Hamad Environmental Engineering 19/05/2021 A. 0.01 to 0.05 ppm B. 0.05 to 0.5 ppm C. 0.5 to 1.0 ppm D. 1.0 to 5.0 ppm Related Mcqs: The hourly variation factor is usually taken as______________?A. 1.5 B. 1.8 C. 2.0 D. 2.7... The length of rectangular sedimentation tank should not be more than_______________?A. B B. 2B C. 4B D. 8B where B is the width of the tank... The pathogens can be killed by_______________?A. nitrification B. chlorination C. oxidation D. none of the above... The main disadvantage of cement concrete sewers is________________?A. less strength B. difficulty in construction C. difficulty in transportation due to heavy weight D. less life... Which of the following causes a decrease in per capita consumption ?A. use of metering system B. good quality of water C. better standard of living of the people D. hotter climate...
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