Normal depth in open channel flow is the depth of flow corresponding to_______________?

Related Mcqs:

1. The sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of 0.2 m/sec. If the ratio of width to depth is 2, the depth is____________________?

   A. 100 cm B. 110 cm C. 120 cm D. 150 cm...

2. In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient,______________?

   A. Is only provided B. Is doubled C. Is trebled D. Is not enough...

3. The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is________________________?

   A. 20 cm B. 25 cm C. 40 cm D. 50 cm...

4. The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is_____________________?

   A. 204 cu.m B. 208 cu.m C. 212 cu.m D. 216 cu.m...

5. If the depth of partial flow in a sewer of diameter 2 m, is 50 cm, its wetted perimeter is____________________ ?

   A. 1/3 B. 0/2 C. 0/3 D. 2 /3...

6. If the depth of flow in a circular sewer is 1/4th of its diameter D, the wetted perimeter is______________?

   A. /2 B. /4 C. /3 D. D...

7. The normal values of over flow rates for secondary sedimentation tanks, ranges between__________________?

   A. 25,000 to 35,000 litres/sqm/day B. 40,000 to 50,000 litres/sqm/day C. 50,000 to 60,000 litres/sqm/day D. 80,000 to 10,000 litres/sqm/day...

8. The normal value of over flow rates for plain primary sedimentation tanks, ranges between________________?

   A. 25,000 to 35,000 litres/sqm/day B. 40,000 to 50,000 litres/sqm/day C. 50,000 to 60,000 litres/sqm/day D. 80,000 to 100,000 litres/sqm/day...

9. The normal values of over flow rates for sedimentation tanks using coagulant, ranges between__________________?

   A. 25,000 to 35,000 litres/sqm/day B. 40,000 to 50,000 litres/sqm/day C. 50,000 to 60,000 litres/sqm/day D. 80,000 to 100,000 litres/sqm/day...

10. When the flow parameters at any given instant remain same at every point, then flow is said to be____________________?

    A. quasi static B. steady state C. laminar D. uniform E. static....