Engineering, 21.09.2021 20:50 sierracupcake0220
Because Plasma Arc Cutting is so much faster than Oxyfuel Cutting, there is no time for the material to get hot. a) Trueb) False
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Engineering, 04.07.2019 19:10
10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.
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Engineering, 04.07.2019 19:20
List 3 options on how to reduce knocking problens during engine process,
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Engineering, 06.07.2019 04:10
Along steel shaft of 10 cm diameter is austenised at 870°c and then quenched in a liquid at 30oc. the average surface heat transfer coefficient is 2000 w/m2. °c. the relevant thermophysical properties of the shaft are: p=7800 kg/m", k=20 w/mk, cp=0.46 kj/kg.k calculate: a)-the time required for the center temperature to drop to 200°c. b)-the temperature at half-radius at that moment. c)-the amount of heat that had been transferred to the liquid by that time per meter length of the shaft
Answers: 1
Engineering, 06.07.2019 04:20
Assume that you are asked to perform a boring operation on a large-diameter hollow workpiece. would you use a horizontal or a vertical boring mill?
Answers: 3
Because Plasma Arc Cutting is so much faster than Oxyfuel Cutting, there is no time for the material...
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