Engineering, 23.08.2021 16:10 officialrogerfp3gf2s
From the list below, select three metallurgical/processing techniques that are employed to enhance the creep resistance of metal alloys. Dispersion strengthening by using an insoluble second phase. Unidirectional solidification of alloys. Hardening (carburizing, nitriding) or shot peening. Polishing the surface to remove stress amplification sites. Anneal the metal alloy. Increasing the grain size or producing a grain structure with a preferred orientation. Solid solution alloying. eTextbook and Media
Answers: 2
Engineering, 04.07.2019 18:10, jojoangelique13
The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m
Answers: 2
Engineering, 04.07.2019 19:20, horsedoggal1234
Consider airflow over a flat plate of length l = 1.5 m under conditions for which transition occurs at le = 0.9 m based on the critical reynolds number, re, e = 5 x 10. evaluating the thermophysical properties of air at 400 k, determine the air velocity. (hint: use the tables to find the properties of air)
Answers: 3
Engineering, 06.07.2019 04:10, trist22
An inventor claims to have developed a reversed heat engine (ie. a heat pump) which is able to deliver 10 kj heat into the room at 20°c from outside ambient temperature of -10°c by consuming only 2 kj electricity in winter. this claim is a)-impossible b)-possible only if the heat pump is ideal c)-practically possible d)-unable to be assessed as it depends on the working fluid used in the heat pump.
Answers: 2
From the list below, select three metallurgical/processing techniques that are employed to enhance t...
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