Which of the following is not a natural fiber ?
Which of the following is not a natural fiber ?
A. Silk
B. Viscose rayon
C. Wool
D. Cotton
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Thermoplastic resins usually____________________?
Thermoplastic resins usually____________________?A. Remain hard as long as they are hot
B. Cannot be reclaimed from waste
C. Permanent setting resins
D. Less brittle than thermosetting resinsElastomers are__________________?
Elastomers are__________________?A. Thermosetting material
B. Exemplified by protein derivatives
C. Having high flexural strength
D. Having very high tensile strength and heat resistanceMost of the plastics are safe to be used upto a maximum temperature of ______________ °C?
Most of the plastics are safe to be used upto a maximum temperature of ______________ °C?A. 100
B. 150
C. 350
D. 450Glyptal used in the manufacture of paints & lacquers is a __________ polymer.
Question: Glyptal used in the manufacture of paints & lacquers is a __________ polymer.
[A].polyamide [B].
polystyrene [C].
polyester [D].
polyacrylonitrile Answer: Option C
Explanation:
No answer description available for this question.
Nylon-66 is manufactured from ____________________?
Nylon-66 is manufactured from ____________________?A. Adipic acid and Hexamethylene diamine
B. Caprolactam
C. Maleic anhydride and Hexamethylene diamine
D. Dimethyl terephthalate (DMT) and ethylene glycolPolypropylene is preferred to polythene, because the former is
Question: Polypropylene is preferred to polythene, because the former is
[A].non-inflammable [B].
harder [C].
stronger [D].
both(b) & (c) Answer: Option D
Explanation:
No answer description available for this question.