Sail E0 Webinar
Question
Pick up the correct statement from the following:
Options:
A .  Plastics have generally low melting point
B .  The coefficient of thermal expansion of plastics is about three times than that of steel
C .  The acoustical boards prepared by impregnating fibre-glass with phenolic resins has absorption coefficient of about 0.67
D .  All the above
Answer: Option D

Submit Your Solution Below and Earn Points !
Next Question

Submit Solution

Your email address will not be published. Required fields are marked *

Latest Videos

Latest Test Papers