11. Beehive coke ovens are made of __________ bricks.
12. Cold worked steel parts are normally subjected to
13. In cold working of metal as compared to its hot working
14. The melleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the miximum malleability?
15. The electrical conductivity of a __________ decreases with rise in temperature.
16. Tin coating on metals is not done by
17. An ideal material of construction for the storage of 50% caustic soda solution would be
18. Babbit metal is not a
19. Nickel (56%) and molybdenum (17%) alloys are called
20. Dry chlorine can be handled in a vessel made of
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