Hamad Environmental Engineering 08/04/2020 A. acidic and alkaline B. alkaline and acidic C. both acidic D. both alkaline Related Mcqs: The settling velocity of a particle in a sedimentation tank increases if______________?A. particle size is decreased B. the surface area of tank is increased C. the depth of tank is decreased D. none of the above... Which of the following sewers is preferred for combined system of sewage ?A. circular sewer B. egg shaped sewer C. rectangular sewer D. none of the above... The pipe which is used to carry the discharge from sanitary fittings like bath rooms, kitchens etc. is called_______________?A. waste pipe B. soil pipe C. vent pipe D. antisiphonage pipe... The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is______________?A. 1 ppm B. 4 ppm C. 10 ppm D. 40 ppm... The suitable method of forecasting popu¬lation for a young and rapidly increasing city is_________________?A. arithmetical increase method B. geometrical increase method C. incremental increase method D. graphical method...
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