Question

The chances of hazard increase with the increase in the size of combustible dust particles in the foundry.

(a) True

(b) False

I have been asked this question at a job interview.

My query is from Dust Collecting Equipment in division Foundry Environment Health & Dust Problem in Foundries of Casting-Forming-Welding I

Answer 1

Correct choice is (b) False

The best I can explain: The chances of hazard increases due to a decrease in the size of combustible dust in the foundry. More particles in small size in a specific volume provide a larger area for combustion. The volatility of fine dust particles can easily propagate explosion by contacting ignition which might further cause dangerous physical injuries to the foundry workers.