Polymer Technology __________ is normally used for the manufacture of refrigerator components and transistor parts. Polyproylene Polyurathene Polystyrene Polyester Polyproylene Polyurathene Polystyrene Polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin. Melamine Para-cresol Resorcinol Phenol Melamine Para-cresol Resorcinol Phenol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers does not belong to the class of polyacrylate polymer? PMMA None of these Polyacrylonitrile Polyethyl acrylate PMMA None of these Polyacrylonitrile Polyethyl acrylate ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are added to synthetic plastics to Impart flexibility All of these Develop new improved properties not present in the original resin Improve workability during fabrication Impart flexibility All of these Develop new improved properties not present in the original resin Improve workability during fabrication ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals. Organic peroxides Sulphuric acid None of these Hydroflouric acid Organic peroxides Sulphuric acid None of these Hydroflouric acid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Flexible foam (for mattresses) are usually made of Silicone rubber Polyamides PVC Polyurethanes Silicone rubber Polyamides PVC Polyurethanes ANSWER DOWNLOAD EXAMIANS APP
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