chemical engineering chemical environmental engineering chemical engineering MCQs – Page 15

Practise multiple-choice questions from chemical engineering chemical environmental engineering chemical engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering chemical environmental engineering chemical engineering Mcqs
281. Aerobic biological oxidation ponds used for the purification of polluted water__________________?
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A. Destroys/removes pathogen from the sewage

B. All A., B. & C.

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

D. Is not very effective for non-biodegradable substances (e.g. ABS) containing effluents

282. Carbon monoxide is a pollutant, which causes_________________?
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A. Respiratory disease (e.g. asthma)

B. Damage to building materials like marble

C. Retardation in crop growth

D. Asphyxiation (suffocation) leading to death