Engineering, 06.07.2019 05:10 aaronolivera200161
Air contained in a piston-cylinder assembly undergoes a process from an bar. the initial pressure of 1 bar and temperature of 400 k to a final pressur initial volume of air is 0.2 m3. the process is described by pv- constant. assuming ideal gas behavior and neglecting kinetic and potential energy effects, determine the a)-mass of air, in kg b)-work for the process, in kj c)-heat transfer for the process, in kj pts
Answers: 1
Engineering, 03.07.2019 14:10
If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.
Answers: 3
Engineering, 04.07.2019 18:20
Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false
Answers: 2
Engineering, 04.07.2019 18:20
An engine runs on the ideal diesel cycle. the cycle has a compression ratio of 20 and a cutoff ratio of 2. the highest temperature in the cycle is 1200 k. if the heat into the system is 300 kj/kg of working fluid and using variable specific heats determine the work produced per mass of working fluid
Answers: 3
Engineering, 04.07.2019 19:10
Asteel wire of 2 mm diameter is fixed between two points located 2 m apart. the tensile force in the wire is 250n, if its density of steel is given by 7830 kg/m3 the fundamental frequency of vibration hz? ?
Answers: 3
Air contained in a piston-cylinder assembly undergoes a process from an bar. the initial pressure of...
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