What is the purpose of annealing copper tubing?
A) To harden the tubing and improve its strength
B) To prepare the tubing for brazing
C) To remove impurities from the copper
D) To allow the tubing to be formed without cracking or buckling
D
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a. air b. water c. gas d. steam
When using water jet cutting, ____________________ is not a problem when cutting composite or laminated materials such as carbon fibers, resins, or computer circuit boards.
Fill in the blank(s) with the appropriate word(s).
A(n) ____ is a thickened section of the foundation, which helps it resist the pressure exerted by the earth on the outside.
A. pilaster B. girder C. anchor D. beam
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A) 1,354 ? B) 42 k? C) 13,548 ? D) 62 k?