In a mass production facility, steel components are to be hardened by carbon diffusion. Would you carry out the hardening process at room temperature or in a furnace at a high temperature, say 900°C? Why?
What will be an ideal response?
Solids, in general, have different diffusivities in each other. At a given temperature and pressure, the mass diffusivity of copper in aluminum will not be the equal to the mass diffusivity of aluminum in copper.
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Technician A says that piezoelectric effect is reversible. Technician B says that piezo actuators respond more slowly to inputs because they are required to build a magnetic field before a mechanical response results. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
Computer-based technology use throughout the green industry is ever-changing
Indicate whether the statement is true or false
____ are comprehensive, precisely detailed drawings accompanied by bills of material.
A. Engineering drawings B. Shop drawings C. Engineer's sketches D. Checkprints
Normal alkaline soils are characterized by all but which one of the following?
A) low levels of available manganese B) low levels of available boron C) high levels of exchangeable sodium D) high levels of molybdenum E) low levels of available iron