Polymer Technology Poly Vinyl chloride (PVC) is a __________ material. Thermosetting Fibrous Thermoplastic Chemically active Thermosetting Fibrous Thermoplastic Chemically active ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Catalyst used in the production of high density polythene by low pressure Ziegler process is Platinum Molybdenum Nickel Aluminium triethyl activated with TiCl₄ Platinum Molybdenum Nickel Aluminium triethyl activated with TiCl₄ ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber? Carbon Magnesium Thiokol Alkylated diphenyl amine Carbon Magnesium Thiokol Alkylated diphenyl amine ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is Polyvinyl butyral Polyvinyl alcohol PVC Polyvinyl acetale Polyvinyl butyral Polyvinyl alcohol PVC Polyvinyl acetale ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition of stabiliser during PVC manufacture is done to Reduce the melt viscosity & glass transition temperature Improve its elasticity Improve its impact strength Prevent its thermal degradation Reduce the melt viscosity & glass transition temperature Improve its elasticity Improve its impact strength Prevent its thermal degradation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology 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? 49200 50000 50800 51600 49200 50000 50800 51600 ANSWER DOWNLOAD EXAMIANS APP
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