Polymer Technology Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins. Phenol formaldehyde Urea formaldehyde Melamine formaldehyde Epoxy Phenol formaldehyde Urea formaldehyde Melamine formaldehyde Epoxy ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Viscosity of a polymer solution or melt Decreases with increase in molecular weight Does not vary with temperature rise Increases with increase in temperature Decreases with increase in temperature Decreases with increase in molecular weight Does not vary with temperature rise Increases with increase in temperature Decreases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Vulcanisation of raw rubber makes it Soft Less elastic Plastic Tacky Soft Less elastic Plastic Tacky ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Catalyst used in the production of high density polythene by low pressure Ziegler process is Aluminium triethyl activated with TiCl₄ Platinum Nickel Molybdenum Aluminium triethyl activated with TiCl₄ Platinum Nickel Molybdenum ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a polyolefin? Polystyrene None of these Polypropylene Neoprene Polystyrene None of these Polypropylene Neoprene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butediene rubber) are 250°C and 1 kgf/cm² 50°C and 3 - 4 kg/cm² 50°C and 1 kgf/cm² 250°C and 10 kgf/cm² 250°C and 1 kgf/cm² 50°C and 3 - 4 kg/cm² 50°C and 1 kgf/cm² 250°C and 10 kgf/cm² ANSWER DOWNLOAD EXAMIANS APP
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