Waste Water Engineering In a sedimentation tank (length L, width B, depth D) the settling velocity of a particle for a discharge Q, is Q/L Q/(L × D) Q/(B × D) Q/(B × L) Q/L Q/(L × D) Q/(B × D) Q/(B × L) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage may become stale in Three to four hours Two to three hours One hour Six hours Three to four hours Two to three hours One hour Six hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is 1 in 100 upward 1 in 100 downward 1 in 500 upward 1 in 503 upward 1 in 100 upward 1 in 100 downward 1 in 500 upward 1 in 503 upward ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For efficient working of a sewer, it must be ensured that Neither (A) nor (B) Minimum velocity of 0.45 m/sec, is maintained at its minimum flow Both (A) and (B) A maximum velocity of 0.90 m/sec, is maintained at its maximum flow Neither (A) nor (B) Minimum velocity of 0.45 m/sec, is maintained at its minimum flow Both (A) and (B) A maximum velocity of 0.90 m/sec, is maintained at its maximum flow ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The first stage of neutral process of sludge digestion, is Acid regression Alkaline fermentation None of these Acid fermentation Acid regression Alkaline fermentation None of these Acid fermentation ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The screens are fixed At an angle 30° to 60° to the direction of flow None of these Parallel to the direction of flow Perpendicular to the direction of flow At an angle 30° to 60° to the direction of flow None of these Parallel to the direction of flow Perpendicular to the direction of flow ANSWER DOWNLOAD EXAMIANS APP