0% 0 Polymer Technology Quiz 2 1 / 35 Teflon is___________? Phenol formaldehyde An inorganic polymer Polytetrafluroethylene (PTFE) A monomer 2 / 35 Polyvinyl alcohol is used as a_____? Textile fibre Cation/anion exchanger Water soluble adhesive Non-sticky coating on frying pans 3 / 35 Which of the following is an inorganic polymer ? Teflon Perspex Bakelite Silicones 4 / 35 Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are___________? 0?C and 3 kgf/cm2 ? 20?C and 1 kgf/cm2 5?C and 1 kgf/cm2 0?C and 1 kgf/cm2 5 / 35 Which of the following polymers belong to the class of formaldehyde resin ? Melamine resins Teflon Dacron None of these 6 / 35 Polythene is a/an_________? Addition polymerisation product Condensation polymerisation product None of these Thermosetting material 7 / 35 The synthetic fibres produced from ______ are known as rayon? Lignin Cellulose Polyamides Ethylene glycol 8 / 35 Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids ? Starch Nucleic acids Proteins Cellulose 9 / 35 Tyres are made by_____? Compression moulding Rotational moulding Injection moulding Extrusion 10 / 35 Transistor parts and refrigerator components are normally made of_______? Polyurethane Polystyrene High density polythene Polyester 11 / 35 Which of the following polymers is used for making a non stick coating on frying pans ? Bakelite Teflon Perspex PVC 12 / 35 Which of the following is the most important rubber compounding ingredient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness ? Phosphorous Rosin Carbon black Pine oil 13 / 35 Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are______? 50?C and 1 kgf/cm2 250?C and 1 kgf/cm2 250?C and 10 kgf/cm2 50?C and 3 ? 4 kg/cm2 14 / 35 The main use of butadiene is______? In the manufacture of synthetic rubber None of these As a plasticiser for unsaturated polyester As an anti-skimming agent in paint 15 / 35 Zeigler process_________? Uses no catalyst Produces low density polythene Produces high density polythene Employs very high pressure 16 / 35 Synthetic polymer produced by using terephthalic acid and ethylene glycol is __________? Polystyrene PVC Nylon-66 Terylene 17 / 35 Polyurethane cannot be used for making______? Adhesives Mattresses & foam Bottles Coating material 18 / 35 Vulcanisation of rubber decreases its___________? Tensile strength Resistance to organic solvents Working temperature range Tackiness 19 / 35 Which of the following types of polymers has the strongest inter particle forces ? Elastomers Thermoplastics Thermosetting polymers Fibres 20 / 35 Which of the following polymers has the tendency of decomposing before melting ? Nylon Polystyrene None of these PVC 21 / 35 SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at__________? 1:03 2:01 1:02 3:01 22 / 35 Styrene butadiene rubber (SBR) as compared to natural rubber has________? Poor tensile strength Greater amount of heat build up heavy loading All A., B. and C. Poorer resistance 23 / 35 The organic acid monomer in nylon-66 is ___________? Adipic acid Sebacic acid Terephthalic acid Benzoic acid 24 / 35 Thermoplastic resins usually______? Permanent setting resins Cannot be reclaimed from waste Remain hard as long as they are hot Less brittle than thermosetting resins 25 / 35 The conversion of caprolactam in the above case is about _____ percent? 90 50 25 70 26 / 35 Silicone resins, which are highly water repellent and has good heat resistance cannot be used_____? Hydraulic fluid for heat transfer Resin for lamination As room temperature adhesive As grease & lubricant 27 / 35 Viscosity of a polymer solution or melt __________? Decreases with increase in temperature Decreases with increase in molecular weight Does not vary with temperature rise Increases with increase in temperature 28 / 35 The rate controlling step in the manufacture of silicone rubber is the__________? Polymer termination step Initial hydrolysis of silicone monomer Condensation of siloxane to silicone None of these 29 / 35 Thermosetting polymers as compared to thermoplastic polymers_______? None of these Have linear structure Are formed by addition polymerisation Have three dimensional structure 30 / 35 The monomer of poly vinyl chloride (PVC) is___________? Chloroethane Ethylene dichloride Chloroform Ethyl chloride 31 / 35 The monomer for the production of neoprene rubber is__________? Acetylene Chloroprene Isoprene None of these 32 / 35 Which of the following is not a thermoplastic material ? PVC Polythene Polystyrene Epoxy polymer 33 / 35 Polypropylene compared to polythene is_____? Stronger Lighter All A., B. and C. Harder 34 / 35 Polystyrene is a _____ plastic at room temperature? Brittle Ductile None of these Malleable 35 / 35 Which of the following has the weakest intermolecular forces ? Polyisoprene Bakelite Polystyrene Nylon-66 Provide Your Information Your score is The average score is 0% LinkedIn Facebook Twitter 0% Restart quiz Send feedback Share on facebook Facebook Share on twitter Twitter Share on whatsapp WhatsApp PrevPolymer Technology Quiz 1 Process Control and Instrumentation Quiz 1Next
