A. Total organic solids
B. Total solids
C. Total in organic solids
D. Settleable solids
Related Mcqs:
- Imhoff cone is used to determine_____________________?
A. Settleable solids
B. Suspended solids
C. Dissolved solids
D. None of these - 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 - For treating the sewage of a large city, you will recommend_________________?
A. A sedimentation tank and an activated sludge treatment plant
B. A plant consisting of Imhoff tanks with low rate trickling filters
C. Sedimentation tanks with high rate trickling filters
D. None of these - The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is__________________?
A. Vs = 418 (Gs – Gw) d [(3T + 70)/100]
B. Vs = 418 (Gs – Gw)d² [(3T + 70)/100]
C. Vs = 218 (Gs – Gw)d² [(3T + 70)/100]
D. Vs = 218 (Gs – Gw)d [(3T + 70)/100] - In detritus tanks______________________?
A. Flow velocity is kept 0.09 m/sec
B. Detention period is kept 3 to 4 minutes
C. Organic and inorganic materials are separated
D. All the above - A rainfall may be classified as acidic if its pH value is less or equal to________________?
A. 6
B. 7
C. 5
D. 6.5 - If is the diameter of upper circular portion, the area of cross-section of a standard egg shaped sewer, is____________________?
A. D²
B. D²
C. D²
D. D² - The following is the physical characteristic of sewage___________________?
A. Turbidity
B. Colour
C. Odour
D. All the above - The minimum diameter of a sewer is kept __________________?
A. 10 cm
B. 15 cm
C. 20 cm
D. 25 cm - Pick up the in-correct statement from the following?
A. Manholes are provided in sewer pipes at suitable intervals
B. Catch basins are generally provided in sewers for carrying drainage discharge
C. Inlets are generally provided in all sewers
D. None of these
