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Polymer Technology MCQ Questions & Answers

Polymer Technology MCQs : This section focuses on the "Polymer Technology". These Multiple Choice Questions (MCQs) should be practiced to improve the Polymer Technology skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

__________ tubes are good substitude for human blood vessels onrheart by-pass operation.

B. Polythene
C. Teflon/dacron
D. Polystyrene

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Question 2

Polymethyl methacrylate (PMMA) is known as

A. bakelite
B. teflon
C. perspex
D. nylon-6

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Question 3

Starting material for the production of SBR is

A. ethyl alcohol
B. ethylene
C. both (a) & (b)
D. neither (a) nor (b)

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Question 4

Orlan fibre which is used as a wool sub stitute is

A. an amorphous polymer.
B. a natural polymeric fibre.
C. polyacrylonitrile.
D. polymethylmethacrylate (PMMA).

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Question 5

Neoprene is a

A. monomer
B. synthetic rubber
C. polyester
D. none of these

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Question 6

Which of the following polymers has the tendency of decomposing before melting ?

A. Polystyrene
B. Nylon
D. None of these

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Question 7

In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer ?

A. Bakelite (phenol formaldehyde)
B. Polyester
C. Polythene
D. Nylon-6

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Question 8

Dacron (or terylene) fibres as compared to nylon fibres have

A. better heat & acid resistant properties.
B. poorer resistance to alkalis.
C. poorer dyeability.
D. all (a), (b) and (c).

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Question 9

Neoprene is the trade name of

A. polyurethane
B. phenol formaldehyde
C. polychlorophrene
D. styrene butadiene rubber (SBR)

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Question 10

__________ is not a polyester fibre.

A. Terylene
B. Dacron
C. Nylon
D. Polyacrylonitrite

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Question 11

The organic acid monomer in nylon 66 is

A. sebasic acid
B. terephthalic acid
C. adipic acid
D. benzoic acid

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Question 12

Cellulose is the main contituent of most __________ fibres.

A. acrylic
B. spandex
C. synthetic
D. natural

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Question 13

The monomer of poly vinyl chloride (PVC) is

A. chloroethene
B. ethylene dichloride
C. ethyl chloride
D. chloroform

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Question 14

Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex ?

A. Ammonium alum
B. Potassium alum
C. both a & b
D. neither a nor b

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Question 15

Vinyl flooring is done using __________ sheets.

A. polypropylene
C. polythene
D. polyvinyl acetate

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Question 16

The synthetic fibres produced from __________ are known as rayon.

A. lignin
B. cellulose
C. polyamides
D. ethylene glycol

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Question 17

Zeigler - Natta catalyst (AlR3 - AlCl3) is used in the polymerisation of

A. vinyl acetate
B. vinyl chloride
C. propylene
D. styrene

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Question 18

Dacron is a/an

A. polyester
B. unsaturated polyester
C. polyamide
D. inorganic polymer

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Question 19

90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ °C.

A. -5
B. Oct-30
C. 250-280
D. 500-600

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Question 20

Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces

A. nylon-6
B. dacron
C. polyester

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Question 21

Styrene butadiene rubber (SBR) as compared to natural rubber has

A. poor tensile strength.
B. poorer resistance.
C. greater amount of heat build up heavy loading.
D. all (a), (b) ana (c).

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Question 22

Lavatory cisterns are normally made of

A. expanded polystyrene
B. saturated polyester
C. perspex

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Question 23

Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene.

A. nitrile
B. silicone
C. neoprene
D. butyl

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Question 24

Caprolactum, a raw material for the manufacture of nylon-6, is produced from

A. phenol
B. naphthalene
C. benzene
D. pyridine

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Question 25

Which of the following is generally not used as eord for synthetic rubber tyre casing ?

A. Dacron
B. Nylon
C. Cellulose
D. None of these

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Question 26

Automobile steering wheels are normally made of

A. cellulose acetate
B. cellulose nitrate
D. high density polythene

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Question 27

SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at

A. 01:03
B. 03:01
C. 01:02
D. 02:01

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Question 28

Which of the following is a copolymer ?

B. Bakelite
C. Polythene
D. Teflon

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Question 29

The main use of butadiene is

A. as a plasticiser for unsaturated polyester.
B. in the manufacture of synthetic rubber.
C. as an anti-skimming agent in paint.
D. none of these.

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Question 30

Nitrile rubber is produced by the polymerisation of

A. acrylonitrile & butadiene.
B. acrylonitrile & styrene.
C. isobutylene & isoprene.
D. none of these.

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Question 31

Neoprene is chemically known as

A. polybutandiene
B. styrene butadiene rubber (SBR)
C. polyurethane
D. poly chloroprene

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Question 32

Transistor parts and refrigerator components are normally made of

A. polystyrene
B. polyester
C. high density polythene
D. polyurathane

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Question 33

Mastication of rubber means

A. its softening.
B. a treatment to retard its deterioration due to oxidation.
C. improving its curing rate.
D. depression of its freezing point.

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Question 34

Which of the following polymers belong to the class of formaldehyde resin ?

A. Melamine resins
B. Teflon
C. Dacron
D. None of these

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Question 35

Thiokol is nothing but

A. polysulphide rubber
B. polyamide fibre
C. engineering plastic
D. exponded polystyrene

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Question 36

Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its

A. elasticity
B. strength
C. plasticity
D. weathering characteristics

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Question 37

Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent.

A. 1-1000
B. 1000-1500
C. 1500-2000
D. 2000-2500

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Question 38

Nylon-6 is manufactured from

A. caprolactum.
B. adipic acid and hexamethylene diamine.
C. maleic anhydride and hexamethylene diamine.
D. sebasic acid and hexamethylene diamine.

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Question 39

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. chlorophrene
C. isoprene
D. none of these

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Question 40

Buna-S is also known as

A. teflon
D. polycrylates

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Question 41

Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to

A. protect rubber goods from attack by oxygen & ozone present in the atmosphere.
B. reduce its viscosity to permit easier processing.
C. reduce the time of vulcanisation and quantity of vulcanising agent.
D. increase its viscosity.

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Question 42

Visco-elastic behaviour exhibited by plastics is a __________ like behaviour.

A. solid
B. liquid
C. combination of solid & liquid
D. neither solid nor liquid

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Question 43

Which of the following low molecular weight (<104 ), soft & waxy polymer is used in chewing gum ?

A. Cellulose acetate
B. Polyvinyl acetate
C. Thiokol

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Question 44

__________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine.

A. Epoxy
B. Amino
C. Alkyd
D. Phenolic

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Question 45

Buna-S is a __________ material.

A. fibrous
B. plastic
C. resinous
D. rubbery

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Question 46

Plasticisers are added to synthetic plastics to

A. impart flexibility.
B. improve workability during fabrication.
C. develop new improved properties not present in the original resin.
D. all (a), (b) and (c).

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Question 47

Celluloid is

A. cellulose acetate
B. regenerated cellulose
C. cellulose nitrate
D. cellulose acetate butyrate

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Question 48

Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of

A. cold SBR
B. butyl rubber
C. Bunai N
D. Buna S

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Question 49

Density of high density polythene is about __________ gm/c.c.

A. 1.18
B. 1.05
C. 0.95
D. 0.99

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Question 50

Trade name of __________ is neoprene.

A. polychloroprene
B. polyisoprene
C. polytetraflouroethylene
D. poly vinyl acetate

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