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Servovalves have at least two stages. What are the primary roles of the first and second stages of a two stage servovalve?
measure the length of the beam. what is the torque calibration coefficient? 7 explain any anomalies - differences from
A house is maintained at 1 atm and 24 C and warm air inside a house is forced to leave the house at a rate of 150 m^3/h as a result of outdoor air at 5C infiltrating into the house through the cracks. Determine the rate of net energy loss of th..
In an experiment to determine drag, a circular cylinder of diameter d was immersed in a steady two dimensional incompressible flow. Measurements of velocity and pressure were made at the boundaries of the control surface shown. The pressure was found..
One kilogram of air as an ideal gas executes a Carnot power cycle having a thermal efficiency 50%. The heat transfer to the air during isothermal expansion is 50 kJ. At the end of the isothermal expansion, the pressure is 574 kPa and the volume is..
A closed rigid tank of volume 3m^3 contains a two-phase liquid-vapor mixture of H2O at 110C with a quality of 34.5%. The tank then receives energy by heat transfer until the water becomes a saturated vapor. Determine the final pressure and temperatur..
A river has a cross-section that is approximately a rectangle 10-ft deep and 50-feet wide. The average velocity is 1 ft/s. How many gallons per minute pass a given point? What is the average velocity (assuming steady flow) at a point downstream, wher..
A piston-cylinder device contains 1.0 kg of nitrogen gas at 150 kPa and 40oC. The gas is now compressed slowly in a polytropic process during which PV1.3 is constant. The process ends when the volume is reduced by one-half. Determine the entropy chan..
water vapor is cooled in a closed rigid tank from 520 c and 100 bar to a final temperature of 270 c. determine the
a system of propane and n-butane exists in two phase vapor liquid equilibrium at 10 bar and 323 k. the mole fraction
You want to know if you should replace the existing machines, which has a Cpk of 1.0. You decide to determine the Cpk for the new machines and make a decision on that basis.
an air conditioner based on the ideal vapor-compression refrigeration cycle uses r134a as the working fluid. states
a piston-cylinder assembly of initial volume of 0.6 m3 contains h2o at 500 kpa and 280oc. the system is cooled in a
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