Polymer Technology In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher Tensile strength Melting point Hardness, rigidity & brittleness Densities Tensile strength Melting point Hardness, rigidity & brittleness Densities 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. Acrylic Nylon 6:6 Polyester Polypropylene Acrylic Nylon 6:6 Polyester Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is an inorganic polymer? Bakelite Perspex Silicones Teflon Bakelite Perspex Silicones Teflon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting polymers as compared to thermoplastic polymers Have linear structure Are formed by addition polymerisation None of these Have three dimensional structure Have linear structure Are formed by addition polymerisation None of these Have three dimensional structure ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are added to synthetic plastics to Improve workability during fabrication Impart flexibility All of these Develop new improved properties not present in the original resin Improve workability during fabrication Impart flexibility All of these Develop new improved properties not present in the original resin ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is not a condensation polymer. Polystyrene Nylon-66 Teflon Dacron Polystyrene Nylon-66 Teflon Dacron ANSWER DOWNLOAD EXAMIANS APP
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