Lab Manual for Tomczyk/Silberstein/ Whitman/Johnson’s Refrigeration and Air Conditioning Technology, 8th
8th Edition
ISBN: 9781305578708
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 7, Problem 5RQ
Why are some ACR tubing lines insulated?
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Students have asked these similar questions
5 kN-m
A beam with an inverted tee-shaped cross section is subjected to positive bending mo-
ments of M₂ = 5 kN-m. The cross-sectional dimensions of the beam are shown below.
10 mm
Determine:
(a) the centroid location, the
moment of inertia about the
z axis,
40 mm
5 kN-m
K
150 mm
H
15 mm
120 mm
(b) the bending stress at points
H and K.
ans: 17.83mPa
(c) the maximum bending stress
produced in the cross section.
EXAMPLE 6.4
Draw the shear and moment diagrams for the beam shown in Fig. 6-7a.
15 kN
80 kN·m
-5 m
B
-5 m
(a)
5 kN/m
D
2) A short rectangular post supports compressive loads of P- 175 kN and Q-90 kN, as shown in the
figure below. A top view of the post showing the locations where loads P and Q are applied to the
top of the post is also given. Determine the vertical normal stresses at corners a, b, c, and d of the
post.
P=175 kN
Q=90 kN
160 mm
120 mm
b
40 mm
160 mm
a
x
d
60 mm
40 mm
Chapter 7 Solutions
Lab Manual for Tomczyk/Silberstein/ Whitman/Johnson’s Refrigeration and Air Conditioning Technology, 8th
Ch. 7 - The standard weight of copper tubing used most...Ch. 7 - The size of 1/2 in. would refer to the...Ch. 7 - The size of 1/2 in. would refer to the _______...Ch. 7 - In what size rolls is soft copper tubing normally...Ch. 7 - Why are some ACR tubing lines insulated?Ch. 7 - Describe procedures for bending soft copper...Ch. 7 - Describe the procedure for cutting tubing with a...Ch. 7 - What type of solder is suitable for moderate...Ch. 7 - Describe the steps for making a good soldered...Ch. 7 - Describe the procedures for making a flare for...
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