Hydraulic Radius and Wetted Perimeter

HideShow resource information

1. What's the definition of the hydraulic radius?

  • The proportion of water in contact with the bed and the banks of a river
  • The total length of the bed and the bank sides in contact with the water in the channel
  • The energy possessed by a river determined by the gradient
  • The proportion of perimeter of a stream channel cross-section that's in contact with the water - proportion of water in contact with the bed and the banks
1 of 8

Other questions in this quiz

2. In the summer, the hydraulic radius is...

  • smaller than in winter
  • larger than in winter

3. Work out the wetted perimeter of a river with height of 5m and bed of 8m.

  • 18m
  • 2.22m
  • 13m
  • 40m

4. The lower the hydraulic radius, the...

  • more erosion
  • less water proportionally in contact with the bed and the banks
  • more water proportionally in contact with the bed and the banks
  • faster the velocity

5. If the hydraulic radius is smaller, is there...

  • faster velocity
  • more friction
  • less friction
  • more erosion

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Rivers and fluvial processes resources »