Welding: Principles and Applications (MindTap Course List)
8th Edition
ISBN: 9781305494695
Author: Larry Jeffus
Publisher: Cengage Learning
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Textbook Question
Chapter 4, Problem 5R
According to Table 4-1, what would the amperage range be for the following electrodes?
a.1/8 in. (3.2 mm), (70-130)
b.5/32 in. g mm), E7018 (125-220)
c.3/32 in. (2.4 mm), E7016 (75-105)
d.1/8 in. (3.2 mm), 6011 (85-125)
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Chapter 4 Solutions
Welding: Principles and Applications (MindTap Course List)
Ch. 4 - Describe two methods of striking an arc with an...Ch. 4 - Why is it important to strike the arc only in the...Ch. 4 - What problems may result by using an electrode at...Ch. 4 - What problems may result by using an electrode at...Ch. 4 - According to Table 4-1, what would the amperage...Ch. 4 - What makes some spatter “hard?”Ch. 4 - Why should you never change the current setting...Ch. 4 - What factors should be considered when selecting...Ch. 4 - What can a welder do to control overheating of the...Ch. 4 - What problems can result from too long or too...
Ch. 4 - What arc problems can occur in deep or narrow weld...Ch. 4 - Describe the difference between using a leading...Ch. 4 - Can all electrodes be used with a leading angle?...Ch. 4 - What characteristics of the weld bead do the...Ch. 4 - What are some of the applications for the circular...Ch. 4 - Using a pencil and paper, draw two complete lines...Ch. 4 - Why is it important to find a good welding...Ch. 4 - Which electrodes would be grouped in the following...Ch. 4 - Give one advantage of using electrodes with...Ch. 4 - What are stringer beads?Ch. 4 - Describe an ideal tack weld.Ch. 4 - What effect does the root opening or root gap have...Ch. 4 - What can happen if the fillet weld on a lap joint...Ch. 4 - Which plate heats up faster on a tee joint? Why?Ch. 4 - Can a tee weld be strong if the welds on both...
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