Black smoke coming out of the chimney of a furnace is an indication of the use of ______________ in the furnace?
(A) Low amount of excess combustion air
(B) Large quantity of excess combustion air
(C) Hydrocarbon fuel
(D) Pulverised coal as fuel
Share this... |
Facebook
|
Twitter
|
Linkedin
|
Whatsapp
|
Your email address will not be published. Required fields are marked *