Polymer Technology The inter particle forces between linear chains in nylon-66 are __________ bonds. Covalant Ionic Hydrogen None of these Covalant Ionic Hydrogen None of these 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. Polypropylene Acrylic Polyester Nylon 6:6 Polypropylene Acrylic Polyester Nylon 6:6 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer? Nylon-6 Polyester Bakelite (phenol formaldehyde) Polythene Nylon-6 Polyester Bakelite (phenol formaldehyde) Polythene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting polymers as compared to thermoplastic polymers None of these Have three dimensional structure Have linear structure Are formed by addition polymerisation None of these Have three dimensional structure Have linear structure Are formed by addition polymerisation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Dacron is a Condensation polymerisation product of hexamethylene diamine and adipic acid Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol Thermosetting material None of these Condensation polymerisation product of hexamethylene diamine and adipic acid Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol Thermosetting material None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex? Both A & B Potassium alum Ammonium alum Neither A nor B Both A & B Potassium alum Ammonium alum Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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