Transition length for a turbulent fluid entering into a pipe is around _____________ times the pipe diameter?

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The location of centre of pressure, which defines the point of application of the total pressure force on the surface, can be calculated by applying the principle of moments according to which “sum of the moment of the resultant force about an axis is equal to the sum of the components about the same axis”. The centre of pressure of a rectangular surface (of width ‘w’) immersed vertically in a static mass of fluid is at a depth of (where, y = depth of the liquid) ?

A. 1/(y/3) B. 2y/3 C. 1/(y/4) D. 3y/4...

In deriving Bernoulli’s equation, fluid is assumed to be________________?

A. Incompressible, frictionless, steady, along a streamline B. Uniform, steady, incompressible, along a streamline C. Steady, density being pressure dependent, frictionless D. None of these...

In case of turbulent flow of fluid through a circular pipe, the __________________?

A. Mean flow velocity is about 0.5 times the maximum velocity B. Velocity profile becomes flatter and flatter with increasing Reynolds number C. Point of maximum instability exists at a distance of 2r/3 from the pipe wall (r = pipe radius) D. Skin friction drag, shear stresses, random orientation of fluid particles and slope of … In case of turbulent flow of fluid through a circular pipe, the __________________?Read More...

For a given fluid flow rate, which of the following incurs maximum head loss ?

A. Orificemeter B. Venturimeter C. Flow nozzle D. All of them incur the same head loss...

The velocity for subsonic flow in a pipeline_______________?

A. Increases in the downstream direction B. Is constant C. Decreases in the downstream direction D. Is independent of the area of flow...