Engineering, 29.07.2020 17:01 lillovecandy
A displacement transducer has the following specifications: Linearity error: 0.25% reading Drift: 0.05%/C reading Sensitivity error: 0.25% reading Excitation: 10β25 V dc Output: 0β5 V dc Range: 0β5 cm The transducer output is to be indicated on a voltmeter having a stated accuracy of 0.1% reading with a resolution of 10 mV. The system is to be used at room temperature, which can vary by 10C. Estimate an uncertainty in a nominal displacement of 2 cm at the design stage. Assume 95% confidence.
Answers: 3
Engineering, 03.07.2019 15:10
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
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Engineering, 04.07.2019 18:20
Steam enters a converging nozzle at 3.0 mpa and 500Β°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
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Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
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Engineering, 04.07.2019 18:20
Aheavily insulated piston-cylinder device contains 0.02 m3 of steam at 300 kpa and 200 Β°c. 1.2 mpa. d this process. team is now compressed in a reversible manner to a pressure of etermine the entropy change and the work done on the steam during this process
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A displacement transducer has the following specifications: Linearity error: 0.25% reading Drift: 0....
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