Welding: Principles and Applications (MindTap Course List)
8th Edition
ISBN: 9781305494695
Author: Larry Jeffus
Publisher: Cengage Learning
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Textbook Question
Chapter 7, Problem 37R
What factors regarding a cut can be read from the sides of the kerf after a cut?
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Procedure:1- Cartesian system, 2D3D,type of support2- Free body diagram3 - Find the support reactions4- If you find a negativenumber then flip the force5- Find the internal force3D∑Fx=0∑Fy=0∑Fz=0∑Mx=0∑My=0\Sigma Mz=02D\Sigma Fx=0\Sigma Fy=0\Sigma Mz=05- Use method of sectionand cut the elementwhere you want to find
Procedure:1- Cartesian system, 2D3D,type of support2- Free body diagram3 - Find the support reactions4- If you find a negativenumber then flip the force5- Find the internal force3D∑Fx=0∑Fy=0∑Fz=0∑Mx=0∑My=0\Sigma Mz=02D\Sigma Fx=0\Sigma Fy=0\Sigma Mz=05- Use method of sectionand cut the elementwhere you want to findthe internal force andkeep either side of the
Procedure:
1- Cartesian system, 2D3D,
type of support
2- Free body diagram
3 - Find the support reactions
4- If you find a negative
number then flip the force
5- Find the internal force
3D
∑Fx=0
∑Fy=0
∑Fz=0
∑Mx=0
∑My=0
ΣMz=0
2D
ΣFx=0
ΣFy=0
ΣMz=0
5- Use method of section
and cut the element
where you want to find
the internal force and
keep either side of the
Chapter 7 Solutions
Welding: Principles and Applications (MindTap Course List)
Ch. 7 - Using Table 7-1, list the six different fuel gases...Ch. 7 - What metals can be cut with the oxyfuel gas...Ch. 7 - What other term is used to refer to the OFC...Ch. 7 - What is a combination welding and cutting torch?Ch. 7 - State one advantage of owning a combination...Ch. 7 - State one advantage of owning a dedicated cutting...Ch. 7 - What is a mixing chamber? Where is it located?Ch. 7 - Define the term equal-pressure torch. How does it...Ch. 7 - How does an injector-type mixing chamber work?Ch. 7 - State the advantages of having two oxygen...
Ch. 7 - Why are some copper alloy cutting tips...Ch. 7 - Using Table 7-4, answer the following: a . Oxygen...Ch. 7 - What determines the amount of preheat flame...Ch. 7 - What can happen if acetylene is used on a tip...Ch. 7 - Why are some propane and natural gas tips made...Ch. 7 - What types of tip seals are used with cutting...Ch. 7 - If a cutting tip sticks in the cutting head, how...Ch. 7 - How can cutting torch tip seals be repaired?Ch. 7 - What is used to reduce the high cylinder or system...Ch. 7 - What do the two pressure gauges on a regulator...Ch. 7 - Why must the gas pressure be released and the...Ch. 7 - What should be done if the torch flashes back?Ch. 7 - What is the purpose of a reverse flow valve?Ch. 7 - Why must the reverse flow valve and the flashback...Ch. 7 - How can a hose be checked for leaks?Ch. 7 - Why is the oxygen valve turned on before starting...Ch. 7 - Why does the preheat flame become slightly...Ch. 7 - What causes the tiny ripples in a hand cut?Ch. 7 - Why is a slight forward torch angle helpful for...Ch. 7 - Why should cans, drums, tanks, or other sealed...Ch. 7 - Why is the torch tip raised as the cutting lever...Ch. 7 - Why are the preheat holes not aligned in the kerf...Ch. 7 - Sketch the proper end shape of a soapstone that is...Ch. 7 - What are two methods you can use to determine what...Ch. 7 - What is the best way to set the oxygen pressure...Ch. 7 - Why is it important to have extra ventilation...Ch. 7 - What factors regarding a cut can be read from the...Ch. 7 - What is hard slag?Ch. 7 - Why is it important to make good-quality cuts?Ch. 7 - When using an ordinary welding table, what can be...Ch. 7 - Describe the methods of controlling distortion...Ch. 7 - List three things that can become a problem when...Ch. 7 - How does cutting small-diameter pipe differ from...
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