GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
33. | Pick up the correct statement from the following: | |
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. | |