Environmental Engineering In Ce - Study Mode

[#231] Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ substances.
Correct Answer

(C) Inorganic

[#232] Which of the following is the most lethal water pollutant?
Correct Answer

(A) Phenol and cynide

[#233] Operating principle of cyclone separator is based on the action of __________ dust particles.
Correct Answer

(B) Centrifugal force on

[#234] Black smoke coming out of the chimney of a furnace is an indication of the use of __________ in the furnace.
Correct Answer

(A) Low amount of excess combustion air

[#235] Shouting by a man at his full voice corresponds to a voice level of about __________ decibels.
Correct Answer

(C) 80