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Waste Water Engineering Mcqs

Q:

Which of the following conditions is not suitable for the disposal of excreta or sewage?

A) The waste does not pollute the ground surface B) It is not exposed to the atmosphere
C) It should be accessible for children D) It does not give odour nuisance
 
Answer & Explanation Answer: C) It should be accessible for children

Explanation: The place and criteria for the disposal of waste play a major role. It should be off the sight of the people so it doesn’t cause displease for the vision and it must not be accessible for children and household pets with respect to health aspects.

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Q:

Wastewater from different sources like bathrooms, kitchens and wash basins is called ______

A) Sewage B) Garbage
C) Sullage D) Discharge
 
Answer & Explanation Answer: C) Sullage

Explanation: Dry wastes such as dry leaves, paper and grass are called garbage. Discharge is the outflow of water or wastewater. Sewage is the wastewater from various houses. Sullage is the wastewater from bathroom, kitchen, wash basins, etc.

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125
Q:

What is night soil?

A) Soil containing urea B) Human excreta
C) Animal excreta D) Human excreta, animal excreta and urea
 
Answer & Explanation Answer: D) Human excreta, animal excreta and urea

Explanation: Human excrement collected at night from buckets, cesspools, privies and sometimes used as manure is called night soil. The night soil consists of human excreta, animal excreta and urea originating at privies, water closets, urinals and stables.

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