Thinking Like an Engineer: An Active Learning Approach (4th Edition)
4th Edition
ISBN: 9780134639673
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 22ICA
As a reminder, the Reynolds number is discussed in Chapter 9. Dimensionless Number.
When discussing the flow of a fluid through a piping system, we say that friction occurs between the fluid and the pipe wall due to viscous drag. The loss of energy due to the friction against the pipe wall is described by the friction factor. The Darcy friction factor (f) was developed by Henry Darcy (1803–1858), a French scientist who made several important contributions to the field of hydraulics. The friction factor depends on several other factors, including flow regime, Reynolds number, and pipe roughness. The friction factor can be determined in several ways, including from the Moody diagram (show below).
Olive oil having a specific gravity of 0.914 and viscosity of 100.8 centipoise is draining by gravity from the bottom of a tank. The drain line from the tank is a 4-diameter pipe made of commercial steel (pipe roughness, ε=0.045 millimeters). The velocity is 11 meters per second. Determine the friction factor for this system, using the following process.
Step 1: Determine the Reynolds number:
Step 2: Determine flow regime.
- If the flow is laminar (Re £ 2000), continue with step 4.
- If the flow is turbulent or transitional (Re > 2000), continue with step 3.
Step 3: Determine the relative roughness ratio: (ε/D).
Step 4: Determine the Darcy friction factor (f) from the diagram.
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A triangular distributed load of max intensity w acts on beam
AB. The beam is supported by a pin at A and member CD,
which is connected by pins at C and D respectively.
Determine the largest load intensity, Wmax, that can be
applied if the pin at D can support a maximum force of
18000 N. Also determine the reactions at A and C
and express each answer in Cartesian components. Assume
the masses of both beam and member ✓ are
negligible.
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BY NC SA
2016 Eric Davishahl
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B
W
Values for dimensions on the figure are given in the following
table. Note the figure may not be to scale.
Variable Value
a
6.6 m
b
11.88 m
C
4.29 m
The maximum load intensity is
=
wmax
N/m.
The reaction at A is A =
The reaction at C is
=
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Ĵ N.
ĴN.
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The beam is supported by a pin at B and a roller at C and is
subjected to the loading shown with w =110 lb/ft, and F
205 lb.
a.) If M
=
2,590 ft-lb, determine the support reactions at B
and C. Report your answers in both Cartesian components.
b.) Determine the largest magnitude of the applied couple M
for which the beam is still properly supported in equilibrium
with the pin and roller as shown.
2013 Michael Swanbom
CC
BY NC SA
M
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F
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Values for dimensions on the figure are given in the following
table. Note the figure may not be to scale.
Variable Value
a
3.2 ft
b
6.4 ft
C
3 ft
a.) The reaction at B is B =
The reaction at C is C =
ĵ lb.
i+
Ĵ lb.
b.) The largest couple that can be applied is M
ft-lb.
==
i+
The beam ABC has a mass of 79.0 kg and is supported by
the rope BDC that runs through the frictionless pulley at D
. The winch at C has a mass of 36.5 kg. The tension in the
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the moments due to the beam's weight (acting vertically at
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equivalent force acts (measured parallel to the beam from A
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Chapter 13 Solutions
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Ch. 13.2 - An unknown amount of oxygen, kept in 8 piston-type...Ch. 13.2 - The data shown graphically in the figure describe...Ch. 13.5 - Prob. 3CCCh. 13.5 - Prob. 4CCCh. 13 - Capillary action draws liquid up a narrow tube...Ch. 13 - Several reactions are carried out in a closed...Ch. 13 - An environmental engineer has obtained a bacteria...Ch. 13 - In a turbine a device used for mixing the power...Ch. 13 - Being quite interested in obsolete electronics,...Ch. 13 - Referring to the previous ICA 13-5, Angus is also...
Ch. 13 - Prob. 7ICACh. 13 - The following instructions apply to ICA 13-7 to...Ch. 13 - The following instructions apply to ICA 13-7 to...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - Prob. 21ICACh. 13 - As a reminder, the Reynolds number is discussed in...Ch. 13 - As a reminder, the Reynolds number is discussed in...Ch. 13 - An environmental engineer has obtained a bacteria...Ch. 13 - An environmental engineer has obtained a bacteria...Ch. 13 - An environmental engineer has obtained a bacteria...Ch. 13 - A growing field of inquiry that poses both great...Ch. 13 - If an object is heated, the temperature of the...Ch. 13 - The Volcanic Explosivity Index (VEI) is based...Ch. 13 - You are an engineer for a plastics manufacturing...Ch. 13 - A Pitot tube is a device used to measure the...Ch. 13 - As part of an electronic music synthesizer you...Ch. 13 - The following data were collected during testing...Ch. 13 - The relationship of the power required by a...Ch. 13 - When a fluid flows around an object, it creates a...
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