Question

The explosion limit of blast furnace gas is 37 to 71 % gas in the gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space if its concentration in the gas-air mixture is :

• A. < 37 %
• B. > 71 %
• C. In between 37 & 71 %
• D. None of these

Answer 1

Answer: (C)

In between 37 & 71 %

Explosion limit of blast furnace gas is 37% to 71 % gas in gas-air mixture.

It means that the blast furnace gas will explode when burnt in a confined space if its concentration in the gas-air mixture is in between 37% to 71 %.

Hence, option $C$ is correct.