An Incompressible Fluid Is Flowing Through a Pipe with a Constriction

question 36

Multiple Choice

An incompressible fluid is flowing through a pipe with a constriction. The pipe is on an incline with an angle of 20.0 degrees. The narrow section is 15.0 m from the wide section and the narrow section is lower than the wide section. The velocity of the fluid in the wide section of the pipe is 6.00 m/s and the velocity of the fluid in the narrow section of pipe is 9.00 m/s. The pressure of the fluid in the wide section is 250 kPa. What is the pressure in the narrow section of the pipe? (density of the fluid is 1,000 kg/m³)

• A) 278 kPa
• B) 228 kPa
• C) 195 kPa
• D) 167 kPa
• E) 145 kPa

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Definitions:

Marginal Cost

The outgoings associated with the production of one more unit of a product or service.

Average Variable Cost

The total variable costs divided by the quantity of output produced; it varies with the level of output.

Long-Run Average Total Cost Curve

A graphical representation showing the relationship between output and average total cost when fixed cost has been chosen to minimize average total cost for each level of output.

Minimum

The lowest allowable or possible amount, level, or point.