Blow moulding
Answer: Compression moulding
Q.14. Plexiglass used as a substitute for glass is chemically
- Polyacrylonitrile
- Polymethylmethacrylate
- Polystyrene
- Polytetrafluoroethylene
Answer: Polymethylmethacrylate
Q.15. The trade name of the polymer-coated on non-stick utensils is
- Dacron
- Orlon
- Teflon
- Nylon
Answer: Teflon
Q.16. Bakelite is prepared by the condensation polymerisation of
- Phenol and formaldehyde
- Urea and formaldehyde
- Phenol and acetaldehyde
- Urea and acetone
Answer: Phenol and formaldehyde
Q.17. Glyptal a thermoset polyester is prepared by condensing glycerol (a triol) and
- Adipic acid
- Phthalic anhydride
- Glycol
- Styrene
Answer: Phthalic anhydride
Q.18. Cushions for automobiles and furniture are made of
- Polyurethane
- Nylon
- Cellulose
- Buna–S
Answer: Polyurethane
Q.19. A polymeric material, which at room temperature can be stretched to at least twice, its original length and returns to its original length as soon as the stretching force is removed is
- Composite material
- Elastomer
- Resin
- Thermoplastic
Answer: Elastomer
Q.20. Natural rubber obtained from the latex of Hevea brasiliensis is
- trans-1, 4-isoprene
- Butyl rubber
- cis-1, 4-polyisoprene
- Neoprene
Answer: cis-1, 4-polyisoprene
Q.21. Which of the following is not a synthetic rubber
- Buna – S
- Buna – N
- Neoprene
- cis-1, 4-polyisoprene
Answer: cis-1, 4-polyisoprene
Q.22. Rubber can be vulcanised to improve its properties by heating it with
- Sulphur
- Carbon powder
- Silica
- Alumina
Answer: Sulphur
Q.23. Fibres used for making garments, undergarments, socks, suitings and shirtings are
- Safety fibres
- Comfort fibres
- Industrial fibres
- Cellulosic fibres
Answer: Comfort fibres
Q.24. Safety fibres are used for making
- Clothes
- Curtains, carpets and seat covers
- Tubes, pipes, cars, planes
- Socks, ropes
Answer: Curtains, carpets and seat covers
Q.25. Which of the following is not a commonly used spinning method
- Melt spinning
- Dry spinning
- Wet spinning
- Solvent spinning
Answer: Solvent spinning
Q.26. Terylene or terene or dacron is a polymer of
- Hexamethylene diamine and adipic acid
- Ethylene glycol and terephthalic acid
- Ethylene glycol and phthalic acid
- Phthalic acid and glycerol
Answer: Ethylene glycol and terephthalic acid
Q.27. Acrylic fibre contains at least 85 percent by weight of
- Acrylonitrile monomer
- Ethylene monomer
- Vinyl chloride monomer
- Styrene monomer
Answer: Acrylonitrile monomer
Q.28. Mixers, blenders and food processors are made of a high-performance engineering thermoplastic called
- Flexiglass
- Polycarbonate
- Teflon
- Silicone resin
Answer: Polycarbonate
Q.29. The first known conducting polymer is
- Polyacetylene doped with iodine
- Polyaniline doped with HCl
- Polypyrrole doped with BF4–
- Polythiophene doped with ClO4–
Answer: Polyacetylene doped with iodine
Q.30. Polyphenylene vinylene is an example of
- Conducting polymer
- Electroluminescent polymer
- Biodegradable polymer
- Liquid crystalline polymer
Answer: Electroluminescent polymer
Q.31. A polymer capable of forming highly ordered regions in the liquid phase is
- Polyphenylene vinylene
- Polycarbonate
- Kevlar
- Polyvinylalcohol
Answer: Kevlar
Q.32. Which of the following polymers is used in organic light-emitting diodes
- Polycarbonate
- Polyphenylene vinylene (PPV)
- Polyacetylene
- Poly (p-phenyleneterephthalamide)
Answer: Polyphenylene vinylene (PPV)
Q.33. Biodegradable polymers find use in
- Orthopaedic fixation devices
- Controlled drug delivery
- Manufacture of plastic bags
- All of the above
Answer: All of the above
Q.34. The temperature below which an amorphous polymer becomes hard, brittle and breaks like glass is called
- Glass transition temperature Tg
- Melting temperature Tm
- Breaking temperature
- Solidification temperature
Answer: Glass transition temperature Tg
Q.35. Materials that do not completely recover their original size when the deforming force is removed are said to exhibit
- Elastic deformation
- Visco elasticity
- Plastic deformation
- None of the above
Answer: Visco elasticity
Q.36. Polymers are degraded by
- Heat
- Radiation
- Oxidation
- All the above
Answer: All the above
Q.37. Epichlorohydrin and bisphenol-A polymerise to give
- Epoxy resins
- Polycarbonates
- Glyptal
- Synthetic rubber
Answer: Epoxy resins
Q.38. Polyurethane is obtained from
- p-phenyl di-isocyanate and ethylene glycol
- Phenyl isocyanate and ethyl alcohol
- Ethylene glycol and terephthalic acid
- Bisphenol A + glycol
Answer: p-phenyl di-isocyanate and ethylene glycol