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 Thiokol Alkylated diphenyl amine Magnesium Carbon Thiokol Alkylated diphenyl amine Magnesium ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their Molecular sizes Resistance to heat Polymerisation mechanism Magnitude of intermolecular forces Molecular sizes Resistance to heat Polymerisation mechanism Magnitude of intermolecular forces ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Branched chair polymers as compared to linear polymers have Higher melting point Higher tensile strength None of these Lower density Higher melting point Higher tensile strength None of these Lower density ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Density of low density polythene is about __________ gm/c.c. 0.91 0.56 0.81 0.38 0.91 0.56 0.81 0.38 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosplastic materials Are solvent insoluble Do not soften on application of heat Are heavily branched molecules None of these Are solvent insoluble Do not soften on application of heat Are heavily branched molecules None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Orlan fibre which is used as a wool sub stitute is Polyacrylonitrile An amorphous polymer Polymethylmethacrylate (PMMA) A natural polymeric fibre Polyacrylonitrile An amorphous polymer Polymethylmethacrylate (PMMA) A natural polymeric fibre ANSWER DOWNLOAD EXAMIANS APP
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