Polymer Technology Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically Polymethyl methacrylate (PMMA) Polycarbonates Phenolic resins Polytetraflouroethylene(PTFE) Polymethyl methacrylate (PMMA) Polycarbonates Phenolic resins Polytetraflouroethylene(PTFE) ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of __________ produces bakelite. Phenol & acetaldehyde Propylene Phenol & formaldehyde Urea & formaldehyde Phenol & acetaldehyde Propylene Phenol & formaldehyde Urea & formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine. Epoxy Alkyd Amino Phenolic Epoxy Alkyd Amino Phenolic ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Rayon is superior to cotton in making gauge for wound treatment, because rayon Does not stick to the wound unlike cotton Can absorb over 90% of its own weight of water Is a synthetic polymer Both B & C Does not stick to the wound unlike cotton Can absorb over 90% of its own weight of water Is a synthetic polymer Both B & C ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymethyl methacrylate, which is an acrylic resin, is also called Plexiglass or lucite Teflon Thiokol Dacron Plexiglass or lucite Teflon Thiokol Dacron ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Dacron (or terylene) fibres as compared to nylon fibres have All of these Poorer dyeability Better heat & acid resistant properties Poorer resistance to alkalis All of these Poorer dyeability Better heat & acid resistant properties Poorer resistance to alkalis ANSWER DOWNLOAD EXAMIANS APP
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