Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Practice Final Exam
• A large rocket engine delivers hydrogen at 1500°C and 3 MPa to a nozzle with an exit pressure equal to the ambient pressure of 54 kPa. If the thrust of the rocket is 2 MN what is the exit velocity and mass flow rate of hydrogen? (use k = 1.41 and R = 4124 J/kgK)
• Air, with a stagnation condition of 450 K and 250 kPa flows through a nozzle. At the location where the cross-sectional area equals 15 cm2 there is a normal shock. If the mass flow rate is 0.4 kg/s estimate the Mach number and the stagnation pressure after the shock.
• A 5-mm capillary tube is used as a viscometer. When the flow rate is 0.71 m3/hr, the measured pressure drop is 375 kPa/m. Estimate the viscosity of the fluid? Is the flow laminar? Can you estimate the density?
• Hydrogen at 20 °C and 1 atm needs to be pumped through an 85 m duct with an aspect ratio of 5:1. The flow rate is 0.7 m3/s and the pressure drop cannot exceed 80 Pa. What should the height and width of the duct be?
for your sink at home the flow rate in is 5000 unitshr. accumulation is 2500 units. what is the accumulation rate if
a reversible power cycle operates at steady state between a thermal reservoir at 400 c and another one at 200 c. this
to cool a summer home without using a vapor-compression refrigeration cycle air is routed through a plastic pipe k0.15
A vertical piston-cylinder device, which is insulated, initially contains 15 kg of water, 9 kg of which is in the vapor phase. The pressure inside the cylinder is maintained constant at 0.3 MPa by mass of the piston. Now steam at 0.8 MPa and 500 °C i..
the tank shown has a 180 mm inside diameter and a 12 mm wall thickness. knowing that the tank contains compressed air
Consider a Carnot heat pump cycle executed in a steady-flow system in the saturated liquid-vapor mixture region of R-134a. The R-134a is flowing at a rate of 0.264 kg/s. It is known that the maximum absolute temperature in the cycle is 1.25 times the..
A skydiver bails out of an airplane at 2000m above mean sea level but cannot make his parachute work at first. The skydiver weighs 70 kg and is 1.7m tall. Determined the approximate velocity at which the skydiver will fall toward the earth. Base your..
Describe the methods used. Show a simple schematics sketch of the joining method and briefly describe the process. Compare the advantages and disadvantages of each joining method.
Assume the vessel contains 1 mole of O2when there is no dissociation. Calculate mole fraction of O2 and O for the following conditions. Comment on how pressure and temperature impacts equilibrium composition and if the changes are consistent with Pri..
Determine if the shaft has infinite fatigue life. If not, determine the number of cycles to failure. Also determine the safety factor for first cycle yield and draw a free body diagram, shear and moment diagrams, and graph the loads on the shaft..
a plate fin heat exchanger for truck is designed to cool high temperature and high pressure oil using high pressure
you are asked to design a solid circular shaft of minimum cost that is 1.3 m long and has to twist less than 3 degrees
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd