Hamad Waste Water Engineering 17/09/2021 A. Brick sewer B. Cast iron sewer C. R.C.C. sewer D. Lead sewer Related Mcqs: A rain sanitary sewer is constructed to carry_________________ ?A. Sanitary sewage B. Storm sewage C. Surface water D. Ground water... In septic tanks, decomposition of organic bacteria, is done by_____________________?A. Anaerobic bacteria B. Aerobic bacteria C. Both types of bacterias D. None of these... Clogging of sewers, is caused due to_______________?A. Silting B. Low discharge C. Greasy and oily matters D. All the above... A safety lamp when inserted in the upper portion of a manhole causes flames. It indicates the presence of______________?A. Carbondioxide gas B. Hydrogen sulphide gas C. Methane gas D. Petrol vapours... In septic tanks__________________?A. Free board of 0.3 m may be provided B. The baffles or tees are extended up to top level of scum C. The clear space between the baffle top and covering slab is about 7.5 cm D. All the above...
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