Fine grit present in sewage is removed in the __________ during sewage treatment. Options: A . &nbspGrit chamber B . &nbspDetritus tank C . &nbspSkimming tank D . &nbspTrickling filter

Fine grit present in sewage is removed in the _________

Question

Fine grit present in sewage is removed in the __________ during sewage treatment.

Options:

A . Grit chamber

B . Detritus tank

C . Skimming tank

D . Trickling filter

Answer: Option B

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Question 2. Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million).....

Question 3. Average human body contains about __________ percent water by weight.....

Question 4. Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about ________....phosgene in air is about __________ ppm (parts per million).

Question 5. Septic tanks are used for the __________ of the deposited solids.....

Question 6. Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is __________ micro gram (μ g)/litre.....public water supply system is __________ micro gram (μ g)/litre.

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Question 9. Reingleman chart No. 2 corresponds to __________ percent black smoke.....

Question 10. Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air.....

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