Polymer Technology Which of the following is stretched into fibres? Unsaturated polyester Saturated polyester Isoprene Bakelite Unsaturated polyester Saturated polyester Isoprene Bakelite ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Linear polymers are normally Thermosetting Elastometric Thermosplastic Having extremely high softening point Thermosetting Elastometric Thermosplastic Having extremely high softening point ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Identify the group in which all the polymers mentioned can be used to make fibres. Cellulose derivatives, Polyisoprene, Polyethylene Butadiene copolymers, Polyamides, Urea aldehyde Cellulose derivatives, Polyamides, Polyurathane Polypropylene, Poly vinyl chloride, Silicon Cellulose derivatives, Polyisoprene, Polyethylene Butadiene copolymers, Polyamides, Urea aldehyde Cellulose derivatives, Polyamides, Polyurathane Polypropylene, Poly vinyl chloride, Silicon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Rayon is superior to cotton in making gauge for wound treatment, because rayon Both B & C Is a synthetic polymer Does not stick to the wound unlike cotton Can absorb over 90% of its own weight of water Both B & C Is a synthetic polymer Does not stick to the wound unlike cotton Can absorb over 90% of its own weight of water ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Automobile steering wheels are normally made of PVC High density polythene Cellulose acetate Cellulose nitrate PVC High density polythene Cellulose acetate Cellulose nitrate ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to Reduce its viscosity to permit easier processing Protect rubber goods from attack by oxygen & ozone present in the atmosphere Reduce the time of vulcanisation and quantity of vulcanising agent Increase its viscosity Reduce its viscosity to permit easier processing Protect rubber goods from attack by oxygen & ozone present in the atmosphere Reduce the time of vulcanisation and quantity of vulcanising agent Increase its viscosity ANSWER DOWNLOAD EXAMIANS APP
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