Polymer Technology Density of low density polythene is about __________ gm/c.c. 0.91 0.38 0.56 0.81 0.91 0.38 0.56 0.81 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. Nylon 6:6 Acrylic Polyester Polypropylene Nylon 6:6 Acrylic Polyester Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Rayon is superior to cotton in making gauge for wound treatment, because rayon Does not stick to the wound unlike cotton Is a synthetic polymer Can absorb over 90% of its own weight of water Both B & C Does not stick to the wound unlike cotton Is a synthetic polymer Can absorb over 90% of its own weight of water Both B & C ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Diphenylamine is added to rubber to Valcanise it Protect it from deterioration on exposure to air Make it thermosetting Make it non-inflammable Valcanise it Protect it from deterioration on exposure to air Make it thermosetting Make it non-inflammable ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Elastomers are Having high flexural strength Thermosetting material Exemplified by protein derivatives Having very high tensile strength and heat resistance Having high flexural strength Thermosetting material Exemplified by protein derivatives Having very high tensile strength and heat resistance ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a condensation polymer? Polymethylmethacrylate (PMMA) Bakelite None of these Melamine polymer Polymethylmethacrylate (PMMA) Bakelite None of these Melamine polymer ANSWER DOWNLOAD EXAMIANS APP
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