Question

1. Uniform flow in an open channel exists when the flow is steady and the channel is
   1. Prismatic
   2. Non-prismatic and the depth of the flow is constant along the channel
   3. Prismatic and the depth of the flow is constant along the channel
   4. Frictionless

2. In uniform flow there is a balance between:
   1. Gravity and frictional forces
   2. Gravity and inertial forces
   3. Inertial and frictional forces
   4. Inertial and viscous forces

3. The water depth in a wide channel is equal to 1.2m (For a vey wide channel R is approximately equal to y). If Chezy coefficient is equal to 49 (metric), then Manning coefficient n (metric) is equal to:
   1. 0.024
   2. 0.021
   3. 0.026

Answer 1