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The measured shaft torque on the turbomachine shown in Fig. P12.3 is -60 N m when the absolute velocities are as indicated. Determine the mass flowrate. What is the angular velocity if the magnitude of the shaft power is 1800 N m/s? Is this machine a pump or a turbine? Explain.
You have been selected to assist the structural engineer for a bridge replacement project. Your task is to design the size of the footing for an interior bridge pier, based on the allowable stress design method.
A wood beam reinforced by an aluminum channel section is shown in the figure. The beam has a cross section of dimensions 150 mm by 250 mm, and the channel has a uniform thickness of 6 mm.
a power generator burns natural gas consisting of 30 ethane 60 methane and the balance nitrogen. the gas undergoes
the lower yield point for an iron that has an average grain diameter of 5 x10-2 mm is 135 mpa 19500 psi. at a grain
A pump fitted with 50mm bore ball bearings uses oil whose viscosity ranges from 100cSt at cold pump start-up to 7.5Cst when running at maximum speed and load. If these viscosities are the safe limits for the oil, specify the maximum start-up speed an..
a piston-cylinder device initially contains 50 l of liquid water at 40 degrees c and 200 kpa. heat is transferred to
The moment of inertia I2 for strut-2 is twice the moment of inertia I1 for strut-1. If P1 and P2 are the critical buckling loads for strut-1 and strut-2, respectively, how are P1 and P2 related?
consider fully developed condition in a circular tube with constant surface temperature ts lt tm. determine whether a
determine the incidence that corresponds to the blade stalling.b. Use Carter's deviation correlation to estimate the required metal exit angle given that aparabolic arc camber line is employed with maximum camber at 40% chord. (Note thatsome itera..
a 3-diameter 5-long gas-piston assembly contains air at stp. stp standard temperature and pressure conditions 300k and
An air cushion vehicle is supported by forcing air into the chamber created by a skirt around the periphery of the vehicle as shown in Fig. P3.106. The air escapes through the 1.7-in. clearance between the lower end of the skirt and the ground (or wa..
1. Air at po 5 1.4 bar, To 5 280 K expands isentropically through a converging nozzle and discharges to the atmosphere at 1 bar. The exit plane area is 0.0013 m2.
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