Which of the following statement is TRUE? (A Pressure drop in a fitting for sudden enlargement (e.g. tank inlet) is higher than for sudden contraction (e.g., tank outlet) for the same size ratio B) None of the choices In turbulent flow, the higher the surface roughness of the pipe the higher the influence of the Reynolds number on the friction factor D Friction factor has a linear relationship with Reynolds Number under turbulent conditions E Pressure drop due to friction for a flowing fluid in a straight pipe is proportional to the velocity of the fluid

Which of the following statement is TRUE? (A Pressure drop in a fitting for sudden enlargement (e.g. tank inlet) is higher than for sudden contraction (e.g., tank outlet) for the same size ratio B) None of the choices In turbulent flow, the higher the surface roughness of the pipe the higher the influence of the Reynolds number on the friction factor D Friction factor has a linear relationship with Reynolds Number under turbulent conditions E Pressure drop due to friction for a flowing fluid in a straight pipe is proportional to the velocity of the fluid

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.1P: Evaluate the Reynolds number for flow over a tube from the following data: D=6cm,U=1.0m/s,...

See similar textbooks

Similar questions

The total length of pipe in the three inch branch is 20 ft, and the length of pipe in the one inch branch is 6 ft. Brine (sg=1.04, m=10-3 Pa*s) flows at 250gpm through the entrance at point A. Assume fully turbulent flow in both branches (f=ft). Pipes are standard Schedule 40 steel pipes. Assume the globe valve is partially shut so its equivalent L/D is 1000. determine The flow rate in both branches The pressure drop in both branches The overall resistance coefficient
Which of the following Reynold’s numbers would always represent turbulent flow in a circular pipe? A: 9000 B: 200 C: 4000 D: 2300 I know the answer is A, but why???
Question - You must discuss in detail the way in which the pitot tube and nozzle flow meter are used to calculate velocity or volume flow rate. Write the velocity (or flow rate) equations for both and a detailed description of the what you did.
What level h must be maintained in Fig. to deliver afl ow rate of 0.015 ft3/s through the 1/2-in commercial steel pipe?
Water (specific gravity, G, is 1.0 and the kinematic viscosity, ν, is 1.14 *10-6 m2 /s) flows through a piping system with a flow rate of 0.9 m3 /s. The pipe is 2750 m long and 550 mm inside diameter. The pipe has four gate valves, one globe valve, two swing check valves, three standard tees through-branch, and three 90o standard elbows. Calculate the following: 1. The total length of the piping system.2. Is the flow laminar or turbulent?
1) Which of the following statement is NOT correct about piping network? a) In parallel pipes, the flow rate is proportional to its diameter and inversely proportional to its length and friction factor. b) When analyzing the piping network, conservation of mass throughout the system must be satisfied. c) In piping systems with pumps, the Bernoulli equation should be corrected by introducing a kinetic energy correction factor. d) The algebraic sum of head losses for all loops equal to zero. 2) The EGL is always a distance V2/2g above the HGL. True or False
Indicate how velocity, water temperature, and pipe area affect the Reynolds number.
The venturi meter is to be installed in a schedule 40 4-in(ID=4.026 in) line to measure the flow of water. The maximum flow rate is expected to be 325 gal/min at 60°F. The 50-in manometer used to measure the differential pressure is to be filled with mercury, and water is to fill the leads above the mercury surfaces. The water temperature is to be 60°F throughout. What throat diameter should be specified for the venturi meter?A. 2 inB. 1.5 inC. 1.0 inD. 0.5 in
Which of the following is turbulent flow according to Reynolds number for pipe? a. Re is less than 2000 b. Re is between 2000 to 4000 c. Re is less than 4000 d. Re is more than 4000
What is the critical velocity for an oil of viscocity 4.413x10-6m2/s flowing through 152.4mm diameter pipe?
Q/ Discuss the relation between the flow rate with time and cross section area of pipe ?
Water (specific gravity, G, is 1.0 and the kinematic viscosity, ν, is 1.14 *10-6 m2 /s) flows through a piping system with a flow rate of 0.9 m3/s. The pipe is 2800 m long and 600 mm inside diameter. The pipe has three gate valves, two globe valves, one swing check valve, three standard teesthrough-branch, and four 90o standard elbows. Calculate the following:a- The total length of that piping system.b- Is the flow laminar or turbulent?