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Question 32889

posted 1 years ago

5-93. The 5-hp pump has an efficiency of e = 0.8 and produces a velocity of 3 ft/s through thepipe at A. If the frictional head loss within the system is 8 ft, determine the difference in the waterpressure between A and B.

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Question 32892

posted 1 years ago

Launch Meeting-Zoum5-111. A fire truck supplies 150 gal/min of water to the third story of a building at B. If the frictionloss through the 60-ft-long, 2.5-In.-diameter hose is 12 ft for every 100 ft of hose, determine therequired pressure developed at the outlet A of the pump located within the truck close to theground. Also, what is the average velocity of the water as it is ejected through a 1.25-in.-diameter nozzle at B?

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Question 32887

posted 1 years ago

5-86. The pump is used with a 3-in.-diameter hose to draw water from the cavity. If thedischarge is 1.5 ft'/s, determine the required power developed by the pump. Neglect friction.losses.

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Question 32888

posted 1 years ago

*5-88. The pump discharges water at B at 0.3 ft/s. If the friction head loss between the intake atA and the outlet at B is 2 ft, and the power input to the pump is 2 hp, determine the difference inpressure between A and B. The efficiency of the pump is e = 0.8.

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Question 32890

posted 1 years ago

*5-96. Determine the power delivered to the turbine if the water exits the 400-mm-diameter pipeat 8 m/s. Draw the energy and hydraulic grade lines for the pipe using a datum at point C.Neglect all losses.

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Question 32891

posted 1 years ago

"5-104. The flow of air at A through a 200-mm-diameter duct has an absolute inlet pressure of180 kPa, a temperature of 15°C, and a velocity of 10 m/s. Farther downstream a 2-kW exhaustsystem increases the outlet velacity at B to 25 m/s. Determine the change in enthalpy of the air.Neglect heat transfer through the pipe.B

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Question 32886

posted 1 years ago

5-81. Determine the kinetic energy coefficient a if the velocity distribution for laminar flow in asmooth pipe is defined by u = Umax(1 - (r/R)).%3D

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Question 3242

posted 1 years ago

10.2-39 The following vapor-liquid equilibrium data havebeen reported' for the system water (1) + 1,4-dioxane (2) at 323.15 K.
Compute the activity coefficients for thissystem at each of the reported compositions.a.
b. Are these data thermodynamically consistent?
c. Plot the excess Gibbs energy for this system asa function of composition.

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Question 934

posted 1 years ago

A stream of air enters a 10.0-cm ID pipe at a velocity of 30.0 m/s at 25°C and 1.75bar (abs). At a point downstream, the air flows through a 5.00 cm ID pipe at 50°C and 1.50bar (abs). What is the velocity of the gas at this point?

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Question 720

posted 1 years ago

Water is sprayed radially outward over 180° as indicated in Fig. P5.67. The jet sheet is in the horizontal plane. If the jet velocity at the nozzle exit is 20 ft/s, determine the direction and magnitude of the resultant horizontal anchoring force required to hold the nozzle in place.
5) 5.63

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