Polymer Technology Polycondensation reaction of polymerisation Produces epoxy polymers Does not produce linear polymers Does not need any catalyst Produces only thermoplastic material Produces epoxy polymers Does not produce linear polymers Does not need any catalyst Produces only thermoplastic material ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher Melting point Densities Hardness, rigidity & brittleness Tensile strength Melting point Densities Hardness, rigidity & brittleness Tensile strength ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene. Silicone Butyl Nitrile Neoprene Silicone Butyl Nitrile Neoprene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermocole is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten Either B or C Polyurathane Saturated polyester Polystyrene Either B or C Polyurathane Saturated polyester Polystyrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser? Ethylene glycol Tricresyl phosphate Stearic acid estors Esters of phthalic acid Ethylene glycol Tricresyl phosphate Stearic acid estors Esters of phthalic acid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature. Polypropylene Polyacrylonitrile Polyester Nylon Polypropylene Polyacrylonitrile Polyester Nylon ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS