Polymer Technology Plastic articles are normally produced by __________ moulding. Green sand Injection Dry sand Shell Green sand Injection Dry sand Shell ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The monomer of natural rubber is Isoprene Both B and C DMT 2 methyl-1-propene Isoprene Both B and C DMT 2 methyl-1-propene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In condensation polymerisation as compared to addition polymerisation No co-product is lost The monomers are unsaturated compounds The monomers contain two functional groups Generally only one monomer is involved No co-product is lost The monomers are unsaturated compounds The monomers contain two functional groups Generally only one monomer is involved ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres. Polyester Nylon 6:6 Polypropylene Acrylic Polyester Nylon 6:6 Polypropylene Acrylic ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene. Butyl Neoprene Silicone Nitrile Butyl Neoprene Silicone Nitrile 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? Thiokol Magnesium Carbon Alkylated diphenyl amine Thiokol Magnesium Carbon Alkylated diphenyl amine ANSWER DOWNLOAD EXAMIANS APP
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