3020. 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 __________ percent.

< 37%
>71%
In between 37 & 71%
None of these
✅ The correct answer is option C.

Leave a Comment

Your email address will not be published.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

Scroll to Top