Environmental Engineering In Ce - Study Mode
[#166] Ozone is
Correct Answer
(D) Both B & C
[#167] Pick out the wrong statement
Correct Answer
(C) Carbon monoxide present in the two stroke petrol engine exhaust is much less as compared to that emitted from a four stroke engine
[#168] High noise level in a chemical plant can be controlled by the
Correct Answer
(D) All of the above
[#169] Which of the following fine dust removal equipments is the most efficient?
Correct Answer
(C) Electrostatic precipitator
[#170] When the concentration of SO 2 in air is greater than __________ ppm, it gives a pungent smell.
Correct Answer
(D) 4