Engineering Board Exam Reviewer · Fluid Mechanics · medium

Critical flow in an open channel corresponds to:

  1. Maximum specific energy
  2. Maximum depth
  3. Minimum specific energy for a given discharge
  4. Zero velocity

Answer

C. Minimum specific energy for a given discharge

Solution

At critical depth, Fr = 1 and E is minimum.

More Fluid Mechanics questions

  1. The specific energy in an open channel is defined as:
  2. In turbulent flow through rough pipes at very high Reynolds numbers (fully rough zone), the friction factor depends mainly on:
  3. The dimensionless number most important in modeling ships, spillways and open channel flow is the:
  4. The dimensionless number most important in modeling flow in closed pipes (no free surface) is the:
  5. Which instrument measures discharge with the LEAST permanent head loss?
  6. The velocity at which flow changes from laminar to turbulent is called the:
  7. The kinetic energy correction factor for fully developed laminar flow in a circular pipe is:
  8. When a ship moves from fresh water into seawater, its draft:
  9. A body completely submerged in a fluid is in stable equilibrium if its center of gravity is:
  10. The maximum theoretical height to which water can be raised by suction at sea level is about:

All Fluid Mechanics Reviewer questions