Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/hour 15 to 30 cm/minute 5 to 10 cm/sec 15 to 30 cm/sec 15 to 30 cm/hour 15 to 30 cm/minute 5 to 10 cm/sec 15 to 30 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The treatment of water with bleaching powder is known as Hypo-chlorination Pre-chlorination Super chlorination De-chlorination Hypo-chlorination Pre-chlorination Super chlorination De-chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are designed for Maximum and minimum flow Average flow only Minimum flow only Maximum flow only Maximum and minimum flow Average flow only Minimum flow only Maximum flow only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The slope of sewer shall be Steeper than 1 in 20 Zero Given in the direction of natural slope of ground Given in the direction opposite to natural slope of ground Steeper than 1 in 20 Zero Given in the direction of natural slope of ground Given in the direction opposite to natural slope of ground ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The most commonly used sewer under culverts is Semi-elliptical sewer Horseshoe type sewer Circular cast iron sewer Circular brick sewer Semi-elliptical sewer Horseshoe type sewer Circular cast iron sewer Circular brick sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effective size of sand particles used in slow sand filters is 1.00 to 1.80 mm 0.25 to 0.35 mm 0.35 to 0.60 mm 0.60 to 1.00 mm 1.00 to 1.80 mm 0.25 to 0.35 mm 0.35 to 0.60 mm 0.60 to 1.00 mm ANSWER DOWNLOAD EXAMIANS APP
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