Cengel, John Cimbala Test

Fluid Mechanics Fundamentals and Applications 4e Yunus Cengel, John Cimbala (Test Bank All Chapters, 100% Original Verified, A+ Grade) All Chapters Complete files download link at the end of this file. 1 / 4

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A substance in the solid or gas phase is referred to as a fluid.True False A substance in the liquid or gas phase is referred to as a fluid.References

True / False Difficulty: Easy

A fluid can resist an applied shear stress by deforming.TrueFalse A fluid deforms continuously under the influence of shear stress, no matter how small.References

True / False Difficulty: Easy

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    A liquid expands until it encounters the walls of the container and fills the entire available space.True False A liquid forms a free surface in a larger container in a gravitational field. A gas, on the other hand, expands until it encounters the walls of the container and fills the entire available space.    A liquid forms a free surface in a larger container in a gravitational field.References

True / False Difficulty: Easy

Define internal, external, and open-channel flows.  External flow is the flow of an unbounded fluid over a surface such as a plate, a wire, or a pipe.Internal flow is the flow if the fluid is completely bounded by solid surfaces.  Open-channel flow is the flow when the pipe is partially filled with the liquid and there is a free surface  

Explanation:

External flow is the flow of an unbounded fluid over a surface such as a plate, a wire, or a pipe. The flow in a pipe or duct is internal flow if the fluid is completely bounded by solid surfaces.  The flow of liquids in a pipe is called open-channel flow if the pipe is partially filled with the liquid and there is a free surface, such as the flow of water in rivers and irrigation ditches.    References

Worksheet Difficulty: Easy

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    Define incompressible flow and incompressible fluid.  A fluid flow in which the density of the fluid remains nearly constant is called incompressible flow.A fluid flow in which density varies significantly is called compressible flow. 

Explanation:

A fluid flow during which the density of the fluid remains nearly constant is called incompressible flow. A flow in which density varies significantly is called compressible flow.    References

Worksheet Difficulty: Easy

  Must the flow of a compressible fluid necessarily be treated as compressible?Yes No A fluid whose density is practically independent of pressure (such as a liquid) is commonly referred to as an “incompressible fluid,” although it is more proper to refer to incompressible flow. The flow of compressible fluid (such as air) does not necessarily need to be treated as compressible since the density of a compressible fluid may still remain nearly constant during flow — especially flow at low speeds.    The flow of compressible fluid (such as air) does not necessarily need to be treated as compressible since the density of a compressible fluid may still remain nearly constant during flow – especially flow at low speeds.References

Yes / No Difficulty: Easy

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