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The bearings used in the propeller shafts are prepared using ________(a) Phenol-formaldehyde resin(b) TEFLON(c) Vinyl cyanide(d) Vinyl iso cyanideI got this question in a job interview.The origin of the question is Preparation, Properties and Applications of Some Compounds topic in chapter High Polymers and Plastics of Applied Chemistry

Answer»

Right answer is (a) Phenol-formaldehyde resin

For EXPLANATION I WOULD say: The bearings USED in the propeller shafts are MADE by using Phenol-formaldehyde resin. It is ALSO used in the paper industry and rolling mills.



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