Engineering, 10.03.2020 01:58 loveyeti106838
Plastic bottles are used to contain fluids as various as milk and engine oil. A typical polyethylene bottle weighs about 30 grams and has a wall thickness of about 0.8 mm. The designer specifies a tolerance of 1 mm and a surface roughness of 10 μm. The shape is 3-D hollow. The batch size is large (1,000,000 bottles). What process could be used to make them? (a) List the function and constraints, leave the objective blank and enter "Choice of process" for the free variable (b) Use the process selection charts to identify possible processes to make the casing.
Answers: 2
Engineering, 04.07.2019 18:10
The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false
Answers: 2
Engineering, 04.07.2019 18:10
Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery
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Engineering, 04.07.2019 18:20
Determine the damped natural frequencies and the steady state response of a decoupled damped forced two degrees of freedom system. 10ä1 + 2q1 20q1 10 cos t; 10q2 +4q2 + 40q2 10 cos t
Answers: 3
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.
Answers: 2
Plastic bottles are used to contain fluids as various as milk and engine oil. A typical polyethylene...
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