Polymer Technology MCQs

Option A: Denier is defined as weight in gm of 9000 metres length of a fibre, while tex is defined as weight in gm of 1000 metres length of fibre

Option B: Crimp is a measure of the difference between the length of the straightened and unstraightened fibre

Option C: Dacron fibres, acrylic fibres, viscose rayon fibres & cellulose acetate fibres are all prepared by wet spinning

Option D: Nylon fibres have greater water absorption capacity than polyester fibres

Correct Answer: Dacron fibres, acrylic fibres, viscose rayon fibres & cellulose acetate fibres are all prepared by wet spinning ✔

Option A: Polystyrene is a thermoplastic polymer

Option B: Protein is a natural polymer

Option C: Neoprene is a natural rubber

Option D: Polythene is a copolymer, while SBR is a homopolymer

Correct Answer: Neoprene is a natural rubber ✔

Option A: Polymers made of only one monomer is called homopolymer

Option B: Polymers made of more than one monomer is called copolymer or mixed polymer

Option C: Vulcanised rubber is more elastic than natural rubber

Option D: The intermolecular forces in thermoplastic polymers are intermediate to that of elastomers &

Correct Answer: Polymers made of only one monomer is called homopolymer ✔

Option A: Addition polymers are generally formed by chain growth polymerisation

Option B: Condensation polymers are generally formed by step growth polymerisation

Option C: Teflon is formed by step growth polymerisation

Option D: Bakelite is formed by step growth polymerisation

Correct Answer: Teflon is formed by step growth polymerisation ✔

Option A: Polymeric fibres are never produced by addition polymerisation

Option B: Property of tackiness is exhibited by uncured rubber

Option C: Sharp melting point is not observed in thermoplastic polymers

Option D: Polythene generally has an excellent resistance to ultra violet rays

Correct Answer: Polymeric fibres are never produced by addition polymerisation ✔

Option A: Linear polymers are formed from bifunctional groups only and are normally thermoplastic

Option B: Cross-linked branched chain polymers are either elastometric or thermosetting

Option C: Branching in case of cross-linked polymers caused by small amount of impurities in

Option D: Dibasic acids reacts with dihydric alcohols to give polyesters using addition polymerisation

Correct Answer: D. Dibasic acids reacts with dihydric alcohols to give polyesters using addition polymerisation
reaction ✔

Option A: Cold SBR is superior as compared to hot SBR

Option B: Polymerisation temperature can modify the properties of SBR

Option C: Production of cold SBR employs lower pressure as compared to that of hot SBR

Option D: None of these

Correct Answer: None of these ✔

Option A: Polyurethane

Option B: SBR

Option C: Teflon

Option D: Bakelite

Correct Answer: SBR ✔

Option A: Teflon

Option B: Bakelite

Option C: SBR

Option D: None of these

Correct Answer: Teflon ✔

Option A: Low temperature thermal insulation as in refrigerator and air conditioners

Option B: Acoustic control and ceiling for building

Option C: High temperature thermal insulation in furnaces

Option D: Packing of delicate electronic gadgets

Correct Answer: High temperature thermal insulation in furnaces ✔

Option A: Sulphur

Option B: Bromine

Option C: Platinum

Option D: Alumina

Correct Answer: Sulphur ✔

Option A: Polythene

Option B: PVC

Option C: Polypropylene

Option D: Polyesters

Correct Answer: Polypropylene ✔

Option A: Nylon

Option B: Bakelite

Option C: Polythene

Option D: None of these

Correct Answer: Polythene ✔

Option A: Thiokol

Option B: Phenol formaldehyde

Option C: Urea formaldehyde

Option D: Polystyrene

Correct Answer: Thiokol ✔

Option A: Injection

Option B: Transfer

Option C: Extrusion

Option D: Compression

Correct Answer: Extrusion ✔

Option A: Vulcanise it

Option B: Protect it from deterioration on exposure to air

Option C: Make it non-inflammable

Option D: Make it thermosetting

Correct Answer: Protect it from deterioration on exposure to air ✔

Option A: -20

Option B: 50

Option C: 250

Option D: 500

Correct Answer: 50 ✔

Option A: Green sand

Option B: Injection

Option C: Shell

Option D: Dry sand

Correct Answer: Injection ✔

Option A: Ni

Option B: V2O5

Option C: Fe

Option D: Aluminium triethyl combined with titanium tetrachloride

Correct Answer: Aluminium triethyl combined with titanium tetrachloride ✔

Option A: 50

Option B: 75

Option C: 90

Option D: 99

Correct Answer: 90 ✔

Option A: Water impermeable cellophane

Option B: Polythene

Option C: Cellulose acetate

Option D: Teflon

Correct Answer: Polythene ✔

Option A: Melts & rubber like state

Option B: Amorphous glassy state

Option C: Partially crystalline state

Option D: All A., B. and C.

Correct Answer: D. All A., B. and C. ✔

Option A: Polyamide

Option B: Polyester

Option C: Polyolefin

Option D: Addition polymer

Correct Answer: Polyester ✔

Option A: Lucite

Option B: Sulphonated Bakelite

Option C: Polystyrene

Option D: Teflon

Correct Answer: Sulphonated Bakelite ✔

Option A: Nylon-6

Option B: Nylon-66

Option C: Polystyrene

Option D: PVC

Correct Answer: Nylon-6 ✔

Option A: 100

Option B: 150

Option C: 350

Option D: 450

Correct Answer: 150 ✔

Option A: poly-methyl-methacrylate

Option B: Polystyrene

Option C: Unsaturated polyester

Option D: Polypropylene

Correct Answer: poly-methyl-methacrylate ✔

Option A: Polystyrene

Option B: Polypropylene

Option C: Neoprene

Option D: None of these

Correct Answer: Neoprene ✔

Option A: Soft

Option B: Less elastic

Option C: Plastic

Option D: Tacky

Correct Answer: Less elastic ✔

Option A: Thiokol

Option B: Plexiglass or Lucite

Option C: Dacron

Option D: Teflon

Correct Answer: Plexiglass or Lucite ✔

Option A: Plasticiser

Option B: Paint & varnish

Option C: Fibers

Option D: Film forming materials

Correct Answer: Fibers ✔

Option A: Butyl rubber

Option B: Nitrile rubber

Option C: Neoprene

Option D: Thiokol

Correct Answer: Nitrile rubber ✔

Option A: 10 to 103

Option B: 102-107

Option C: 107-109

Option D: 109-1011

Correct Answer: 102-107 ✔

Option A: Acrylonitrile & butadiene

Option B: Acrylonitrile & styrene

Option C: Isobutylene & isoprene

Option D: None of these

Correct Answer: Acrylonitrile & butadiene ✔

Option A: Not used for surface coating

Option B: A good abrasive

Option C: An elastomer

Option D: A polyester

Correct Answer: A good abrasive ✔

Option A: Expanded polystyrene

Option B: Saturated polyester

Option C: Perspex

Option D: PVC

Correct Answer: Expanded polystyrene ✔

Option A: Nylon-66

Option B: Polypropylene

Option C: PVC

Option D: Poly tetra fluoro ethylene

Correct Answer: Nylon-66 ✔

Option A: Harder

Option B: Tougher

Option C: Chemically inert

Option D: More flexible

Correct Answer: More flexible ✔

Option A: Polystyrene

Option B: Polythene

Option C: Polypropylene

Option D: PVC

Correct Answer: Polystyrene ✔

Option A: Hydrogen

Option B: Covalent

Option C: Ionic

Option D: None of these

Correct Answer: Hydrogen ✔

Option A: Non-inflammable

Option B: Harder

Option C: Stronger

Option D: Both B. & C.

Correct Answer: D. Both B. & C. ✔

Option A: Toys and combs

Option B: Packaging bags

Option C: Non-sticking utensils

Option D: Electrical insulation

Correct Answer: Toys and combs ✔

Option A: Is a synthetic polymer

Option B: Does not stick to the wound unlike cotton

Option C: Can absorb over 90% of its own weight of water

Option D: Both B. and C.

Correct Answer: Does not stick to the wound unlike cotton ✔

Option A: Cl2CH-CH3

Option B: F2 C = CF2

Option C: F3 C-CF3

Option D: FClC = CF2

Correct Answer: F2 C = CF2 ✔

Option A: Teflon

Option B: Polythene

Option C: Terylene

Option D: Nylon

Correct Answer: Polythene ✔

Option A: Thermosetting

Option B: Thermoplastic

Option C: Elastometric

Option D: Having extremely high softening point

Correct Answer: Thermoplastic ✔

Option A: Fibrous

Option B: Leathery

Option C: Rubbery

Option D: Hard

Correct Answer: Leathery ✔

Option A: Polystyrene

Option B: Polyvinyl acetate

Option C: Polypropylene

Option D: Polyvinyl chloride-co-vinyl acetate

Correct Answer: Polypropylene ✔

Option A: Solid

Option B: Liquid

Option C: Combination of solid & liquid

Option D: Neither solid nor liquid

Correct Answer: Combination of solid & liquid ✔

Option A: 50000

Option B: 51600

Option C: 49200

Option D: 50800

Correct Answer: 50000 ✔

Option A: PVC

Option B: Polythene

Option C: Teflon/Dacron

Option D: Polystyrene

Correct Answer: Teflon/Dacron ✔

Option A: Decreases its tensile strength

Option B: Increases its ozone & oxygen reactivity

Option C: Increases its oil & solvent resistance

Option D: Converts its plasticity into elasticity

Correct Answer: Converts its plasticity into elasticity ✔

Option A: Polychlorophrene

Option B: Polyisoprene

Option C: Polytetrafluoroethylene

Option D: Poly vinyl acetate

Correct Answer: Polychlorophrene ✔

Option A: Cellulose acetate

Option B: Polyvinyl acetate

Option C: Thiokol

Option D: PVC

Correct Answer: Polyvinyl acetate ✔

Option A: Addition polymer

Option B: Condensation polymer

Option C: Polyester

Option D: Both B. and C.

Correct Answer: D. Both B. and C. ✔

Option A: Better heat & acid resistant properties

Option B: Poorer resistance to alkalis

Option C: Poorer dyeability

Option D: All A., B. and C.

Correct Answer: D. All A., B. and C. ✔

Option A: Polyamides

Option B: Polyolefins

Option C: Polyacrylonitrile

Option D: Polyesters

Correct Answer: Polyacrylonitrile ✔

Option A: Vinyl acetate

Option B: Vinyl chloride

Option C: Propylene

Option D: Styrene

Correct Answer: Propylene ✔

Option A: Dacron

Option B: Nylon

Option C: Rayon

Option D: Orion

Correct Answer: Nylon ✔

Option A: Thiokol (a polysulphide rubber)

Option B: Butyl rubber

Option C: Neoprene

Option D: Polyurethane rubber

Correct Answer: Neoprene ✔

Option A: Polysulphide rubber

Option B: Polyamide fibre

Option C: Engineering plastic

Option D: Expanded polystyrene

Correct Answer: Polysulphide rubber ✔

Option A: Glycerol

Option B: Nitro cellulose

Option C: Camphor

Option D: None of these

Correct Answer: Camphor ✔

Option A: Monomer

Option B: Synthetic rubber

Option C: Polyester

Option D: None of these

Correct Answer: Synthetic rubber ✔

Option A: Good mechanical strength

Option B: Low viscosity

Option C: Low melting point

Option D: None of these

Correct Answer: Good mechanical strength ✔

Option A: Cellulose

Option B: Starch

Option C: Protein

Option D: None of these

Correct Answer: Cellulose ✔

Option A: Percent elongation

Option B: Resilience

Option C: Freezing point

Option D: Strength

Correct Answer: Resilience ✔

Option A: Neoprene

Option B: Bakelite

Option C: Nylon-66

Option D: Terylene

Correct Answer: Neoprene ✔

Option A: Polymer

Option B: Printing

Option C: Dyeing

Option D: Photographic

Correct Answer: Polymer ✔

Option A: Monomer

Option B: Inorganic polymer

Option C: Thermoplastic material

Option D: A natural polymer

Correct Answer: Inorganic polymer ✔

Option A: Siloxane elastomers

Option B: Polyamides

Option C: Vinyl polymers

Option D: Urea-formaldehyde resins

Correct Answer: Urea-formaldehyde resins ✔

Option A: Saturated polyester

Option B: Unsaturated polyester

Option C: Isoprene

Option D: Bakelite

Correct Answer: Saturated polyester ✔

Option A: Same as Dacron

Option B: A polyester

Option C: Both A. & B.

Option D: Neither A. nor B.

Correct Answer: C. Both A. & B. ✔

Option A: Polythene

Option B: Teflon

Option C: Bakelite

Option D: PVC

Correct Answer: Polythene ✔

Option A: Decorative paint

Option B: Decorative laminates

Option C: Electrical insulation

Option D: Glass reinforced plastics

Correct Answer: Decorative paint ✔

Option A: Nylon-6

Option B: Nylon-66

Option C: Dacron

Option D: Rayon

Correct Answer: Nylon-6 ✔

Option A: Density

Option B: Tensile strength

Option C: Melting point

Option D: Degree of irregularity in atomic packing

Correct Answer: Degree of irregularity in atomic packing ✔

Option A: Is produced by Polycondensation reaction

Option B: Uses either emulsion or suspension polymerisation methods

Option C: Can be made thermosetting by adding a plasticiser

Option D: Softening temperature is 200°C

Correct Answer: Uses either emulsion or suspension polymerisation methods ✔

Option A: Automobile cushion

Option B: Thermal insulation in refrigerator

Option C: Coating and adhesive

Option D: Fibre reinforced plastic (FRP)

Correct Answer: Fibre reinforced plastic (FRP) ✔

Option A: Can be repeatedly melted

Option B: Is useful for melt casting

Option C: Cannot be melted after forming

Option D: Is useful for spinning

Correct Answer: Cannot be melted after forming ✔

Option A: Condensation polymerisation product of Hexamethylene diamine and adipic acid

Option B: Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol

Option C: Thermosetting material

Option D: None of these

Correct Answer: None of these ✔

Option A: Direct

Option B: Indirect

Option C: Impact

Option D: None of these

Correct Answer: Impact ✔

Option A: Thermoplastic

Option B: Thermosetting

Option C: Linear

Option D: Glass like transparent

Correct Answer: Thermosetting ✔

Option A: PVC

Option B: Bakelite

Option C: PTFE

Option D: Epoxy resin

Correct Answer: PVC ✔

Option A: Molecular sizes

Option B: Magnitude of intermolecular forces

Option C: Resistance to heat

Option D: Polymerisation mechanism

Correct Answer: Magnitude of intermolecular forces ✔

Option A: Addition polymer

Option B: Poly amide

Option C: Homopolymer

Option D: None of these

Correct Answer: None of these ✔

Option A: Styrene butadiene rubber (SBR)

Option B: Neoprene

Option C: PVC

Option D: None of these

Correct Answer: Styrene butadiene rubber (SBR) ✔

Option A: Neoprene

Option B: PVC

Option C: Polyurethane

Option D: SBR

Correct Answer: PVC ✔

Option A: Silk

Option B: Viscose rayon

Option C: Wool

Option D: Cotton

Correct Answer: Viscose rayon ✔

Option A: Cellulosic

Option B: Polyamide

Option C: Polyester

Option D: Natural

Correct Answer: Cellulosic ✔

Option A: Ethyl benzene

Option B: Cyclohexane

Option C: Ethylene glycol

Option D: DMT

Correct Answer: Cyclohexane ✔

Option A: 10-2 to 10-5

Option B: 10-4 to 10-7

Option C: 10-1 to 10-2

Option D: 10-8 to 10-10

Correct Answer: 10-2 to 10-5 ✔

Option A: Bakelite

Option B: Nylon-66

Option C: Epoxy resin

Option D: Silicone rubber

Correct Answer: Nylon-66 ✔

Option A: Do not soften on application of heat

Option B: Are heavily branched molecules

Option C: Are solvent insoluble

Option D: None of these

Correct Answer: None of these ✔

Option A: Thermoplastic

Option B: Thermosetting

Option C: Either A. or B.

Option D: Fibres only

Correct Answer: Thermosetting ✔

Option A: Lower melting point

Option B: More abrasion resistant properties

Option C: Higher hardness

Option D: All A., B. and C.

Correct Answer: nt properties ✔

Option A: Polystyrene

Option B: Melamine

Option C: Polystyrene

Option D: Polyurethane

Correct Answer: Polystyrene ✔

Option A: Cross linked polystyrene

Option B: Phenol formaldehyde resins

Option C: Polyesters

Option D: Polyamides

Correct Answer: Cross linked polystyrene ✔

Option A: Butyl rubber

Option B: Silicon rubber

Option C: Nitrile rubber

Option D: Silicone rubber

Correct Answer: Silicone rubber ✔

Option A: Polypropylene

Option B: Polystyrene

Option C: Polyester

Option D: Polyurethane

Correct Answer: Polystyrene ✔

Option A: Polyacrylonitrile

Option B: Polyamide

Option C: Saturated polyester

Option D: Alkyd resin

Correct Answer: Polyacrylonitrile ✔