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
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?
Using the reciprocal key on a calculator, the reciprocal of 4 is:
A. 4.0 B. 4.4 C. 0.4 D. 0.25
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