Environmental Engineering The type of valve which is provided to control the flow of water in the distribution system at street corners and where the pipe lines intersect is Safety valve Sluice valve Check valve Scour valve Safety valve Sluice valve Check valve Scour valve ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alum as a coagulant is found to be most effective when pH range of water is 2 to 4 4 to 6 8 to 10 6 to 8 2 to 4 4 to 6 8 to 10 6 to 8 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the time of concentration is 9 minutes, then the intensity of rainfall according to British Ministry of Health formula will be 40 mm/hr 4 mm/hr 20 mm/hr 10 mm/hr 40 mm/hr 4 mm/hr 20 mm/hr 10 mm/hr ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The percentage of filtered water, which is used for backwashing in rapid sand filters, is about 5 to 7 0.4 to 1.0 0.2 to 0.4 2 to 4 5 to 7 0.4 to 1.0 0.2 to 0.4 2 to 4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The self cleansing velocity for all sewers in India is usually Less than 1.0 m/sec 1.5 m/sec to 2.0 m/sec 1.0 m/sec to 1.2 m/sec 3.0 m/sec to 3.5 m/sec Less than 1.0 m/sec 1.5 m/sec to 2.0 m/sec 1.0 m/sec to 1.2 m/sec 3.0 m/sec to 3.5 m/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewerage system is usually designed for 25 years 27 years 28 years 26 years 25 years 27 years 28 years 26 years ANSWER DOWNLOAD EXAMIANS APP
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