Chemical Environmental Engineering MCQs

A. Smoke
B. Powder
C. Grit
D. Aggregates

A. Nox
B. Hg
C. So2
D. F

A. Allows solar radiation (ultraviolet) of short wave-length to pass through
B. Reflects and absorbs the longer wavelength (infra-red) radiations
C. Prevents solar heat being radiated out completely, resulting in ‘heat trap’ i.e., global warming
D. All a., b. and c.

A. Blood posioning
B. Anaemia
C. Nervous system disorder
D. All a., b. & c.

A. 1
B. 10
C. 250
D. 1000

A. Silica gel
B. Active carbon
C. Bog iron
D. Limestone powder

A. Biological oxygen treatment
B. Coagulation and filtration
C. Adsorption in ion exchange materials
D. None of these

A. 0.1
B. 25
C. 100
D. 1000

A. Turbidity
B. Disease
C. Bad odour
D. Bad taste & colour

A. 120
B. 140
C. 170
D. 200