Engineering, 22.11.2019 05:31 murrachl000
Submarines that descend to great depths must withstand very high external pressures. since their interiors have to be at atmospheric pressure to accommodate human life, they are like a pressure vessel except with external pressure rather than internal pressure. while there is an external hull that is hydrodynamic, it does not carry the pressure difference. instead, a cylinder shell carries the pressure difference. if seawater has a density of 1027 kg/m3, what should be the wall thickness of the cylindrical shell with a 13 m internal diameter when diving to 400 m, if the normal stress in the steel is limited to 200 mpa?
Answers: 2
Engineering, 04.07.2019 18:10
Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false
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Engineering, 04.07.2019 18:10
Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.
Answers: 1
Engineering, 04.07.2019 18:10
Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.
Answers: 1
Engineering, 04.07.2019 18:20
Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.
Answers: 2
Submarines that descend to great depths must withstand very high external pressures. since their int...
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