a) In a vertical pipe carrying water, see Figure 3, pressure gauges are inserted at points A and B where the pipe diameters are 0.15 m and 0.075 m respectively. The point B is 2.5 m below A and when the flow rate down the pipe is 0.02 m/s, the pressure at B is 14715N/m greater than that at A. Assuming the losses in the pipe between A and B can be expressed as: k where vis the velocity at A. 2g 1. Find the value of the value of k 2. If the gauges at A and B are replaced by tubes filled with water and connected to a U-tube containing mercury of relative density 13.6, give a sketch showing how the levels in the two limbs of the U-tube differ and calculate the value of this difference in metres. da = 0.2m OA dg = 0.2m OB Figure 3: Te be used for Oue 4a

a) In a vertical pipe carrying water, see Figure 3, pressure gauges are inserted at points A and B where the pipe diameters are 0.15 m and 0.075 m respectively. The point B is 2.5 m below A and when the flow rate down the pipe is 0.02 m/s, the pressure at B is 14715N/m greater than that at A. Assuming the losses in the pipe between A and B can be expressed as: k where vis the velocity at A. 2g 1. Find the value of the value of k 2. If the gauges at A and B are replaced by tubes filled with water and connected to a U-tube containing mercury of relative density 13.6, give a sketch showing how the levels in the two limbs of the U-tube differ and calculate the value of this difference in metres. da = 0.2m OA dg = 0.2m OB Figure 3: Te be used for Oue 4a

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

Similar questions

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?
4. Brine (SG = 1.1, viscosity = 1.1cP) is pumped at a rate of 45 ft^3/min (ID = 2.5in) from large open reservoir to the bottom of another open tank. The liquid level in the reservoir is maintained at 5.2ft, and the liquid level in the reservoir and the bottom of the discharge tank are 18ft apart, vertically. Friction losses in the pipe amount to 10% of the elevation head. If 2.15 hp of power is required for the process, what is the expected liquid level in the receiving tank?
PROBLEM 3: A venturi meter with a throat diameter of 100 mm is fitted in a vertical pipeline of 200 mm diameter with oil of specific gravity 0.88 flowing upwards. Two pressure gauges are fitted at tapping points, one at the throat and the other in the inlet pipe 320 mm below the throat. The difference between the 2 gage pressure readings is 28 kPa. (a) Determine the flow in m^3/s neglecting head losses. (b) Working from Bernoulli’s equation, determine the difference in level (in millimeters) between the two limbs of a mercury manometer if it is connected to the tapping points and the connecting pipes are filled with the same oil.
Water at 80◦C flows steadily from a tank shown below at a volume flow rate of 475 L/min to a pump througha 62.7-mm diameter steel pipe. The roughness element size is 46 μm. The kinematic viscosity of water isν = μ/ρ = 3.60 × 10−7 m2/s. The tank is open to the air through a hole shown in the figure. If needed, usethe table and the Moody chart on the next page. (a) What is the pressure at the pump inlet?(b) It is desired to increase the pressure at the inlet of the pump while keeping the volume flow rate constant.If that is the only design constraint, what changes can be made to the existing system to achieve thenew design goal? List at least three suggestions.
a venturimeter with inlet and throat diameters 300 mm and 150 mm respectively is attached in a vertical pipe in which flow occurs from bottom to top. the distance between the point of entrance and to the point of throat of the venturimeter is 750 mm. if the difference of mercury levels in the two limbs of differential gauge is 220 mm, find the discharge passing through the vertical pipe. take co-efficient of discharge, Cd = 0.98.
A venturi meter has water flowing through it. The pressure difference is 1 psi. The diameter at point 1 is 1 ft, and that at point 2 is 0.5 ft. What is the volumetric flow rate through this meter?A. 0.03 m³/sB. 0.04 m³/sC. 0.06 m³/sD. 0.07 m³/s
a. Certain fluid is flowing in a circular pipe w/ Reynolds no. of 400. What will happen to the frictional pressure loss in the pipe if pipe length (L) is doubled? b. Certain fluid is flowing in a circular pipe w/ Reynolds no. of 400. What will happen to the frictional pressure loss in the pipe if vol. flow rate (Q) is doubled?
1. Water flows at a rate of 65 Li/min in a steel pipe of 45 mm diameter, K = 0.045x10-3 m, μ = 0.001 K/m.s. Determine the type of flow, the friction coefficient, and the head loss due to friction per meter length of the pipe using: (a) Moody chart and (b) using smooth pipe formula. 2. Determine the size of galvanized steel pipe needed to carry water for a distance of 180 m at 85 Li/s with a head loss of 9.0 m. Take ε = 0.15 mm.
As shown in figure below, oil can be siphoned from a tank using a flexible hose, provided that the end of the hose at Point B, is below the free surface in the tank at Point A. The maximum elevation of the hose is at Point C. Oil is being siphoned from the tank through a constant-diameter hose. The end of the siphon at Point B is 6.71 meters below the oil top surface level of the tank at Point A. If the gauge pressure at Point C is 90.257 KPa and the density of oil is 890 fraction numerator k g over denominator m cubed end fraction , the vertical distance between Point C and Point B in meters is
A large tank is partly filled with oil (s.g.= 0.85), the air space above being under pressure. A 50 mm ϕ hose connected to the tank discharges on the roof of a building 15.25 m above the level in the tank. The friction loss is 5.50 m. What air pressure in KPa must be maintained in the tank to deliver 0.0124 m3/s on the roof?
What must the gauge pressure p be at A if the volume flow rate out of the pipe at point B is 0.0800 m^3/s?
An oil of specific gravity 0.84 is flowing through a horizontal venturimeter fitted to a 258 mm diameter pipe at the rate of 112 liters/s and throat diameter is 136 mm. The pressure gauges are inserted at the entrance and the throat show pressures of 0.132 N/mm2 and 0.075 N/mm2 respectively. Calculate (i) the head difference in m of oil, (ii) the theoretical discharge in m3/s, (iii) the actual discharge in m3/s, and (iv) the coefficient of discharge of a venturimeter. If instead of pressure gauges, the entrance and throat of the venturimeter are connected in the two limbs of a U-tube mercury manometer, determine (v) the difference in the mercury level in meter.