Environmental Engineering MCQs

A. aquifers

B. aquiclude

C. filters

D. intakes

A. higher temperature

B. sunlight

C. satisfying oxygen demand

D. none of the above

A. equal to dry weather flow (DWF)

B. 2xDWF

C. 3 x DWF

D. 6xDWF

A. particle size is decreased

B. the surface area of tank is increased

C. the depth of tank is decreased

D. none of the above

A. does not require alkalinity in water for flocculation

B. does not affect pH value of water

C. increases pH value of water

D. decreases pH value of water

A. 20°C – 1day

B. 25°C- 3day

C. 20°C – 5day

D. 30°C- 5day

A. particle size is decreased

B. the surface area of tank is increased

C. the depth of tank is decreased

D. none of the above

A. aerobic only

B. anaerobic only

C. aerobic in lower compartment and anaerobic in upper compartment

D. anaerobic in lower compartment and aerobic in upper compartment

A. more depth

B. less depth

C. more discharge

D. less discharge

A. nitrogen

B. carbon dioxide

C. hydrogen sulphide

D. methane