Polymer Technology The rate controlling step in the manufacture of silicone rubber is the Condensation of siloxane to silicone None of these Initial hydrolysis of silicone monomer Polymer termination step Condensation of siloxane to silicone None of these Initial hydrolysis of silicone monomer Polymer termination step ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low density polythene as compared to high density polythene is More flexible Tougher Chemically inert Harder More flexible Tougher Chemically inert Harder ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butediene rubber) are 250°C and 10 kgf/cm² 50°C and 1 kgf/cm² 50°C and 3 - 4 kg/cm² 250°C and 1 kgf/cm² 250°C and 10 kgf/cm² 50°C and 1 kgf/cm² 50°C and 3 - 4 kg/cm² 250°C and 1 kgf/cm² ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically Polycarbonates Phenolic resins Polytetraflouroethylene(PTFE) Polymethyl methacrylate (PMMA) Polycarbonates Phenolic resins Polytetraflouroethylene(PTFE) Polymethyl methacrylate (PMMA) ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The main use of butadiene is In the manufacture of synthetic rubber As an anti-skimming agent in paint None of these As a plasticiser for unsaturated polyester In the manufacture of synthetic rubber As an anti-skimming agent in paint None of these As a plasticiser for unsaturated polyester 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. Polypropylene Polyester Nylon 6:6 Acrylic Polypropylene Polyester Nylon 6:6 Acrylic ANSWER DOWNLOAD EXAMIANS APP
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