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Environmental Engineering - Interview Questions and Answers

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131. The minimum and maximum diameters of sewers shall preferably be
A. 15 cm and 100 cm
B. 15 cm and 300 cm
C. 30 cm and 450 cm
D. 60 cm and 300cm
Explanation:
132. For a country like India, where rainfall is mainly confined to one season, the suitable sewerage system will be
A. separate system
B. combined system
C. partially combined system
D. partially separate system
Explanation:
133. , The depression of water table in a well due to pumping will be maximum
A. at a distance R from the well
B. close to the well
C. at a distance R/2 from the well
D. none of the above
Explanation:
134. Sewerage system is usually designed for
A. 10 years
B. 25 years
C. 50 years
D. 75 years
Explanation:
135. Most suitable section of sewer in separate sewage system is
A. rectangular section
B. circular section
C. standard form of egg shaped sewer
D. modified egg shaped section
Explanation: