A centrifugal pump is driven by a motor. The performance of the pump reveals the folowing information: Power input to the pump by the motor (kW): 0.5, 0.7, 0.9, 1.0, 1.2 Power input to the fluid by the pump (kW): 0.3, 0.55, 0.7, 0.9, 1.0 Plot the efficiency curve. The efficiency of a pump is a function of the flow rate. Assume that the flow-readings corresponding to to power data points are equally spaced.

Q: (a) flow rate, in gpm; and (b) horsepower. Assume near-radial entry flow.

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Q: Centrifugal pump: 010: Choose the correct or best alternative in the following: 1- In the…

A: Introduction: The centrifugal pump are often constructed and appropriate for liquids with a low…

Q: PLEASE BOX YOUR ANSWERS A centrifugal pump is used to pump water at 30°C (S.G. = 0.996) from a…

A: Given: diameter of pipe, d=24 mmfriction factor in pipe, f=0.022(NPSH)R=2.2+0.958v2 metersSpecific…

Q: Determine the design parameters of a centrifugal pump which will deliver 55 l/s diesel oil against a…

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Q: Consider a typical centrifugal liquid pump. For each statement, choose whether the statement is true…

A: (a) At the point of maximum volume flow rate (V̇), the net head of the pump will be zero since the…

Q: A pump is designed to deliver 9500 L/min of water at a required head of 8 m. The pump shaft rotates…

A: Calculations

Q: Explain why some pump performance curves may lead tounstable operating conditions.

A: For the unstable operating condition, the distortion blade angle, vane angle or any king of dent or…

Q: alculate the input power requirements of centrifugal pumps given below in part a and b: The…

A: Given: Discharge Q=0.2m3/sLength of the pipe (L)=44mmDiameter of the pipe (D)=1.280mEfficiency of…

Q: Give at least two reasons why turbines often have greater efficiencies than do pumps.

A: In turbines, the pressure gradient dp/dx is negative i.e., high pressure to low pressure whereas…

Q: Two centrifugal pumps, a 5-in delivering 129gpm and a 4.5 in delivering 140gpm are connected in…

A: Given data Two centrifugal pumps are present. Pump 1 delivers 129 gpm using 5 inch impeller Pump 2…

Q: B-A pump has the following parameters N=2133.5 RPM, Ns = 40 RPM, D= 37.1 cm and is used to pump…

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Q: A centrifugal pump, driven by a DC motor, running at 100 rpm delivers 500 gpm of water against a…

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Q: Consider a typical centrifugal liquid pump. For each statement, choose whether the statement is true…

A: Solution:   Note: Dear Student! As per our guidelines, we are only allowed to answer three sub-parts…

Q: (b) A small centrifugal pump is used to pump 30°C water at the rate of 6 L/s with a head of 44.54 m.…

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Q: You want to pump water at a rate of 2 m^3/s from the lower to the upper reservoir. What type of pump…

A: Given   Flow rate, Q = 2 m3/s       Speed, N = 600 rpm      Friction, f = 0.01      Length, L = 20 m…

Q: 3. Compare the graphs for pumps in series and pumps in parallel, and describe the similarities…

A: Given questions: Compare graphs for pumps in series and pumps in parallel and describe the…

Q: Determine the recommended minimum speed (rpm) for a radial flow pump operating at 0.165 m3/s of…

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Q: A centrifugal pump has d1 = 7 in., d2 = 13 in., b1 = 4 in., b2 = 3 in., 1 = 25, 2 = 40 and…

A: Find the velocity and discharge as follows.

Q: Find the specific speed of a double suction centrifugal pump delivering 1.5 m³/s against a net head…

A: Data given -  double suction centrifugal pump   Q = 1.5 m3/s  For the double suction pumps the…

Q: You are asked to calculate a rotadynamic pump with a total manometric head of 11 mss and demand flow…

A: Given Data⇒ Total manometric head(h)=11 m Flow is Q=19LitsSInce 1Lits=1000m3shenceQ=0.019m3s The…

Q: If a pump with a displacement of 16 cm/rev has an assumed overall efficiency of 90%, what speed and…

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Q: The net head delivered by a pump at a rotational speed of 1000 rpm is 10 m. If the rotational speed…

A: Given: The net head delivered by a pump is H1=10 m. The rotational speed of the pump is N1=1000 rpm.…

Q: A pump receives 60 Liters per second of water with specific volume of 0.00112 m3/kg at a head of…

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Q: A pump receives 60 Liters per second of water with specific volume of 0.00112 m³/kg at a head of…

A: Correct answer: 606.39 kW

Q: For each statement about centrifugal pumps, choose whether the statement is true or false, and…

A: (A)Radial blades are less efficient than the backward inclined blades because fluid flows into and…

Q: A small centrifugal pump is used to deliver 0.005 m³/s of water to level 2 as shown in Fig. 2.…

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Q: A pump rated at 65% efficiency is used to transport water from a large open reservoir to a point 10m…

A: Dear student,                      According to guidelines, I am allowed to answer only one problem…

Q: A small centrifugal pump is used to deliver 0.005 m/s of water to level 2 as shown in Fig.…

A: Given : The discharge of water = 0.005 m3/s The value of head , h = 30 m The head loss are neglected…

Q: A centrifugal pump discharging 900 gpm and operates at 1800 rpm against a head of 120 feet has a…

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Q: A and B are homologous pumps operating at the speed of 800rpm.Pump A has an impeller with diameter…

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Q: A small centrifugal pump is used to deliver 0.005 m/s of water to level 2 as shown in Fig. 2.…

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Q: In a Series and parallel pumps,   How to operate pumps in series and parallel? Explain briefly…

A: When a number of pumps are in parallel, the overall pump provides the net head equal to the head of…

Q: A centrifugal pump delivers 1.8m3 water against a head of 30m when rotating at 1200rpm. The diameter…

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Q: A pump has a displacement volume of 5 in3. rotates at 1000 rpm and 1000 psi. If the volumetric…

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Q: A centrifugal pump is to be placed at the bottom of a vertical shaft 350 m deep to deal with an…

A: Given data depth of shaft = 350 m In flow of water = 22 l/s = 22 x 10-3 m3/sPower rating of the…

Q: A centrifugal pump delivers 3000,000 liters per hour of water to a pressurized tank whose pressure…

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Q: A pump rated at 65% efficiency is used to transport water from a large open reservoir to a point 10m…

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Q: Determine the recommended minimum speed (rpm) for a radial flow pump operating at 0.143 m³/s of…

A: Given Data-  NsFlow rateQ=0.143m3/s Manometeric head  Hm=291m Specific speed for  radial flow pump…

Q: A centrifugal pump with an impeller diameter of 350mm and specific speed of 19.15 and requires 15 kW…

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Q: Consider the flow system sketched in Fig. The fluid is water, and the pump is a centrifugal pump.…

A: In the given zero flow rate system the required head is negative as the elevation of the outlet is…

Q: B- For each statement about centrifugal pumps, choose whether the statement is true or false, and…

A: It is a mechanical device that moves the fluid by means of rotational energy by the driven rotors…

Q: Explain the differences between pumps, compressors, and turbines.

A: In the given question, it is asked about the differences between pump, compressor and turbine.

Q: When designing an impeller for a centrifugal pump, you would consider the following materials…

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Q: In Fig. is shown a plot of pump net head as a function of pump volume flow rate, or capacity. On the…

A: The above diagram indicates the net head as a function of the volume flow rate. The point where the…

Q: A centrifugal pump with 2.3 diameter impeller running at 327 rpm delivers 7.9 m/s of water. The head…

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Q: A pump rated at 65% efficiency is used to transport water from a large open reservoir to a point 10m…

A: The first question is answered as per request. Given, Head generated by pump = H = 10 m Flow rate =…

Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.