![subject](/tpl/images/cats/User.png)
Engineering, 14.12.2019 05:31 tciara788
Air at 25c, 100kpa and ait at 50 c 200 kpa at 1: 1 volume ratio are mixed inside an adiabatic compressor to 55c and pushed through an isothermal nozzle with and inlet area a quarter size of the outlet area and reaching 10m/s at 300 kpa. how much work is required if we want to get 5kg of this mixture. assume fluid velocity is negligible before the compressor and the gases are ideal with constant specific heats.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Engineering
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)
Answers: 3
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:20
The characteristic roots of a dynamic system are: 1.7920 1.8160 i, -1.7920 1.8160 i, -0.4160 what is the order of this system? what are the settling time and damping ratio of the system?
Answers: 3
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 19:10
An electric kettle is made out of stainless steel, weighs two pounds (when empty) and is equipped with a heating element that consumes 2 kw of electricity. assuming that the water and the kettle are at the same uniform temperature at any moment of time, calculate the shortest possible time to bring 2 quarts of water from room temperature to the onset of boiling
Answers: 2
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 19:20
Determine (a) the maximum thermal efficiency of reversible power cycles operating between a hot reservoir at 1000°c and a cold reservoir at 200°c and (b) the maximum cops for reversible refrigeration and heat pump cycies, respectively, between 28°c and 14°c.
Answers: 1
You know the right answer?
Air at 25c, 100kpa and ait at 50 c 200 kpa at 1: 1 volume ratio are mixed inside an adiabatic compre...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 01.02.2021 07:10
![question](/tpl/images/cats/himiya.png)
Chemistry, 01.02.2021 07:10
![question](/tpl/images/cats/pravo.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 01.02.2021 07:20
![question](/tpl/images/cats/fizika.png)
Physics, 01.02.2021 07:20
![question](/tpl/images/cats/biologiya.png)
Biology, 01.02.2021 07:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.02.2021 07:20
![question](/tpl/images/cats/mat.png)
Mathematics, 01.02.2021 07:20
![question](/tpl/images/cats/mat.png)
Mathematics, 01.02.2021 07:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 01.02.2021 07:20
![question](/tpl/images/cats/istoriya.png)
History, 01.02.2021 07:20