A. w r S S
B. w r1/2
C. w r S
D. w r2/3
A. d² (0.011d + 0.785H)/Q
B. d (0.022d + 0.085H)/Q
C. d (0.785d + 0.011H)/Q
D. d (0.285d + 0.011H)/Q
A. At the end of septic tanks
B. On manholes
C. With a W.C. trap
D. At the beginning of sewer line
A. More than 7
B. Less than 7
C. Less than 6
D. More than 6
A. 52.5 cm
B. 67.5 cm
C. 82.5 cm
D. None of these
A. Both A and R is true and R is the correct explanation of A
B. Both A and R is true but R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true
A. Circular septic tanks
B. Rectangular septic tanks
C. Circular Imhoff double tanks with bottom hoppers
D. Circular Imhoff double storey tanks without bottom hoppers
A. 100 mm dia.
B. 150 mm dia.
C. 225 mm dia.
D. All of these
A. D’ = 0.64 D
B. D’ = 0.74 D
C. D’ = 0.84 D
D. D’ = 0.94 D
A. The shape is rectangular
B. Detention period is 2 hours
C. The velocity of flow is restricted to 0.30 m/minute
D. All the above