Correct answer
E. railway carriage couplings
Explanation
The correct answer is railway carriage couplings.
The tendency of a liquid surface to contract is due to the following property________?
Guest’s theory of failure is applicable for following type of materials________?
In an experiment to determine dryness fraction of steam, the mass of water separated was 1.2 kg in 15 mts and the mass of steam passed out in same time was 4.8 kg. Dryness fraction is________?
The atmospheric pressure with rise in altitude decreases________?
In perpetual inventory control, the material is checked as it reaches its________?
Carbonation of coal is the process of________?