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Fluid Mechanics MCQs: 168 Questions & Answers in Engineering

168 Fluid Mechanics MCQs in Engineering with answers & explanations. Page 7. Practice objective questions for competitive exams, interviews & self-assessment… Use the answer toggle below to show or hide all solutions, tap an option to check one question, or open a question for its own page.

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Fluid Mechanics MCQs: 168 Questions & Answers in Engineering

For a given Reynold number as d/D for an orifice increases, Cd will (where, d & D are orifice & pipe diameters respectively).

I.D. of 1/4" schedule 40 pipe is 0.364". I.D. of a 1/2" schedule 40 pipe would be __________ inch

The valve commonly used in pipes larger than 2" dia is a

Vena-contracta pressure tapping is at a distance __________ from the position of an orificemeter fitted in a pipe of internal diameter 'd'

The energy loss over a length of pipeline according to Darcy-Weisbach equation for pipe flow is _________ the mean velocity of flow.

A pitched-blade turbine draws __________ a straight blade turbine.

Viscosity of a liquid decreases __________ with rise in temperature.

In isotropic turbulence, the __________ are equal to each other.

Bernoulli's equation for steady, frictionless, continuous flow states that the __________ at all sections is same.

If in a flow field, between any two points, then the flow must be

Which of the following factors does not contribute to the pressure drop in a pipeline ?

A piezometer provided in the pipe measures

Air vessel of a reciprocating pump is initially filled with

The hydraulic diameter of an annulus of inner and outer radii Ri and Ro respectively is

For turbulent flow of an incompressible fluid through a pipe, the flow rate Q is proportional to (Δ P)n, where ΔP is the pressure drop. The value of exponent 'n' is

__________ pumps are axial flow pumps.

Sewage sludge is __________ type of non-Newtonion fluid.

Horsepower increase of a centrifugal gas compressor without altering the volumetric flow rate will __________ the gas discharge pressure.

A centrifugal pump loses prime after starting. The reason of this trouble may be

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