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 43R
How does cutting small-diameter pipe differ from cutting large-diameter pipe?
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How long would it take to purge a 15ft section of 6in diameter pipe using a flow rate of 35cfh?
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QUESTION 11
Slitting is the operation of:
Removal of metal to the desired shape from the edge of a plate.
OCutting a sheet of metal through part of its length and then bending the cut portion.
Making incomplete cutting in a sheet of metal in a straight line.
Bending a sheet of metal along a curved axis.
Diagram:
Given the hook-up drawing, list all the equipment, tools and
materials that are needed in installation.
INST.
PIPING
1-
*1
INST.
PIPING
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Why is the end of a pipe beveled at a 371/2 angle?arrow_forwardUsing Table 7-4, answer the following: a . Oxygen pressure for cutting 1/4-in. (6-mm)-thick metal b. Acetylene pressure for cutting 1-in. (25-mm)-thick metal c. Tip cleaner size for a tip for 2-in. (51 -mm)-thick metal d. Drill size for a tip for 1/2-in. (13-mm)-thick metalarrow_forwardWhat are the advantages of using a feed roller pressure that is as light as possible?arrow_forward
- Broaching is an example of. joining process primary shaping process surface finishing process secondary machining processarrow_forwardwhy there is a little amount of heat loss for fully covered insulated pipe compared to bare pipe?arrow_forwardWhich cutting process uses a forceful stream of oxygen flowing out a center hole in the tip to burn away hot steel?arrow_forward
- Manufacuring Processes An electro chemical machining (ECM) operation is employed too cut a square hole in a copper plate of 18 mm thickness. The dimensions of the hole is 20 mm on each side, however, the electrode dimension shall be slightly less than 20 mm to allow for overcut, and its shape includes a hole in its center to permit the flow of electrolyte and reduce the area of cut. The frontal area of electrode is 180 mm2. The specific removal rate for copper is C = 7.35 x 10-2 mm3/A-s. The applied current is 950 A. At 90 % efficiency, determine the time required to cut a hole of required dimensions.arrow_forwardWater jet cutting is one of several ways of cutting or trimming uncured or cured FRPS; in the case of cured FRPS, the process is noted for its reduction of dust and noise Select one: True Falsearrow_forwardWhat about the stretch for OA?arrow_forward
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