For the following questions, Circle the correct answer Q1. We have a steady fully rough turbulent flow of water with constant density in a cylindrical pipe of constant diameter. The height of the uniform roughness elements in the pipe is k.. . . . For a fully developed rough turbulent flow in the pipe, the condition k">70 is the same as k,> 68,. [True/False] The wall shear stress T-pfU/8. It is applicable only for steady fully rough turbulent flow in the pipe. [True/False] The shear stress distribution is linear with the radial distance from the pipe centerline only for laminar flow. [True/False] The head loss per unit length is quadrupled when the discharge is doubled. [True/ False] The piezometric pressure drops uniformly along the pipe because the flow is steady along the pipe [True/False]

For the following questions, Circle the correct answer Q1. We have a steady fully rough turbulent flow of water with constant density in a cylindrical pipe of constant diameter. The height of the uniform roughness elements in the pipe is k.. . . . For a fully developed rough turbulent flow in the pipe, the condition k">70 is the same as k,> 68,. [True/False] The wall shear stress T-pfU/8. It is applicable only for steady fully rough turbulent flow in the pipe. [True/False] The shear stress distribution is linear with the radial distance from the pipe centerline only for laminar flow. [True/False] The head loss per unit length is quadrupled when the discharge is doubled. [True/ False] The piezometric pressure drops uniformly along the pipe because the flow is steady along the pipe [True/False]

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

two points; (D) gauge 10. A Terran T-280 SCV (space construction vehicle) examines a typical vespene geyser field, which normally contains 20 circular openings, each of which has a radius of 0.10 m. The geyser mouths (according to a sonar probe) are connected to a main geyser “pipe" 0.80 m in radius. If the speed of the vespene gas is 3.0 m/s through the main pipe, what is its velocity as it exits through one of the geyser mouths? spaads The
The laminar flow of a fluid with a constant viscosity, 4, inside a channel is governed by the following boundary value problem (strong form): d'u dp for y E (0, h) "dy dr u = 0 at y = 0 and y = h vhere u is the fluid velocity and is the pressure drop in the direction of the flow. a) Derive the weak form of the boundary value problem described above.
Fluid A oil. abs + Tatm.) : 8. In the figure whown, PluidA is oil (s.9. = 0.80), Fluid B is upecial gage liguid (s.g.:s.g=2A), and x- 1.45 m., determine the clevation z of Fluid A if the prassure at pt. nis 22.06/25 klag and it is three - fourts of the pressure at pt.m. 3. %3D Fluide) sgl. Z :?
CONSIDER THE PRESSYRE DROP FOR STEADY, INCOHPRESSiole visous Flow in A STRAIGHT PIPE: AP. (R= D/½) THE PIPE RADIUS AND DIAMETER ARE R 2 D THE PIPE LENGTH is L THE FloiD DENSITY AND Viscos iTY ARE S AND H. THe AVERAGE PluiD VelociTy THE Flow RATE is Q (Q- ™R²U) is U a) DETERHINE A SET OF INDEPENDENT DIMENSIONA PARAMETERS THAT AFFECT AP b) CHOOSE A SET OF PRIMARY DIMENSIONS C CHOOSE A SET OF REPEATING PARAMETERS d) Ap NON -DIMENSI ONA OSE THE REPEATING PARAMETERS TO MAKE | OBTAIN A SET OF DIMENSION ESs GROUPS iF AP is Also AFFECTED BY THE AVERAGE 'ROGHNESS' HEIGHT e WITH DIMENSIONS OF LENGTH. IS THis ANOTHER INDEPENDENT PARAMETER ? ExplAiN.
Q2/ Put a Circle around the correct Answer: 1/ Dimensions of discharge coefficient Cd are: (a) Dimensionless Quantity (b) (m/s) (c) (KN) 2/ Type of water Flow in the pipe is Turbulent when: (a) Re less than 2000 (b) Re = 3000 (c) Re greater than 4000 3/ Water flows upwards in an inclined pipe from point No. (1) to point No. (2) if: (a) Total Head Ht at point No. (1) is greater than HT at point No. (2). (b) Total Head Ht at point No. (1) is less than Ht at point No. (2). (c) Total Head Ht at point No. (1) is equal to H† at point No. (2). 4/ Dimensions of Manning's coefficient n in Manning's equation are: (a) {s/m@/3)} (b) {ml/3)/s} (c) (m/s) 5/ If HT means the total head of water at any point in the pipe and H is the hydraulic head of water at that point. (a) HT is less than H (b) HT is greater than H (c) HT is equal to H
G1/ in the Pipe (A) is equal (PA= 25 Lit15), the diameter is equal ( DA - 75mm, Do = Fig.shown, the Flow rate in 6o mm, Dg = Dc%=30 mm), and the velocit Pipe (D) is equal (U0=5m/s), the relation between flow rate in Pipe (B) and pipe (c) %3D Find the Value af . 2- Un, UB, Uc. water Os = 30 mm input A QA - 25 Lit/sec = 75 mm fo mm %3D Inpud = A outPut = B,C,D accumule tion =o.
G1/ In the fig.shown, the Flow rate Pipe (A) is equal ( QA = 25 Lit15), the diameter is equal ( DA = 75 mm, D, = De = Dc =30mm), and the velocity in Pipe (D) is equal (Uo=5 m/s), the relation between flow rate in in 6o mm, Pipe (B) and pipe (c) GB =3 Qc. Find the Value of '. Re, Qc, Qo. 2- UA, UB, Uc: Pe = 30 mm water Pc = 30mm imput QA = 25 2i+/sec OA= 75 mm = 6o mm input = A outPut = B, C, D accumulation = o.
A circular pipe 54 meters long tapers from 3 m to 2 m in diameter. What is the velocity per meter run at the bigger section, if the velocity there is 45 mps, and the fluid is flowing from the larger section to the smaller section? Round-off answer to the nearest hundredths. H R
At a point in turbulent flow the mean kinetic energy of the turbulent velocity fluctuations is k = 0.9 m² s-2, and the known values of the turbulent velocity fluctuations are U - 0.4 m² s-2, 'u What is the value of -0.5 m² s-2. = value of ...21 U 3? Give your answer to two decimal places.
Answer with True or False of the following question: (7M 1. Water flows steadily down a vertical pipe of constant cross section. Neglecting friction, according to Bernoulli's equation, velocity decreases with height. 2. A liquid in an open right circular cylinder is given rigid body rotation about the axis of the cylinder. The pressure distribution in any vertical plane is uniform. 3. A curved surface is submerged in a static liquid. The horizontal component of pressure force on it is equal to the pressure force on a vertical projection of the surface. 4. A U-tube manometer measures the difference in total energy between two points.
The velocity distribution in a 0.02 m diameter horizontal pipe conveying carbon tetrachloride (specific gravity = 1.59, absolute viscosity = 9.6 x 10-6 Pa sec) is given by the parabolic equation: v(r)=0.01(0.12- r?), where v(r) is the velocity in (m/s) at a distance r in (m) from the pipe center. What is discharge? O a. 3.13 x-8 m3/s O b. None of the mentioned O c. 1.047 x 108 m3/sec O d. 4.97 x 109 m3/sec
If the velocity varies linearty with distance through this fluid nozzie (vertical nozzle), where the specific gravity of the fluid is S-0.46, what will be the pressure gradient, halfway through the nozzle? Assume steady and inviscid flow 2 m/s 50 cm 6 mis Select one a. 38465.20 O b. -57697.80 O e. 19232.60 O d. 9616.30 e. 76930.40