Environmental Engineering MCQ Questions & Answers | Chemical Engineering

A. NO_x

B. Hg

C. SO₂

D. F

A. Dust & mists

B. Smoke & fumes

C. Photochemical smog & soot

D. None of these

A. Deoxidation

B. Chlorination

C. Bleaching

D. Aeration

A. Conversion of CO into CO₂ in the second compartment

B. Conversion of NO_x into N₂ and NH₃ in the first compartment

C. Oxidation of unburnt hydrocarbon fuel in the second compartment

D. All of the above

A. A primary pollutant

B. A secondary pollutant

C. Impervious to ultra-violet rays

D. Both B & C

A. Low ozone layer thickness in polar regions is due to cold climatic conditions

B. Amount of unburnt hydrocarbons emitted by two stroke petrol engine is more as compared to that emitted by a four stroke engine

C. Carbon monoxide present in the two stroke petrol engine exhaust is much less as compared to that emitted from a four stroke engine

D. Mercury as a pollutant can enter the blood stream & the digestive system/ lungs and is responsible for causing minamate disease

A. Suppression of noise at the source itself

B. Path control of noise

C. Protection of operating personnel

D. All of the above

A. Bag filter

B. Scrubber

C. Electrostatic precipitator

D. Cyclone separator

A. 0.01

B. 0.1

C. 1

D. 4

A. Destroys/removes pathogen from the sewage

B. Is not very effective for nonbiodegradable substances (e.g. ABS) containing effluents

C. Destroys/removes pathogen much more effectively if the sewage is chlorinated

D. All of the above