The formula which accepts the value of rugosity coefficient n = 0.012 to be used in Manning’s formula, is given by______________________?

Related Mcqs:

1. If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by_________________?

   A. Chezy
   B. Manning
   C. Bazin
   D. Kutter

2. In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is_______________?

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

3. The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to _________________?

   A. 1000
   B. 2100
   C. 2700
   D. 10,000
   E. 21,000.

4. The Chezy’s constant C in the formula V = C_________________?

   A. Size of the sewer
   B. Shape of the sewer
   C. Roughness of sewer surface
   D. All the above

5. The drainage area of a town is 12 hectares. Its 40% area is hard pavement ( K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration for the areas as 30 minutes and using the formula Ps = 900/(t + 60) the maximum run off is__________________?

   A. 0.10 cumec
   B. 0.12 cumec
   C. 0.15 cumec
   D. 0.20 cumec

6. The rational formula for peak drainage discharge, was evolved by_________________?

   A. Fruhling
   B. Lloyd David
   C. Kuichling
   D. All of these

7. The formula V = (1/n) r2/3____________________?

   A. Chezy’s formula
   B. Bazin’s formula
   C. Kutter’s formula
   D. Manning’s formula

8. For estimating the peak run off the rational formula Q = 0.0278 KpA was evolved by______________?

   A. Kinchling
   B. Lloyd Davis
   C. Frubling
   D. All the above

9. Hazen’s formula VS = 418 (GS – Gw)d [(3T + 70)/100] is used for the settlement velocity of the particles of diameter______________________?

   A. Less than 0.01 mm
   B. Less than 0.05 mm
   C. Less than 0.1 mm
   D. Greater than 0.1 mm

10. Capitalized cost of any structure or property is computed by which formula ?

    A. First cost + interest of first cost
    B. Annual cost – interest of first cost
    C. First cost + cost of perpetual maintenance
    D. First cost + salvage value