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Ammonia vapor flows through a valve. It enters the valve at a pressure of 8 bar and a temperature of 120C and after going through a throttling process it exits at a pressure of 3.5 bar. What is the temperature of the vapor exiting the valve in C?
Determine the force required to lift the block of stone that weighs 200 lb. The rollers are frictionless and the static coefficient between all other surfaces is 0.3. Neglect the size and weight of the wedges.
A bridge has cylindrical piers 1 m in diameter and spaced 15 m apart. Downstream of the bridge where the flow disturbance from the piers is no longer present, the flow depth is 2.9 m and the mean velocity is 2.5 m/s.
what is the difference between factor of safety in rankine & coulomb in overturning, sliding and bearing capasity ?
The magnetic north azimuth of a line is 128 degrees 27' while the magnetic declination is 3 degrees 30'E. What is the astronomic azimuth of the line (in decimal degrees)?
The design discharge is 9.5 m^3/sec and the inlet will be submerged but not the outlet. Determine the depth that will result upstream (above the invert) during the design flood event.
Determine the value of Po, as a funciton of H, for these two investment alternatives to be equivalent at an interest rate of i=15% per year.
A tangent section of highway has a -1.0% grade and ends at station 0+1450and elevation 25m. It must be connected to another section of highway that has a -1% grade and that begins at station 1+345 and elevation 40m.
A stainless steel (304) bar with a cross section of 0.2" x 0.4" is cut to a length of 30" and placed between two immovable walls at a temperature of 40 degrees F. The operating temperature for the bar is 200 degrees F.
Assume the plane is flying at an altitude of 32,810 ft (10 km), where the temperature is -8 C and the pressure is 250 mb. The Pitot-static tube measures a piezometric pressure difference corresponding to 1.206 psi. What is the airspeed in both m/s..
A beryllium copper wire having diameter of 1-50 mm and length of 40mm is used as a small torsion bar in an instrument. determine what angle of twist would result in the wire when it is stressed to 250 mpa.
A dry quartz sand has a unit weight of 100 pcf. What is the soil's unit weight when the degree of saturation is 75% if Gs = 2.66
The allowable shearing stress is 15 ksi in the steel rod AB and 8 ksi in the brass rod BC. Knowing that the torque of magnitude T=10 kip * in. is applied at A, determine the required diameter of a) rod AB, b) rod BC.
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