ME 3752 : Tests
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Id (last 4 digits)_________: find and circle the correct answer in each of the following:(10) Friction coefficient has the units of: a) cm/sec b) cm2/sec c) j/m3 d) j/m. sec: none of above (noa). Creep resistance requires: a) high diffusion activation energy (94) Fatigue ratio is the ratio of: fatigue strength to uts (76) Answer the following questions briefly in one word or one sentence for each:(15) Give its units. (101) dividing the wear volume by the wear distance. Units of meters squared: favorable residual stress to improve fatigue resistance is____compressive___. p109. Also write your name at the back of page on the top: name an inhibitor. The energy required turns out to be low along these planes of low resistances: under what condition is low cycle fatigue dangerous, stress corrosion, due to conjoint action of both fatigue and stress corrosion. Why: microvoids nucleate along the grain boundaries and grow steadily.
