New Polymer Technology MCQs – Latest Chemical Engineering MCQs
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Latest Chemical Engineering MCQs
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Latest Polymer Technology Mcqs
The most occurred mcqs of Polymer Technology in past papers. Past papers of Polymer Technology Mcqs. Past papers of Polymer Technology Mcqs . Mcqs are the necessary part of any competitive / job related exams. The Mcqs having specific numbers in any written test. It is therefore everyone have to learn / remember the related Polymer Technology Mcqs. The Important series of Polymer Technology Mcqs are given below:
Polyurethane cannot be used for making____________________?
A. Coating material
B. Mattresses & foam
C. Adhesives
D. Bottles
Which of the following is an inorganic polymer ?
A. Perspex
B. Teflon
C. Silicones
D. Bakelite
Epoxy resin is a polymer containing two or more groups of the bellow fig. is called epoxide group or ethoxyline group. It is a _______________?
A. Polyamide & an elastomer
B. Surface coating agent
C. Good adhesive
D. Both B. and C.
Which of the following has the weakest intermolecular forces ?
A. Polyisoprene
B. Polystyrene
C. Nylon-66
D. Bakelite
Transistor parts and refrigerator components are normally made of_____________________?
A. Polystyrene
B. High density polythene
C. Polyester
D. Polyurethane
Silicone resins, which are highly water repellent and has good heat resistance cannot be used___________________?
A. As room temperature adhesive
B. Hydraulic fluid for heat transfer
C. As grease & lubricant
D. Resin for lamination
Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its_________________?
A. Strength
B. Elasticity
C. Plasticity
D. Weathering characteristics
Cation exchange resins used in water treatment is made from _____________ resin?
A. Urea formaldehyde
B. Amino
C. Epoxy
D. Phenolic
Celluloid is__________________?
A. Regenerated cellulose
B. Cellulose acetate
C. Cellulose nitrate
D. Cellulose acetate butyrate
Tyres are made by___________________?
A. Extrusion
B. Injection moulding
C. Rotational moulding
D. Compression moulding
Automobile steering wheels are normally made of__________________?
A. Cellulose acetate
B. PVC
C. Cellulose nitrate
D. High density polythene
In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for _______________ fibres?
A. Rayon
B. PVC
C. Polythene
D. Polyvinyl acetate
The main use of butadiene is____________________?
A. As an anti-skimming agent in paint
B. In the manufacture of synthetic rubber
C. As a plasticiser for unsaturated polyester
D. None of these
Teflon is__________________?
A. An inorganic polymer
B. Phenol formaldehyde
C. Polytetrafluroethylene (PTFE)
D. A monomer
Orlan fibre which is used as a wool substitute is __________________?
A. A natural polymeric fibre
B. An amorphous polymer
C. Polyacrylonitrile
D. Poly-methyl-methacrylate (PMMA)
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. Isoprene
B. Chloroprene
C. Chloroethane
D. None of these
Zeigler process________________?
A. Produces high density polythene
B. Produces low density polythene
C. Uses no catalyst
D. Employs very high pressure
Polypropylene compared to polythene is___________________?
A. Stronger
B. Harder
C. Lighter
D. All A., B. and C.
Nylon-6 as compared to nylon-66 is_________________?
A. More abrasion resistant
B. Harder
C. Having higher melting point
D. None of these
Petroleum Refinery Engineering Mcqs
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. Potassium alum
B. Ammonium alum
C. Both A. & B.
D. Neither A. nor B.
Which of the following types of polymers has the strongest inter particle forces ?
A. Fibres
B. Elastomers
C. Thermoplastics
D. Thermosetting polymers
Mastication of rubber means_______________?
A. Its softening
B. Improving its curing rate
C. A treatment to retard its deterioration due to oxidation
D. Depression of its freezing point
Polythene is a/an________________?
A. Addition polymerisation product
B. Thermosetting material
C. Condensation polymerisation product
D. None of these
Neoprene is the trade name of________________?
A. Phenol formaldehyde
B. Polyurethane
C. Polychlorophrene
D. Styrene butadiene rubber (SBR)
____________ polymer is used for making unbreakable crockery?
A. Addition
B. Melamine
C. Thermoplastic
D. None of these
The synthetic fibres produced from _____________ are known as rayon?
A. Polyamides
B. Cellulose
C. Lignin
D. Ethylene glycol
Styrene butadiene rubber (SBR) as compared to natural rubber has_______________?
A. Poorer resistance
B. Poor tensile strength
C. Greater amount of heat build up heavy loading
D. All A., B. and C.
The conversion of caprolactam in the above case is about ____________ percent?
A. 25
B. 70
C. 50
D. 90
Caprolactam, a raw material for the manufacture of nylon-6, is produced from_______________?
A. Naphthalene
B. Phenol
C. Benzene
D. Pyridine
Polyvinyl alcohol is used as a___________________?
A. Textile fibre
B. Water soluble adhesive
C. Cation/anion exchanger
D. Non-sticky coating on frying pans
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. Polythene
C. Polyester
D. Nylon-6
Molecular weights of plastics ranges from_______________?
A. 5000 to 1000
B. 1000 to 5000
C. 20000 to 25000
D. 109 to 1011
Poly-methyl-methacrylate (PMMA) is known as_______________?
A. Teflon
B. Bakelite
C. Perspex
D. Nylon-6
A copolymer of vinyl and vinylidene chloride is called_____________________?
A. Orlon
B. Treylene
C. Saran
D. Dacron
SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at_________________?
A. 1: 3
B. 1 : 2
C. 3 : 1
D. 2 : 1
Pick out the wrong statement regarding the solubility characteristics of high polymers?
A. Greater the degree of cross-linking in the polymer, lesser is its solubility
B. Swelling tendency or solubility of polymers in a particular solvent decreases with increase in molecular weight of the solvent
C. Polymers having more aliphatic character are more soluble in aliphatic solvents, while those polymers having more aromatic character are more soluble in aromatic solvents
D. High molecular weight polymers on dissolving gives solution of very low viscosity
Fuels And Combustion Mcqs
Pick out the wrong statement ?
A. One important copolymer of styrene is SBR, which is widely used in the manufacture of automobile tyres
B. For the manufacture of styrene, the major raw materials are benzene and ethylene
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
Polystyrene is a ____________ plastic at room temperature?
A. Malleable
B. Brittle
C. Ductile
D. None of these
Condensation polymerisation of _____________ produces Bakelite?
A. Phenol & acetaldehyde
B. Phenol & formaldehyde
C. Propylene
D. Urea & formaldehyde
______________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine?
A. Alkyd
B. Amino
C. Epoxy
D. Phenolic
Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids ?
A. Cellulose
B. Starch
C. Proteins
D. Nucleic acids
Buna-S is a _______________ material?
A. Plastic
B. Fibrous
C. Resinous
D. Rubbery
_______________ practically possess no elasticity?
A. Vulcanite or ebonite
B. Polysulphide rubber
C. Spandex fibre
D. Epoxy resin
Low pressure Zeigler process of polythene manufacture____________________?
A. Produces very low density polythene
B. Achieves an yield of 95-98% based on ethylene
C. Employs a pressure of 30 kgf/cm2
D. Does not use any catalyst for polymerisation
Cross linked polymers formed from bi-and trifunctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer ______________ properties?
A. Thermosetting
B. Thermoplastic
C. Elastometric
D. Brittleness
Thermoplastic resins usually____________________?
A. Cannot be reclaimed from waste
B. Remain hard as long as they are hot
C. Permanent setting resins
D. Less brittle than thermosetting resins
Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from ______________ resins?
A. Phenol formaldehyde
B. Epoxy
C. Urea formaldehyde
D. Melamine formaldehyde
Main constituent of cotton fiber is __________________?
A. Starch
B. Cellulose
C. Lignin
D. Gelatine
Glyptal used in the manufacture of paints & lacquers is a _____________ polymer?
A. Polystyrene
B. Polyamide
C. Polyester
D. Polyacrylonitrile
Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are____________________?
A. 50°C and 3 – 4 kg/cm2
B. 250°C and 10 kgf/cm2
C. 50°C and 1 kgf/cm2
D. 250°C and 1 kgf/cm2
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. Thiokol
B. Alkylated diphenyl amine
C. Carbon
D. Magnesium
Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styreneacrylonitrile copolymer with butadiene based elastomer, is a/an__________________?
A. Thermosetting polymer
B. Engineering plastic
C. Rigid foam
D. Spongy rubber
Perspex can be used as a substitute of glass. Its monomer is__________________?
A. Methyl methacrylate
B. Butadiene
C. DMT
D. Tetrafluoroethylene
Condensation polymerisation of formaldehyde with _____________ does not produce phenolic resin?
A. Phenol
B. Resorcinol
C. Para-cresol
D. Melamine
Mass Transfer Mcqs
The monomer for the production of neoprene rubber is_________________?
A. Isoprene
B. Chloroprene
C. Acetylene
D. None of these
Which of the following polymers belong to the class of formaldehyde resin ?
A. Melamine resins
B. Dacron
C. Teflon
D. None of these
Epoxy resins (i.e., epoxide polymers) ?
A. Are cross-linked polymers only
B. Contain an epoxy group (fig bellow) at the ends of the polymer
C. Are made by addition polymerisation reaction only
D. Use emulsion polymerisation methods
Nylon-6 is manufactured from _______________?
A. Caprolactam
B. Maleic anhydride and Hexamethylenediamine
C. Adipic acid and Hexamethylenediamine
D. Sebacic acid and Hexamethylenediamine
Identify the group in which all the polymers mentioned can be used to make fibres ?
A. Cellulose derivatives, Polyamides, Polyurethane
B. Cellulose derivatives, Polyisoprene, Polyethylene
C. Butadiene copolymers, Polyamides, Urea-formaldehyde
D. Polypropylene, Poly vinyl chloride, Silicon
Nylon-6 as compared to nylon 66 has lower ?
A. Abrasion resistance
B. Adhesion to rubber
C. Thermal stability
D. Hardness
Which of the following is not a thermoplastic material ?
A. Epoxy polymer
B. Polystyrene
C. PVC
D. Polythene
Addition polymerisation is not involved in the manufacture of_______________?
A. Poly vinyl chloride
B. Low density polythene
C. Polystyrene
D. Polyhexamethylene adipamide
Amino resins are used in paper treatment to improve its__________________?
A. Folding endurance
B. Wet tear and bursting strength
C. Wet rub resistance
D. All A., B. & C.
Addition of stabiliser during PVC manufacture is done to________________?
A. Improve its elasticity
B. Improve its impact strength
C. Reduce the melt viscosity & glass transition temperature
D. Prevent its thermal degradation
______________are produced by reacting polybasic acid (e.g. Phthalic anhydride) with polyhydric alcohol (e.g., glycerol) ?
A. Saturated polyester
B. Alkyd resins
C. Unsaturated polyester
D. Amino resins
Maximum consumption of polymers is in___________________?
A. Toys making
B. Electrical insulation
C. Coating and films
D. Packaging
A copolymer is formed by the combination of two or more monomer molecules_________________?
A. In a chain without the elimination of water
B. Of the same monomer by elimination of small molecules of water
C. With the elimination of small amount of water
D. None of these
Phosphates (e.g., tricresyl, tributyl, tetrabutyl, triphenyl etc.) are added to polymers to act as __________________?
A. Anti-shrinkage agents
B. Hardeners
C. Plasticisers
D. Transparency improver
The rate controlling step in the manufacture of silicone rubber is the_________________?
A. Condensation of siloxane to silicone
B. Polymer termination step
C. Initial hydrolysis of silicone monomer
D. None of these
Viscosity of a polymer solution or melt _________________?
A. Decreases with increase in temperature
B. Decreases with increase in molecular weight
C. Increases with increase in temperature
D. Does not vary with temperature rise