Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780132558921
Author: Robert L. Mott, Joseph A. Untener
Publisher: PEARSON
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Chapter 7, Problem 7.9PP
In Problem 7.815 (Fig. 7.17), if the left-hand tank is also sealed and air pressure above the water is
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Chapter 7 Solutions
Applied Fluid Mechanics (7th Edition)
Ch. 7 - A horizontal pipe carries oil with a specific...Ch. 7 - Water at 40 F is flowing downward through the...Ch. 7 - Find the volume flow rate of water exiting from...Ch. 7 - A long DN 150 Schedule 40 steel pipe discharges...Ch. 7 - Figure 7.14 shows a setup to determine the energy...Ch. 7 - A test setup to determine the energy loss as water...Ch. 7 - The setup shown in Fig. 7.16 is being used to...Ch. 7 - A pump is being used to transfer water from an...Ch. 7 - In Problem 7.815 (Fig. 7.17), if the left-hand...Ch. 7 - A commercially available sump pump is capable of...
Ch. 7 - A submersible deep-well pump delivers 745 gal/h of...Ch. 7 - In a pump test the suction pressure at the pump...Ch. 7 - The pump shown in Fig. 7.19 is delivering...Ch. 7 - The pump in Fig. 7.20 delivers water from the...Ch. 7 - Repeat Problem 7.14, but assume that the level of...Ch. 7 - Figure 7.21 shows a pump delivering 840L/min of...Ch. 7 - Figure 7.22 shows a submersible pump being used to...Ch. 7 - Figure 7.23 shows a small pump in an automatic...Ch. 7 - The water being pumped in the system shown in Fig....Ch. 7 - A manufacturer's rating for a gear pump states...Ch. 7 - The specifications for an automobile fuel pump...Ch. 7 - Figure 7.26 shows the arrangement of a circuit for...Ch. 7 - Calculate the power delivered to the hydraulic...Ch. 7 - Water flows through the turbine shown in Fig....Ch. 7 - Calculate the power delivered by the oil to the...Ch. 7 - What hp must the pump shown in Fig. 7.30 deliver...Ch. 7 - If the pump in Problem 7.26 operates with an...Ch. 7 - The system shown in Fig. 7.31 delivers 600 L/min...Ch. 7 - Kerosene (sg = 0.823 ) flows at 0.060m3/s in the...Ch. 7 - Water at 60 F flows from a large reservoir through...Ch. 7 - Figure 7.34 shows a portion of a fire protection...Ch. 7 - For the conditions of Problem 7.31 and if we...Ch. 7 - In Fig. 7.35 kerosene at 25 F is flowing at 500...Ch. 7 - For the system shown in Fig. 7.35 and analyzed in...Ch. 7 - Compute the power removed from the fluid by the...Ch. 7 - Compute the pressure at point 2 at the pump inlet.Ch. 7 - Compute the pressure at point 3 at the pump...Ch. 7 - Compute the pressure at point 4 at the press...Ch. 7 - Compute the pressure at point 5 at the press...Ch. 7 - Evaluate the suitability of the sizes for the...Ch. 7 - The portable, pressurized fuel can shown in Fig....Ch. 7 - Professor Crocker is building a cabin on a...Ch. 7 - If Professor Crocker's pump, described in Problem...Ch. 7 - The test setup in Fig. 7.39 measures the pressure...Ch. 7 - If the fluid motor in Problem 7.44 has an...Ch. 7 - A village with a need for a simple irrigation...Ch. 7 - As a member of a development team for a new jet...Ch. 7 - A fire truck utilizes its engine to drive a pump...Ch. 7 - A home has a sump pump to handle ground water from...Ch. 7 - In Problem 6.107 an initial calculation was made...Ch. 7 - A creek runs through a certain part of a campus...Ch. 7 - A hot tub is to have 40 outlets that are each 8 mm...Ch. 7 - A large chipper/shredder is to be designed for use...
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- A centrifugal pump driven by a 160-hp motor rotating at 2400 rpm is used to pump 70°F water in a manufacturing plant. The pump operates against a head of 100 ft and has an efficiency of 70%. What size of pump should be used? Select one: O a. 8.5 in O b. 14.5 in O c. 11.5 in O d. 16.5 inarrow_forwardA single-stage centrifugal pump has an impeller speed of 1750 rpm. If the flow rate of water is 60 gal/min, what is the expected head ?arrow_forwardA centrifugal pump has NPSH required of 25 ft. The water temperature is 90 deg. Fahrenheit and the friction loss at suction is 1.4 ft. The pump takes water from an open tank below the pump centerline. (Note: @90 deg. Fahrenheit: Psat = 0.69 psia and specific volume = 0.01608 ft3/lb). Determine the maximum static elevation in feet at the suctionarrow_forward
- Seven hundred gpm of water are being discharged by a centrifugal pump 5 ft. above the pump inlet. The inlet pressure is 4-in Hg above atmospheric and the discharge pressure is 29 psia. Assume the pump input is 8 hp, if the pump has an 8-inch diameter inlet and a 4-inch diameter discharge: 1.How much pressure loss in the pump? a. 28.4 ft-lbf/lb b. 5 ft-lbf/lb c. 4.7 ft-lbf/lb d. 38.1 ft-lbf/lb 2. How much is the velocity loss in the pump? a. 28.4 ft-lbf/lb b. 45.3 ft-lbf/lb c. 4.7 ft-lbf/lb d. 38.1 ft-lbf/lb 3. If the pump speed is increased from 1600 to 2400 rpm, what will be the new net flow rate in the pump? a. 800 gpm b. 1050 gpm c. 1400 gpm d. 1965 gpm 4. Find the new brake horse power if the pump speed in increased from 1600 to 2400 rpm. a. 64 hp b. 20.25 hp c. 8 hp d. 30.375 hparrow_forwardThe characteristics of a particular pump are shown in the image below. Calculate the head and discharge one would get at maximum efficiency if the size was doubled and the speed was halved.arrow_forwardFor a given centrifugal pump, if the speed of rotation of the impeller is cut in half, how does the total head capability change?arrow_forward
- In order to meet the stated goal of delivering 4 gallons per minute at a height of 670 meters, a single pump must have a maximum flow rate of 40 gpm. How many stages are needed if the speed cannot exceed 1352 rpm?arrow_forwardA centrifugal pump has NPSH required of 21 ft. The water temperature is 90oF and the friction loss at suction is 1.2 ft. The pump takes water from an open tank below the pump centerline. Determine the maximum static elevation at suction. (Note: @90oF: Psat = 0.69 psia and = 0.01608 ft3/lb).arrow_forward1.calculate the pressure in a hydraulic system if the pump delivers 180 liters /min, and the engine has a power capacity of 75kw.2.The engine has a given capacity of 60kw, calculate the power requirement in a hydraulic system tool , to know that the engine is capable to support the hydraulic system if a pump delivers 110 liters per minute and the pressure is 227bar.arrow_forward
- A "spa tub" is to be designed to replace bath tubs in reno- vations. There are to be 6 outlet nozzles, each with a di- ameter of 12 mm, and each should have an outlet velocity of 12 m/s. What is the required flow rate from the single pump that supplies all of these nozzles? If there is one suction line leading to the pump, what is the minimum diameter to limit the velocity at the inlet of the pump to 2.5 m/s?arrow_forwardUse the Goulds Pump Selection System to find a pump capable of delivering at least 500 gpm against an elevation gain of 120 ft. Use 150 ft as the pump head to be safe.arrow_forwardA system requires delivery of water at 40 l/s at a head of 12 ft. An axial pump is available. What rotational speed do you recommend running the pump at?arrow_forward
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