Polymer Technology Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its Weathering characteristics Elasticity Strength Plasticity Weathering characteristics Elasticity Strength Plasticity ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene butadiene rubber (SBR) as compared to natural rubber has Poor tensile strength Greater amount of heat build up heavy loading Poorer resistance All of these Poor tensile strength Greater amount of heat build up heavy loading Poorer resistance All of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer? PMMA Polycaprolactum Buna-S PTFE PMMA Polycaprolactum Buna-S PTFE ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Properties of a polymer is affected by the Intermolecular forces All of these Branching & cross-linking Chain length Intermolecular forces All of these Branching & cross-linking Chain length ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Catalyst used in the production of high density polythene by low pressure Ziegler process is Nickel Platinum Aluminium triethyl activated with TiCl₄ Molybdenum Nickel Platinum Aluminium triethyl activated with TiCl₄ Molybdenum ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically Phenolic resins Polytetraflouroethylene(PTFE) Polymethyl methacrylate (PMMA) Polycarbonates Phenolic resins Polytetraflouroethylene(PTFE) Polymethyl methacrylate (PMMA) Polycarbonates ANSWER DOWNLOAD EXAMIANS APP
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