A. Settleable solids
B. Suspended solids
C. Dissolved solids
D. None of these
Related Mcqs:
- Imhoff cone is used to measure________________?
A. Total organic solids
B. Total solids
C. Total in organic solids
D. Settleable solids - In case of Imhoff tanks_____________________?
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 - Pick up the correct statement from the following ?
A. Maximum daily flow = 2 times the average daily flow
B. Maximum daily flow = average daily flow
C. Sewers are designed for minimum permissible velocity at minimum flow
D. All the above - The detention period for plain sedimentation water tanks, is usually____________________?
A. 4 to 8 hours
B. 8 to 16 hours
C. 16 to 24 hours
D. 24 to 36 hours - The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called ____________________?
A. Inverted syphon
B. Depressed sewer
C. Sag pipe
D. all of these - The maximum diameter of sewers adopted in the designs is_______________?
A. 1.0 m
B. 2.0 m
C. 3.0 m
D. 4.0 m - 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 - If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of__________________?
A. Degradation
B. Active decomposition
C. Recovery
D. Cleaner water - pH value of sludge during alkaline regression stage, is__________________?
A. More than 7
B. Less than 7
C. Less than 6
D. More than 6 - In a sedimentation tank (length L, width B, depth D) the settling velocity of a particle for a discharge Q, is____________________?
A. Q/(B × D)
B. Q/(L × D)
C. Q/L
D. Q/(B × L)
