Study Guide with Lab Manual for Jeffus' Welding: Principles and Applications, 8th

8th Edition

ISBN: 9781305494701

Author: Larry Jeffus

Publisher: Cengage Learning

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Machining Processes and Machine Tools

Machining is represented as the process in which an excessive amount of substance is eliminated from the particular element in the form of pieces. In machining, cutting tools such as rotary tools, lathe, drill press, grinder, chop saw, welders, and many …

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Textbook Question

Chapter 7, Problem 29R

Why is a slight forward torch angle helpful for cutting?

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Chapter 7, Problem 28R

Chapter 7, Problem 30R

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Name three methods used to perform welding, cutting, or blazing operations?

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Chapter 7 Solutions

Study Guide with Lab Manual for Jeffus' Welding: Principles and Applications, 8th

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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Why is a slight forward torch angle helpful for cutting?

Solution Summary: The author explains the advantages of slight forward angle of cutting torch for cutting. It pre-heats the work metal, blows dirt and oxide layer from the surface, and keeps the tips clean for longer periods.

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