Engineering, 03.04.2020 04:55, cantrelate
Match each statement to the best option from the provided list. Options may be used more than once, or perhaps not at all.
1. A relatively low-density but high-strength metal that has excellent corrosion resistance as a cool solid, but not as a very hot solid or liquid.
2. The thermal conductivity of this metal is very low, making it difficult to machine since it doesn't effectively dissipate the heat produced at the cutting tool location.
3. The highest melting point pure metal.
4. A metal added to nickel-based superalloys to stabilize the precipitation of the secondary phase (gamma-prime) that strengthens such alloys.
5. A shiny metal that is completely brittle below 300 degrees C The pure metal with second-highest melting point.
6. A metal added to steels to drastically improve their corrosion resistance.
7. A metal whose oxide is more commonly produced (approximately 60x more by weight). The identity of this oxide mineral is rutile.
8. A metal that forms a very hard ceramic carbide for cutting tools and wear resistant coatings. Most of the annual extraction of this metal from the earth is utilized to form its carbide.
A. K
B. Li
C. Mg
D. W
E. Ti
F. Cr
G. Cs
H. Ca
I. Be
J. Re
K. Fr
Answers: 1
Engineering, 04.07.2019 18:10, tjeffers90028
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.
Answers: 1
Engineering, 04.07.2019 18:10, bckyanne3
Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.
Answers: 1
Engineering, 04.07.2019 18:10, agpraga23ovv65c
Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.
Answers: 2
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