Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780132558921
Author: Robert L. Mott, Joseph A. Untener
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 7.6PP
A test setup to determine the energy loss as water flows through a valve is shown in Fig 7.15 Calculate the energy loss if
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10.) A horizontal pipe gradually reduces from 300 mm diameter section to 100 mm
diameter section. The pressure at the 300 mm section is 100 kPa and at the 100 mm
section is 70 kPa. If the flow rate is 15 liters/sec of water, compute the head lost
between the two sections.
Answer: 2.872m
Subject: Fluid Mechanic
Lesson: Relative Equilibrium of Liquids
Fundamentals of Fluid Flow
Given below are pipe lengths, sizes, and connections. All pipes have a friction factor of 0.020. If the flow from Ato B is 5 cfs.
a) Determine the head loss in feet in PIPE 1 and PIPE 2
b) Determine the head loss in feet in PIPE 5
c) Determine the flow in the upper branch pipe Q2 in cubic feet per second
d) Determine the total head loss in feet between the inlet A and the outlet D
Oil of specific gravity 0.8 flows through a pipe of 0.25 m diameter. An orifice of 0.1 m diameter is fitted to the pipe to measure the flow rate. A mercury manometer fitted across the orifice records a reading of 0.8 m. Calculate the coefficient of discharge of the orifice meter if the flow rate measured by it is 0.082 m3/s.
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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- HYDRAULICS Benzene flows through a 100 mm diameter pipe at a mean velocity of 3 m/s. Find discharge in liter per second.arrow_forwardWater at 60°F is pumped from a reservoir to the top of a mountain through a 6-in. Schedule 120 pipe at an average velocity of 12 ft/s. The pipe discharges into the atmosphere at a level 3,000 ft above the level in the reservoir. The pipeline itself is 4,500 ft long. If the overall efficiency of the pump and the motor driving it is 70 percent and the cost of electric energy to the motor is 4 cents per kilowatt hour, what is the hourly energy cost for pumping this water?arrow_forwardA pump test reports the section pressure at a pump inlet to be 20 kPa below atmosphere. The discharge pressure at a point 1,025 mm above the inlet is 520 kPa. If the volume flow rate of water in the system is 87 L/min, calculate the power, in Watts, delivered by the pump to the fluid.arrow_forward
- A 2-inch diameter hose is conveying water at a flow rate of 20 gpm from point A to point B. The pressure at point A is 40 psi. The elevation at point A is 20 ft above mean sea level (MSL) and the elevation at point B is 18.5 ft above MSL. The hose is 100 ft long. Determine (a) pressure at point B if there is no head loss, (b) pressure at point B if head loss is 1 inch per foot of pipe length. (c) Compare pressure at B with and without headloss - what impact does head loss have?arrow_forward1.Find the diameter of a pipe of length 3000 m when the rate of flow of water through the pipe is 300 litres/s and the head lost due to friction is 5 m. Take the value of C = 50 in Chezy’s formula.arrow_forwardWater is transported for 500 m in a 4 inch ductile iron pipe (coated) with a flow rate of 0.04 m3/s. Calculate the pressure drop over the 500 m length of pipe. (Calculate the friction factor f using the formula given in class notes/textbook, and not by using the Moody chart).arrow_forward
- Question 8 Two reservoirs are connected by a pipe whose total length is 360m.From the upper reservoir the pipe is 300mm in diameterfor a length of 150m and the remaining 210m is 450mm in diameter.The difference in water levels between the two reservoirs are 8m.Take f=0.006 for the smaller pipe and f=0.005 for the larger pipe.If all the changes in pipe sections are sharp and sudden, calculate the flow rate which can be delivered.arrow_forwardA pitot-static tube is used to measure the speed of air at standard conditions at a point in a flow. The manometer deflection in millimeters of water is measured as 63 mm. Determine the speed of air at that pointarrow_forwardA Venturi Tube develops low pressure on its throat, which can suck water from a deposit located under it. Assuming permanent flux with no losses, calculate the V1 necessaryto suck water from the deposit to the throat. D1 = 15 [mm]; D2 = 37 [mm]; h = 163 [mm]; pa = 101325 [Pa] (atmospheric pressure). Express the solution in [m/s]arrow_forward
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