Re-entrant or Borda's mouthpiece is an __________ mouthpiece.

More Questions from Hydraulics and Fluid Mechanics

• The ratio of velocity of fluid in an undisturbed stream to the velocity of sound wave is known as Mach number.
• The specific weight of water in S.I. units is taken as
• The density of air is same at different heights.
• The ratio of the inertia force to the surface tension force is called Weber's number.
• The rise, in water level, which occurs during the transformation of the unstable shooting flow to the stable streaming flow is called hydraulic jump.
• If a body floating in a liquid occupies a new position and remains at rest in this new position, when given a small angular displacement, The body is said to be in __________ equilibrium.
• A flow is called sub-sonic, if the Mach number is
• The loss of head at exit of a pipe is
• Which of the following statement is correct?
• The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to

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