Polymer Technology Dacron (or terylene) fibres as compared to nylon fibres have All of these Poorer resistance to alkalis Better heat & acid resistant properties Poorer dyeability All of these Poorer resistance to alkalis Better heat & acid resistant properties Poorer dyeability ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids? Nucleic acids Proteins Cellulose Starch Nucleic acids Proteins Cellulose Starch ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is a copolymer. PVC Poly tetra flouro ethylene Nylon-66 Polyrophylene PVC Poly tetra flouro ethylene Nylon-66 Polyrophylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m². Which of the following polymers has the maximum film elongation (of the order of 100%) ? Teflon Cellulose acetate Polythene Water impermeable cellophane Teflon Cellulose acetate Polythene Water impermeable cellophane ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology 90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ °C. 500-600 -5 10-30 250-280 500-600 -5 10-30 250-280 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its Plasticity Strength Elasticity Weathering characteristics Plasticity Strength Elasticity Weathering characteristics ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS