Description : Poly Vinyl Chloride (P.V.C.) is a __________ material. (A) Thermosetting (B) Thermoplastic (C) Fibrous (D) Chemically active
Last Answer : (B) Thermoplastic
Description : Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800? (A) 50000 (B) 51600 (C) 49200 (D) 50800
Last Answer : (A) 50000
Description : The monomer of poly vinyl chloride (PVC) is (A) Chloroethane (B) Ethylene dichloride (C) Ethyl chloride (D) Chloroform
Last Answer : (A) Chloroethane
Description : . Polyvinyl chloride (PVC) is (A) A thermosetting material (B) A condensation polymerisation product (C) Made by employing emulsion polymerisation (D) None of these
Last Answer : (C) Made by employing emulsion polymerisation
Description : __________ is produced using Polycondensation reaction. (A) Polythene (B) Phenol formaldehyde (C) Poly vinyl chloride (D) None of these
Last Answer : (B) Phenol formaldehyde
Description : __________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate. (A) Fibrous (B) Leathery (C) Rubbery (D) Hard
Last Answer : (B) Leathery
Description : Polyvinyl chloride (PVC) (A) Is produced by Polycondensation reaction (B) Uses either emulsion or suspension polymerisation methods (C) Can be made thermosetting by adding a plasticiser (D) Softening temperature is 200°C
Last Answer : (B) Uses either emulsion or suspension polymerisation methods
Description : Polymethyl methacrylate (PMMA) which is also known as Perspex and is produced by bulk polymerisation of methyl methacrylate is not a __________ polymer. (A) Thermoplastic (B) Thermosetting (C) Linear (D) Glass like transparent
Last Answer : (B) Thermosetting
Description : 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) Thermoplastic (B) Thermosetting (C) Elastometric (D) Brittleness
Last Answer : (C) Elastometric
Description : Addition polymerisation is not involved in the manufacture of (A) Low density polythene (B) Poly vinyl chloride (C) Polystyrene (D) Polyhexamethylene adipamide
Last Answer : (D) Polyhexamethylene adipamide
Description : Identify the group in which all the polymers mentioned can be used to make fibres. (A) Butadiene copolymers, Polyamides, Urea-formaldehyde (B) Cellulose derivatives, Polyisoprene, Polyethylene (C) Cellulose derivatives, Polyamides, Polyurethane (D) Polypropylene, Poly vinyl chloride, Silicon
Last Answer : (B) Cellulose derivatives, Polyisoprene, Polyethylene
Description : Which of the following is produced by condensation polymerisation? (A) Bakelite (B) Polythene (C) Poly vinyl chloride (D) Polystyrene
Last Answer : (A) Bakelite
Description : Which of the following is not a thermoplastic material? (A) Epoxy polymer (B) PVC (C) Polystyrene (D) Polythene
Last Answer : (A) Epoxy polymer
Description : Bakelite is chemically known as (A) Polyvinyl chloride (PVC) (B) Polybutadiene (C) Phenol formaldehyde (D) Polyurethane
Last Answer : (C) Phenol formaldehyde
Description : __________ is a thermosetting plastic. (A) PVC (B) Polythene (C) Bakelite (D) Polystyrene
Last Answer : (C) Bakelite
Description : PVC is formed by polymerization of - (1) Styrene (2) Acetylene (3) Propene (4) Vinyl Chloride
Last Answer : (4) Vinyl Chloride Explanation: Polyvinyl chloride is produced by polymerization of the vinyl chloride monomer (VCM). About 80% of production involves suspension polymerization.
Description : PVC is obtained by the polymerisation of – (1) Propane (2) Vinyl chloride (3) Styrene (4) Acetylene
Last Answer : (2) Vinyl chloride Explanation: Polyvinyl chloride is produced by polymerization of the monomer vinyl chloride (17CM). Polyvinyl chloride, commonly abbreviated PVC, is the third-most widely produced ... it is cheaper and stronger than more traditional alternatives such as copper or ductile iron.
Description : PVC stands for (A) Plastic very compact (B) Polythene vinyl chloride (C) Polythene vinyl carbon (D) Polythene vanadium carbide
Last Answer : Answer: Option B
Description : PVC is obtained by the polymerisation of (1) Propane (2) Vinyl chloride (3) Styrene (4) Acetylene
Last Answer : Vinyl chloride
Description : Cross linked polymers are (A) Thermoplastic (B) Thermosetting (C) Either (A) or (B) (D) Fibres only
Description : Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their (A) Molecular sizes (B) Magnitude of intermolecular forces (C) Resistance to heat (D) Polymerisation mechanism
Last Answer : (B) Magnitude of intermolecular forces
Description : Thermosetting resins/polymers as compared to thermoplastic ones are (A) Soluble in all organic solvents (B) More brittle (C) Formed by addition polymerisation only (D) Easily reshaped & reused
Last Answer : (B) More brittle
Description : Linear polymers are normally (A) Thermosetting (B) Thermoplastic (C) Elastometric (D) Having extremely high softening poin
Description : All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it cannot be used for the production of plastic (A) Filaments (B) Pipes (C) Buckets (D) Tubings
Last Answer : (C) Buckets
Description : Thermosetting polymers as compared to thermoplastic polymers (A) Are formed by addition polymerisation (B) Have three dimensional structure (C) Have linear structure (D) None of these
Last Answer : (B) Have three dimensional structure
Description : Pick out the wrong statement. (A) Linear polymers are formed from bifunctional groups only and are normally thermoplastic (B) Cross-linked branched chain polymers are either elastometric or ... (D) Dibasic acids reacts with dihydric alcohols to give polyesters using addition polymerisation reaction
Last Answer : D) Dibasic acids reacts with dihydric alcohols to give polyesters using addition polymerisation reaction
Description : Thermoplastic resins usually (A) Remain hard as long as they are hot (B) Cannot be reclaimed from waste (C) Permanent setting resins (D) Less brittle than thermosetting resins
Last Answer : (D) Less brittle than thermosetting resins
Description : While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous or crystalline. The crystalline polymers are characterised by the (A) Low impact strength (B) High flexibility (C) Better finish and surface appearance (D) High plastic deformation
Last Answer : A) Low impact strength
Description : Fibre reinforced plastic (FRP) are (A) Made of glass fibre and thermoplastic resins (B) Anisotropic (C) Made of thermosetting resin and glass fibre (D) Both 'b' & 'c'
Last Answer : Option D
Description : Differentiate between Thermoplastic and Thermosetting polymers.
Last Answer : Differentiate between Thermosetting and Thermoplastic polymers: Thermosetting Thermoplastic Polymers which once mould /shaped do not soften when heated and thus cannot be reshaped Polymers whose ... tri, tetra or poly functional. Monomer used in this polymer bi functional.
Description : Compare between thermoplastic and thermosetting plastic.
Last Answer : Thermoplastics Thermosetting They can be repeated softened by heat and hardened on cooling Once hardened and set they do not softened with application of heat They are formed by ... to soft under heat They can be used at comparatively higher temperature without damage.
Description : Vinyl flooring is done using __________ sheets. (A) Polypropylene (B) PVC (C) Polythene (D) Polyvinyl acetate
Last Answer : (B) PVC
Description : __________ is a thermosetting plastic. (A) Polyvinyl chloride (B) Polythene (C) Bakelite (D) Teflon
Description : Neoprene is chemically known as (A) Polybutadiene (B) Styrene butadiene rubber (SBR) (C) Polyurethane (D) Poly chloroprene
Last Answer : (D) Poly chloroprene
Description : Sodium tri poly phosphate (STPP) is chemically represented as (A) Na5P3O10 (B) Na4P3O8 (C) Na3P4O6 (D) Na2PO4
Last Answer : (A) Na5P3O10
Description : Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid. (A) Phthalic anhydride (B) Vinyl chloride (C) Maleic anhydride (D) Dacron
Last Answer : (B) Vinyl chloride
Description : Aqueous nitric acid is stored in __________ vessel. (A) Plain carbon steel (B) Stainless steel (C) Cast iron (D) Thermosetting plastic material
Last Answer : (C) Cast iron
Description : Vinyl & PVC Fence Installation?
Last Answer : form_title=Vinyl & PVC Fence Installation form_header=12043 Please specify the nature of the project.*= () Replace existing fence () Repair existing fence () Install a new fence () Other How tall is the fence ... = {Select One,Less than 100 feet,100 - 200 feet,201 - 300 feet,Over 300 feet,Unsure}
Description : Buna-S is a __________ material. (A) Fibrous (B) Plastic (C) Resinous (D) Rubbery
Last Answer : (D) Rubbery
Description : . Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent. (A) 75 (B) < 10 (C) > 30 (D) 50
Last Answer : (B) < 10
Description : Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent. (A) 10 (B) 50 (C) 80 (D) 95
Last Answer : (B) 50
Description : The synthetic plastic used for making insulation cover in electrical wires is ________. a ) Bakelite b)melamine c)Polyvinyl Chloride d)Poly styrene
Last Answer : c)Polyvinyl Chloride
Description : Reactor used in the production of polyvinyl chloride (PVC) is made of (A) Nickel or glass lined steel (B) Aluminium (C) Tantalum (D) Lead
Last Answer : (A) Nickel or glass lined steel
Description : Polycondensation reaction of polymerisation (A) Does not produce linear polymers (B) Produces only thermoplastic material (C) Produces epoxy polymers (D) Does not need any catalyst
Last Answer : (C) Produces epoxy polymers
Description : Silicone is a/an (A) Monomer (B) Inorganic polymer (C) Thermoplastic material (D) A natural polymer
Last Answer : (B) Inorganic polymer
Description : Polystyrene is a light, transparent, thermoplastic material used for making (A) Toys and combs (B) Packaging bags (C) Non-sticking utensils (D) Electrical insulation
Last Answer : (A) Toys and combs
Description : Pick out the wrong statement. (A) Pure rubber is as useless as pure gold as a material of construction (B) Thermal conductivity of aluminium is higher than that of copper; henceit is ... has poor weldability (D) Reinforced plastics are made from both thermoplastic as well as thermosetting plastics
Last Answer : (B) Thermal conductivity of aluminium is higher than that of copper; henceit is increasingly used for utensil making
Description : Gypsum is chemically (A) Calcium chloride (B) Potassium sulphate (C) Sodium sulphate (D) Calcium sulphate
Last Answer : (D) Calcium sulphate
Description : Grignard reagent is chemically known as (A) Ethyl magnesium chloride (B) Methyl magnesium chloride (C) Dichlorophenol (D) Monochloroacetic acid
Last Answer : (A) Ethyl magnesium chloride