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A cylindrical S-950 alloy specimen is under a tensile stress test. The specimen is 975 mm long. If the tensile stress is 300 Mpa and temperature is at 730C.
What is the total elongation after 4 hour steady state operation? Assume the total of both instantaneous and primary creep elongation is 2.5mm estimate its rupture lifetime.
air at 1.0 atmosphere pressure and 77 0c enters a 5.0 mm i.d. tube with a bulk average velocity of 2.5 ms. the velocity
If the crest of a hill has a radius of curvature i = 200ft, determine the maximum constant speed at which the car can travel over it without leaving the surface of the road. Neglect the size of the car in the calculation. The car has a weight of 3500..
A turbojet is flying with a velocity of 900 ft/s at an altitude of 20,000 ft, where the ambient conditions are 7 psia and 108F. The pressure ratio across the compressor is 13, and the temperature at the turbine inlet is 2400 R.
convert the following pressures into absolute presuures.you may assume that the atmospheric pressure at the time of
a robotic rover on mars finds a spherical rock with a diameter of 10 centimeters. the rover picks up the rock and lifts
The water is initially at room temperature (293 K). Water boils at 373 K. How much energy must be added to the water by heating it in order for it to start boiling?
steam enters a diffuser operating at steady-state with a pressure of 15 psia a temperature of 300 ordmf and a velocity
consider a 1000-w iron whose base plate is made of 0.5-cm-thick aluminium alloy 2024-t6 p2771 kgm3 and cp 875 jkg c.
a solar-thermal power plant uses ideal rankine with r-134a. mass flowrate is 5000 kgs. the sat. vapor enters the
a convergent-divergent nozzle with an exit-to-throat area ratio of 1.616 has exit and reservoir pressures equal to
a power plant with a thermal efficiency of 40 is located on a river similar to fig p7.67. with a total river mass flow
a friction less piston-cylinder device initially contains 50 l of saturated liquid refrigerant-134a. the piston is free
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