Engineering Board Exam Reviewer · Fluid Mechanics · easy

The discharge over a rectangular weir is proportional to:

1. H3/2
2. H5/2
3. H
4. H1/2

Answer

A. H3/2

Solution

Q = (2/3)Cd Lsqrt(2g) H3/2.

More Fluid Mechanics questions

1. The discharge over a 90° V-notch (triangular) weir is proportional to:
2. A weir is used to:
3. Open channel flow with a Froude number greater than 1 is called:
4. A sudden rise in water surface when supercritical flow changes to subcritical flow is called a:
5. The hydraulic radius of a channel is defined as:
6. Manning's formula is used for:
7. The Hazen–Williams formula is commonly used for:
8. For pipes connected in parallel:
9. Losses in pipe fittings, valves, bends and sudden changes in cross section are called:
10. The chart that relates the friction factor to the Reynolds number and relative roughness is the:

All Fluid Mechanics Reviewer questions