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A gas is to be stored in a spherical steel tank 6 m in diameter. The wall thickness is 23 mm.
Assume all joints to be groove-welded butt joints with a 90% joint efficiency.
Calculate the maximum safe internal gage pressure if the allowable tensile stress for the steel is 100 MPa.
a reversible carnot heat engine has 1.00 lbm of air as the working fluid. heat is received at 740 degrees f and
Suppose the machinability criterion were the cutting speed for a 10-min tool life rather than the present criterion. Compute the machinability rating for this case.
The amount of plastic deformation that can be performed during hot working is almost unlimited. Justify this statement.
an electric generator provides 500 kw and is powered by a diesel engine with a compression ratio of 19 and a cutoff
a window frame manufacturer is searching for ways to improve revenue from its triple- insulated sliding windows sold
air enters a compressor operating at steady state with a pressure of 1 bar a temperature of 20degc and a volumetric
Compare and contrast the Scrum approach to project management with conventional plan-based approaches as discussed in class. Your comparison should be based on the effectiveness of each approach forplanning the allocation of people to projects,est..
helium gas expands in an adiabatic turbine from 2 mpa and 750degc to 0.18 mpa at a rate of 1.5 kgs. assuming constant
The principle of component independence means that it ought to be possible to replace one component with another that is implemented in a completely different way. Using an example, explain how such component replacement could have undesired conse..
Determine the change in entropy for the following: Water, u=1000 kJ/kg, T=140 degree C to saturated liquid at p=3 bar. Air, T(1)= 500 degrees R, p(1)= 10 lbf/in^2 to T(2)= 900 degrees R, p(2)= 50lbf/in^2 (using air property tables and specific heat m..
a current of 0.25 amps is flowing trough a single resistor connected to a 12.00 volt battery. determine the value of
Determine the force in each member of the loaded truss. The forces are positive if in tension and negative if in compression. Discuss the effects of varying the angle of the 52 degree support surface at C.
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