Q. The equivalent diameter for fluid flow through square cross section channel of side 'x', for pressure drop calculation purpose is given by

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Q. Hydraulic radius of 6" x 12" cross-section, is __________ inches.

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Q. Baffles in mixing tanks are provided to

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Q. Which of the following equations is valid for laminar flow of a fluid through packed bed?

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Q. In case of laminar flow of fluid through a circular pipe, the

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Q. Which of the following facilitates close control of flow of fluids ?

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Q. Fanning friction factor equation applies to the __________ fluid flow.

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Q. For an ideal fluid flow, Reynolds number is

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Q. Stoke's equation is valid in the Reynolds number range

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Q. The ratio of pressure forces to inertial forces is called the __________ number.

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Q. Bernoulli's equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli's equation ?

A. Fluid flow is frictionless & irrotational.
B. Fluid flow is steady.
C. Fluid flow is uniform & turbulent.
D. Fluid is compressible.
E. Fluid is incompressible.

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Q. Cavitation in a centrifugal pump results from

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Q. For turbulent flow of newtonion fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is

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Q. Power required by a centrifugal pump is proportional to (where, D = diameter, N = r.p.m)

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Q. Equivalent length of a pipe fitting is

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Q. Buckingham-π theorem states that in any physical problem including 'n' quantities having 'm' diamensions, the quantities can be arranged into __________ independent dimensionless parameters.

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Q. A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an __________ fluid.

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Q. Existence of boundary layer in fluid flow is because of the

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Q. A globe valve is the most suitable for applications, in which

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Q. __________ isused for measuring the static pressure exerted on the wall by a fluid flowing parallel to the wall in a pipeline.

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