Polymer Technology Valcunisation of rubber decreases its Tackiness Resistance to organic solvents Tensile strength Working temperature range Tackiness Resistance to organic solvents Tensile strength Working temperature range ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers belong to the class of formaldehyde resin? Melamine resins Teflon Dacron None of these Melamine resins Teflon Dacron None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Buna-S is a __________ material. Resinous Fibrous Rubbery Plastic Resinous Fibrous Rubbery Plastic ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermocole (expanded polystyrene) is not used for Packing of delicate electronic gadgets Low temperature thermal insulation as in refrigerator and air conditioners High temperature thermal insulation in furnaces Accoustic control and ceiling for building Packing of delicate electronic gadgets Low temperature thermal insulation as in refrigerator and air conditioners High temperature thermal insulation in furnaces Accoustic control and ceiling for building ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following types of polymers has the strongest inter particle forces? Thermosetting polymers Fibres Thermoplastics Elastomers Thermosetting polymers Fibres Thermoplastics Elastomers ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to Reduce the time of vulcanisation and quantity of vulcanising agent Reduce its viscosity to permit easier processing Protect rubber goods from attack by oxygen & ozone present in the atmosphere Increase its viscosity Reduce the time of vulcanisation and quantity of vulcanising agent Reduce its viscosity to permit easier processing Protect rubber goods from attack by oxygen & ozone present in the atmosphere Increase its viscosity ANSWER DOWNLOAD EXAMIANS APP
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