A water-level control device in a tank is shown in the figure below. When the water level rises above a desiredheight ho, the device lifts and allows water to drain out through the hole in the bottom of the tank. Aftera certain amount of water drains, the device falls, and the plug seals the hole. A rod of length L = 0.4 mconnects the plug of diameter Dp and the float of diameter D₁ = 0.18 m. The weight of the device (includingthe float, plug and rod) is W = 20 N. Assume that the thicknesses of the plug and the rod are negligible.Also assume that the device and water move very slowly so that the system can be considered hydrostatic.The density of water is p = 1000 kg/m³.(a) Draw the free-body diagram, and indicate all the forces acting on the device.(b) For a desired water level ho = 0.5 m, what is the plug diameter Dp that makes the device lift up.D₁ho

Answered: A water-level control device in a tank…

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

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Two vats are connected by a submerged pipe with a square cross-section, as shown in the image attached. A hinged valve in the centre of the square pipe prevents the fluid in both vats from mixing. The valve door is square and has a cross sectional area of L X L, and the hinge is at the top of the door. The fluid depth in the first tank is h1 and the depth in the second tank is h2. The fluid in Vat 1 exerts a horizontal force, F1, on the valve door when it is closed. Express F1 in terms of h1. The fluid in Vat 1 exerts a Moment M1 on the valve door (acting about the hinge at the top of the door) when it is closed. Express M1 in terms of h1. Considering the fluid in both vat1 and vat2, express the net moment on the door in terms of h1 and h2 when it is closed. If the valve can withstand a moment of Mmax before opening, find the maximum possible height difference between the fluid in vats 1 and 2.
Please solve it, the answer somebody did for me on here is wrong, so please don't copy that and put it here
Water density is 1000kg/M3 Solve part a , b and c
Problem 2: Control volumes and Bernoulli's equation A large open tank of water is mounted on frictionless wheels as shown in Figure 2. The tank has one orifice on each side. The left orifice is located at a distance h from the free water surface and has a diameter d. The right orifice is located at a distance ah from the free water surface and has a diameter ẞd. αh h Bol V₂ Figure 2: Open tank on wheels. 1. Use Bernoulli's equation to calculate the exit velocities at the left and right orifices, v₁ and V2. 2. Determine an equation relating a and ẞ if the tank does not move.
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I want Question 3.1
Problem 1 : A water tower holds a total volume of 100,000 L of water (10oC). The diameter of the tank is 6 m. The bottom of the tank (elevation 1030 m) connects to an outlet pipe (diameter 1/2 m) for supplying water to the water main (elevation 990 m). According to the local guidelines, pressure at any point along the water main must be between 30 and 60 psi (including the junction point with the outlet pipe). How will be water tower’s discharge rate (in gpm) be designed?
You are being asked to determine the heights in tubes B and C (relative to z=0) given the following information: The specific weight of Air is Pair = 11.9N/m3 The specific weight of glycerine is Paiye = 12355N/m3 The specific weight of gasoline is Pgas = 6677N/m3 The gauge pressure at A is Pa = 1.6kPa The height of the tank of air is a = 1.7m The height of the tank of gasoline is y = 1.6m The height of the tank of glyercin is k = 0.95m A в с xm Air y m Gasoline k m Glycerin z = 0 As a HINT, you do not need to know the specific elevations of the tubes B and C entering their respective fluids, but you do need to account for this. Input the height the fluid rises in B to 2 decimal places here: (in metres) Input the height the fluid rises in C to 2 decimal places here: (in metres)
Find the force of oil on the top surface CD of the figure below if the liquid level in the open pipe is reduced by 4.0 ft.
Problem 4: The U-tube manometer is also widely used to measure the difference in pressure between two containers or two points in a given system. As an example a manometer connected between containers A and B is shown in Figure. Pipe A is filled with the diesel fuel has a specific gravity Yadiese fae -8.326 kN/m and pipe B filled with engine oil has a specific gravity Yengine oi -8.955kN/m³’ If the pressure in pipe A is 105.49kN/m2 Determine the pressure at B. ( Ymercuy =133kN/m) (Munson and Young, 1998) air 0.076m 0.127m D' 0.4572m Diesel fuel engine oil 0.1524m mercury 0.1778m
1. A U-tube manometer filled with Liquid A is attached to the underside of 4 inch pipe carrying water, as shown in Figure 2. At a point directly above the inclined U-tube manometer tap, the upstream tap of an inverted U tube is located. The inverted-U-tube manometer is filled with a Liquid B. If the P; = 17 psi, determine; (Note: I in (inch) = 25.4 mm, 1 atm = 101.325 kN/m² = 1.01325 bar = 101.325 kPa = 14.7 psi, g =9.81m/s³). (a) the differential manometer reading (psig), and (b) the value of X (inch). Liquid B, SG = 0.5 37 in. 12 in. Water P1. Pz. 4 in. X in. 58 in. 45° Liquid A, SG = 13.6

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