Environmental Engineering QUESTIONS AND ANSWERS

Civil Engineering : Environmental Engineering QUESTIONS AND ANSWERS :: part5 : 21 to 25

Following Civil Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

21.Sewage treatment units are designed for

maximum flow only

minimum flow only

average flow only

maximum and minimum flow

22.Standard BOD is measured at

20�C - 1day

25�C- 3day

20�C - 5day

30�C- 5day

23.Generally the detention period for grit chambers is kept as

1 minute

5 minutes

2-4 hours

12 hours

24.If Biochemical oxygen demand (BOD) of a town is 20000 kg/day and BOD per capita per day is 0.05 kg, then population equivalent of town is

1000

4000

100000

400000

25.If the sewage contains grease and fatty oils, these are removed in

grit chambers

detritus tanks

skimming tanks

sedimentation tanks

More Environmental Engineering QUESTIONS AND ANSWERS available in next pages

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