When the Mach number is equal to unity, the flow is called sonic flow.

More Questions from Hydraulics and Fluid Mechanics

• Poise is the unit of viscosity in C.G.S. system of units.
• The reciprocal of Euler's number is called Newton number.
• When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called
• The unit of surface tension is
• The total pressure on the top of a closed cylindrical vessel competely filled up with a liquid is
• The ratio of the inertia force to the __________ is called Euler's number.
• The body will float if the force of buoyancy is __________ the weight of the liquid displaced.
• A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.
• Kinematic viscosity is the product of dynamic viscosity and the density of the liquid.
• The top of the weir over which the water flows is known as

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