A pump with an impeller diameter of 300 mm running at a speed of 2950 rev/min delivering 450 L/min of water at a head of 350 kPa is goingto be replaced by a geometrically similar spare pump running at a speed of 1450 rev/min delivering the same flow rate and head. Determinethe impeller size of the spare pump and the percentage increase (decrease) of power required for the spare pump.OL. 380.1 mm; a decrease of 61.33%OI., 380.1 mm; an increase of 38.77%I. 147.5 mm; an increase of 3.4%IV. 210.3 mm; a decrease of 83.1%

Answered: Image /qna-images/answer/b37360c9-cce2-49c0-b367-c9e232e43965.jpg

Answered: of 300 mm running at a speed of 2950…

of 300 mm running at a speed of 2950 rev/min delivering 45 similar spare pump running at a speed of 1450 rev/min deliv hp and the percentage increase (decrease) of power required

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: Show Isometric View. Use Dimlinear for measurement 52 11 11 18 11 TOP VIEW 40 32 Ø16 - 36 32 Ø18 R16...

Q: A pump with a 400 mm diameter suction pipe and a 350 mm diameter is to deliver 20,000 L/min of 15.6d...

A: Given:d1=400 mmd2=350 mmQ=20,000 L/min =20 m3/minz1=-7.5 cmP1=127 mmHg vacuumz2=45 cmP2=75 kPa

Q: A device's outer cylinder diameter is 7" and its distance from outer cylinder to the inner cylinder ...

Q: are designing a driveshaft for a motor from a material with G = 15,000 ksi. The specifications for t...

Q: A pump draws 20 L/s of water from reservoir A to reservoir B. Assuming f = 0.013 for all pipes, comp...

A: Given:Q=20 L/s= 20*10-3 m3/sf=0.013L1=500 mL2=200 mmz1=15 mL2=1200 mD2=150 mmz2=60 m NOTE: According...

Q: 8. Two 1.75-in thick rubber pads are bonded to three steel plates to form the shear mount in the fig...

A: Answer: The displacement of the middle plate is 0.1381 in.

Q: Water flows through the pipe system as shown, mass flowrate A divides equally into B and C, and disc...

Q: A venturi tube is used to determine the airspeed at the throat/test section. During the test, a rais...

A: To solve this problem we have used: - Bernoulli equation - Equation of continuity - hydrostatic pres...

Q: A cylindrical bar shown in the figure below has axial loads applied as illustrated Calculate the nor...

Q: In the figure below, a crane is supported by two cables of cross-sectional area equal to 3.04 cm2. F...

Q: determine the percentage decrease in the volume of water.

A: determine the percentage decrease in the volume of water.

Q: What are the advantages of a self-adjusting clutch?

Q: le value of the clamping for stress in the 5-mm diameter ssible value of the applied loa ntained?

Q: device's outer cylinder diameter is 5" and its distance from outer cylinder to the inner cylinder is...

Q: Segment AB of the bar is a tube with an outer diameter of 1.5 in, and a wall thickness of 0.125 in. ...

Q: Determine the required diameters of the pins at A and B and of the rod, at A, of the angle-lever mec...

Q: Exercise 8: We launch, on an inclined plane and with a speed V parallel to the line of greatest slop...

A: Since we only answer up to 3 subparts so we will answer first 3. Please resubmit the question by spe...

Q: e plate which ma ed to 40MPa and

Q: Find the mass density of helium, in kg/m^3, at a temperature of 39.2 degF and a pressure of 184 kPa ...

A: As per given Temperature =39.2 degF Pressure =184 kpa Atmosphere pressure =101.92 kpa We have to de...

Q: must show all pertinent solutions and the illustration that supporting the answer. Please list the g...

A: Given:μ=0.14+0.xyμ=0.14+0.68μ=0.82

Q: 7. At the beginning of compression in an ideal air standard Diesel cycle, the compression ratio is 1...

Q: Using the Newmark method determine and plot in Excel the displacement, velocity and acceleration res...

Q: Determine transfer function of Figure 1.

A: NEED TO DETERMINE THE TRANSFER FUNCTION.

Q: A wind tunnel with a 7/1 inlet and test ratio. The test section is at standard sea-level conditions ...

Q: a) Create a sketch of the Figure 2 as below (.ipt) b) Extrude the sketch in a) by a thickness of 1mm...

A: According to the details provided in the question, we need to DRAW the figure. i am using the Soli...

Q: For part d, we introduce a wall at cross-section A. Determine the absolute maximum shear stress on t...

Q: Identify what is the system in this problem and write the general energy balance equation (no need t...

Q: What is the Maximum moment in kN-m. %3D Given: w = 44, a = 4, b = 4, and c = 1. w kN/m Stomt В am b ...

Q: What is his weig

Q: P3.82 The model car in Fig. P3.82 weighs 17 N and is to be accelerated from rest by a 1-cm-diameter ...

Q: A stepped shaft ACB having solid circular cross sections with two different diameters is held agains...

Q: An orificemeter with orifice diameter 12 cm is inserted in a pipe of 20 cm diameter. The pressure di...

Q: Determine the pressure difference between the inside and outside of the 0.13 mm diameter air bublle ...

Q: In a pumping system handling water, the level in the suction tank is 3.2m below the pump shaft cente...

A: NOTE:- As per our company guidelines we are supposed to answer only one question. Kindly repost othe...

Q: in meter per second at a distance y meter above the plate. Determine the shear stress at y=0 and y=1...

A: Find the wall shear stress at y = 0 and y = 15 cm

Q: 2 litre of petrol weighs 14n. calculate the specific weight, density, specific volume and specific g...

Q: Figure 1 of 1 A 6 in. 4 in. kg = 200 lb/in. B kc = 100 lb/in.

A: Given Data: Mass of the block A, m=48 lb

Q: The 2.4-Mg car increases its speed uniformly from rest to 22 m/s in 38 s up the inclined road. (a) D...

Q: 1. In each case, establish a position vector from point A to point B.

A: To determine the position vector from A to B.

Q: Q1/ what is the effect of friction factor on the pumping power?

Q: Water is flowing in a pipe with varying cross-sectional area, and at points the water completely fil...

Q: roblem 2: The following solid shaft is loaded as shown in the figure. The 100 Nm/m distributed torqu...

Q: 4. Given the forces shown, determine the resultant moment about point A. 2 Ib

Q: A soap bubble with a diameter of 2.28" is to be enlarged by blowing air into it. If the surface tens...

Q: Refrigeration Engineering. A 30% ethylene glycol solution in water is gradually cooled. If the antif...

Q: 1. A wheel tractor has a 200 HP engine. Calculate the available rimpull of this tractor if it is ope...

A: 1. Given: Power = 200 HP speed = 12 km/hr efficiency = 0.85

Q: find the actual and isentropic temperatures, and the change in specific internal energy across the t...

A: find the actual and isentropic temperatures, and the change in specific internal energy across the t...

Q: QBS company wishes to replace its current equipment that was purchased 8years ago with the newer tec...

A: Calculate the future worth for system A using the given data. Year Cost(C) ($) Salvage(S) ($) ...

Q: Modern ignition cables contain fiber cores that act as in the secondary circuit to cut down on radi...

A: The ignition's job is to distribute the electric current from the transformer to the spark plugs ...

Q: A crane is supported by two cables with a cross-sectional area of 3.04 cm2 each. Determine the amoun...

A: A=3.04cm2 = 304mm2 Assume P=20KN , Mass of the boom = 450kg

Concept explainers

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.

Question

A pump with an impeller diameter of 300 mm running at a speed of 2950 rev/min delivering 450 L/min of water at a head of 350 kPa is going
to be replaced by a geometrically similar spare pump running at a speed of 1450 rev/min delivering the same flow rate and head. Determine
the impeller size of the spare pump and the percentage increase (decrease) of power required for the spare pump.
OL. 380.1 mm; a decrease of 61.33%
OI., 380.1 mm; an increase of 38.77%
I. 147.5 mm; an increase of 3.4%
IV. 210.3 mm; a decrease of 83.1%

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

4. A centrifugal pump delivers water to a height of 22 metres at a speed of 800 r.p.m. The velocity of flow is constant at a speed of 2-0 m/s and the outlet vane anglc is 45°. If the pump discharges 225 litres of water per second, find the diameter of the impeller and width of the impcller at oudet. (Ans. 375 mm: 95 mm)
a pump is delivering 160 liters per sec of water using an impeller diameter of 240 mm and operating at a speed of 1800 rpm. if the speed held constant and the impeller diameter is change to 203.2 mm, what is the new dischange og the pump in liters per second
A centrifugal pump outer diameter equal to two times the inner diameter and running at 1200 rpm works against a total head of 75 m the velocity of the flow through the impeller is constant and equal to 3 m/s. The vane are set back at an angle of 30° at outlet. If the outer diameter of the impeller is 600 mm and width at out let is 50 mm, determine; 1- Vane angle at inlet. 2- Work done per second by imepller.
Determine the least number of stages for a multi-stage pump to deliver 80 L/s against a total head of 240m when running at 1450 rpm if the specific speed (per stage) must not be less than 670. Select the correct response: 6. 3. 4. 7. 8
A centrifugal pump develops a head of 16.8 m at 1500 rpm. Rated capacity is 0.015 m3/s. Determine the size of the impeller in mm if Øe=0.45.
- A centrifugal pump with an impeller diameter of 350mm and specific speed of 19.15 and requires 15 kW to discharge 2.4 m³ /min of water, and runs at 1800 rpm. Determine the discharge, head and power required when the pump runs at 2400 rpm. The same discharge could be obtained by altering the impeller diameter without changing the rotational speed for this case find the new diameter of the impeller the head and the power required.
Two geometrically similar pumps are running at the same speed of 1000 rpms One pump has impoller diameter of 300 mm and lift water at the rate of 0.02 m3 against a head of 15 m Determine the head and impeller diameter of the other pump to deliver half the discharge.
Calculate the inlet blade velocity (m/s) of the Francis turbine that receives water under net head of 31 m and the speed ratio is 0.85. Assume the gravitational acceleration of 9.81m/s². Answer to 2 decimals
A radial bladed centrifugal pump running at 1440 rpm is to deliver 30 l/min of water against a head of 20 m. Assuming flow velocity as 3 m/s. Determine the diameter and width of the impeller at the outlet.
Determine the number of the impellers required for a multi stage pump to lift 4200 litres/minute against a total head of 185 m, at a speed of 750 r.p.m. The specific speed is not to exceed 700 r.p.m.
A centrifugal pump develops a head of 90 ft at 1750 rpm. Rated capacity is 1,000 gpm. Determine the size of the impeller in inches if Øe=0.45.
Choose the correct answer of the following questions 2. A siphon used to empty a tank consists essentially of a pipe with its summit 0.5 m above the water surface of the tank and its outlet at 2.0 m below the summit. Neglecting friction and other losses. the velocity in the siphon is: a. 4.4 m/sec b. 5.4 m/sec C.3.1 m/sec d. 3.8 m/sec 3. A 20 cm diameter open cylindrical container contains Kerosene (relative density = 0.80) to a height of 20 cm. It is rotated about a vertical axis coinciding with the axis of the cylinder. If the bottom of the cylinder at the axis is just exposed, the speed of rotation is: a. 94.6 rpm br267.5 rpm c. 133.8 rpm d. 535.0 rpm