Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by________________?

Related Mcqs:

1. The discharge over a broad crested weir is maximum when the depth of flow is_______________?

   A. H/3 B. H/2 C. 2 H/5 D. 2 H/3 where H is the available head...

2. The theoretical value of coefficient of contraction of a sharp edged orifice is_______________?

   A. 0.611 B. 0.85 C. 0.98 D. 1.00...

3. In a Sutro weir, the discharge is proportional to________________?

   A. H1/2 B. H3/2 C. H5/2 D. H where H is head...

4. Coefficient of contraction for an external cylindrical mouthpiece is_________________?

   A. 1.00 B. 0.855 C. 0.7H D. 0.611...

5. A rectangular block 2 m long, 1 m wide and 1 m deep floats in water, the depth of immersion being 0.5 m. If water weighs 10 kN/m3, then the weight of the block is________________?

   A. 5kN B. lOkN C. 15 kN D. 20 kN...

6. Surge wave in a rectangular channel is an example of_________________?

   1. steady flow 2. unsteady flow 3. uniform flow 4. non-uniform flow The correct answer is? A. (1) and (3) B. (2) and (3) C. (1) and (4) D. (2) and (4)...

7. A vertical rectangular plane surface is submerged in water such that its top and bottom surfaces are 1.5 m and 6.0 m res-pectively below the free surface. The position of center of pressure below the free surface will be at a distance of________________?

   A. 3.75 m B. 4.0 m C. 4.2m D. 4.5m...

8. Which of the following is used to measure the discharge ?

   A. current meter B. venturimeter C. pitot tube D. hotwire anemometer...

9. The discharge through a V- notch varies as______________?

   A. H1/2 B. H3’2 C. H5/2 D. H5’4 where H is head...

10. The discharge of a liquid of kinematic viscosity 4 cm2/sec through a 8 cm dia-meter pipe is 3200n cm7sec. The type of flow expected is__________________?

    A. laminar flow B. transition flow C. turbulent flow D. not predictable from the given data...