Define incompressible flow and incompressible fluid. Must the flow of a compressible fluid necessarily be treated as compressible?
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A fluid flow during which the density of the fluid remains nearly constant is called incompressible flow. A fluid whose density is practically independent of pressure (such as a liquid) is called an incompressible fluid. The flow of compressible fluid (such as air) is not necessarily compressible since the density of a compressible fluid may still remain constant during flow.
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a. 1.0 b. 2.0 c. 3.0 d. 4.0
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Use the following information to solve problems 7 through 10. A drafter must determine several measurements before a gear can be drawn. These measurements are often found by using formulas. Most gear-cutting data can be found if the diametral pitch P and the number of teeth N are known. Given the diametral pitch P is 8, and the number of teeth N is 96, use the following formulas to solve the problems.a. Pitch Diameter D: 
b. Outside Diameter O: 
c. Addendum A:
src="https://sciemce.com/media/4/ppg__examview__image32__00001_res__sa007-3.jpg" border="0">d. Thickness of the Gear Tooth T: 
e. Depth of the Gear Tooth W: 
Find the pitch diameter D.
What will be an ideal response?