Engineering, 16.10.2020 15:01, pearpeaerrr1993
Which best describes the future of employment in the Energy career cluster?
1. Oil and gas extraction, pipeline transportation, and metal ore mining are on the rise while coal mining and quarrying are on the decline.
2. Quarrying and developing plant-based fuels are on the rise while oil and gas extraction and coal mining are on the decline.
3. Quarrying, electric power generation, and gas station operation are on the rise while pipeline transportation and metal ore mining are on the decline.
4. Oil and gas extraction and developing plant-based fuels are on the rise while coal mining, metal ore mining, and pipeline transportation are on the decline.
Answers: 3
Engineering, 04.07.2019 18:20, samantha636
Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg โข k, determine for the air the amount of entropy produced, in kj/k
Answers: 2
Engineering, 04.07.2019 19:10, LadyHolmes67
Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false
Answers: 3
Engineering, 06.07.2019 03:10, tatedason33741
Asolid steel sphere (k=63.9 w m-1 k-1 , ? =7832 kg m-3 , c=0.523 kj kg-1 k-1 ), 100 mm in diameter is initially at a uniform temperature of 500o c and is suddenly quenched in a large oil bath for which t? = 100o c and h = 3200 w m-2 k-1. estimate the time required for the sphere to cool to 200o c and to 110o c
Answers: 1
Engineering, 06.07.2019 05:20, carmenguabaoql9kv
A200-mm wide strip 25 mm thick is fed through a rolling mill w/two powered rolls each of radius = 250 mm. the work thickness is to be reduced to 22 mm in one pass at a roll speed of 60 rev/min. the average flow stress of the work material, as it passes through the rolls is 175 mpa. the friction coefficient between rolls and work material is 0.20. 1, determine a)-if friction is sufficient for rolling. b)- if friction is sufficient: c)- calculate roll force i calculate roll torque. d)- calculate roll power.
Answers: 2
Which best describes the future of employment in the Energy career cluster?
1. Oil and gas extracti...
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