What is the major requirement of a material if minimum deflection is required? Give an example.

What will be an ideal response?


A material with a higher Young’s modulus will have a greater resistance to deformation, hence less deflection than another material. For example, copper has a modulus of 1.172 MPa, which will have a greater deflection by about a factor of two versus stainless steel, which as a modulus of 1.999 MPa.

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The rock dove feeds entirely on insects it catches on the wing during its nocturnal flights

a. True b. False Indicate whether the statement is true or false

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Perform the “Calculating Horsepower” feature earlier in the chapter for a truck that weighs 2,500 kg, travels at a speed of 60 mph, and takes 10 seconds to reach 60 mph.

What will be an ideal response?

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Using the reciprocal key on a calculator, the reciprocal of 4 is:

A. 4.0 B. 4.4 C. 0.4 D. 0.25

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What is used for capacity control on centrifugal liquid chillers?

a. Cylinder unloading b. Hot gas bypass c. Inlet slide valves d. Inlet guide vanes

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