Polymer Technology Jobs Questions and Answers - Set 03 - ObjectiveBooks

Polymer Technology Jobs Questions and Answers - Set 03

Practice Test: Question Set - 03

1. Teflon is
    (A) Phenol formaldehyde
    (B) An inorganic polymer
    (C) Polytetrafluroethylene (PTFE)
    (D) A monomer

2. Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber?
    (A) Carbon
    (B) Alkylated diphenyl amine
    (C) Thiokol
    (D) Magnesium

3. Orlan fibre which is used as a wool substitute is
    (A) An amorphous polymer
    (B) A natural polymeric fibre
    (C) Polyacrylonitrile
    (D) Poly-methyl-methacrylate (PMMA)

4. Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styrene-acrylonitrile copolymer with butadiene based elastomer, is a/an
    (A) Rigid foam
    (B) Engineering plastic
    (C) Thermosetting polymer
    (D) Spongy rubber

5. Which of the following additives are added to plastics to make it impervious to X-rays?
    (A) Asbestos
    (B) Barium salt
    (C) Carborundum
    (D) Phthalic acid

6. Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin.
    (A) Resorcinol
    (B) Phenol
    (C) Para-cresol
    (D) Melamine

7. Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is
    (A) Chloroethane
    (B) Chloroprene
    (C) Isoprene
    (D) None of these

8. The monomer for the production of neoprene rubber is
    (A) Acetylene
    (B) Chloroprene
    (C) Isoprene
    (D) None of these

9. Zeigler process
    (A) Produces high density polythene
    (B) Uses no catalyst
    (C) Produces low density polythene
    (D) Employs very high pressure

10. Which of the following polymers belong to the class of formaldehyde resin?
    (A) Melamine resins
    (B) Teflon
    (C) Dacron
    (D) None of these

11. Polypropylene compared to polythene is
    (A) Harder
    (B) Stronger
    (C) Lighter
    (D) All (a), (b) and (c)

12. Epoxy resins (i.e., epoxide polymers)
    (A) Are made by addition polymerisation reaction only
    (B) Contain an epoxy group (fig bellow) at the ends of the polymer
Polymer Technology - Set 03, Question No. 12
    (C) Are cross-linked polymers only
    (D) Use emulsion polymerisation methods

13. Nylon-6 as compared to nylon-66 is
    (A) Harder
    (B) More abrasion resistant
    (C) Having higher melting point
    (D) None of these

14. Nylon-6 is manufactured from
    (A) Caprolactam
    (B) Adipic acid and Hexamethylenediamine
    (C) Maleic anhydride and Hexamethylenediamine
    (D) Sebacic acid and Hexamethylenediamine

15. Pick out the wrong statement.
    (A) For the manufacture of styrene, the major raw materials are benzene and ethylene
    (B) One important 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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