Filler materials used in the high temperature connection of copper joints are composed of ____.

A. 50/50 tin-lead
B. 95/5 tin-antimony
C. 15%-60% silver
D. bronze


Answer: C

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Pick the two terms which are synonymous.

A) Humidity ratio B) Relative humidity C) Absolute humidity

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Explain what a No. 200 sieve is.

What will be an ideal response?

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When using a fire extinguisher, what word can be used to remember what to do?

A) RED B) PASS C) LEVER D) FIRE

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That portion of the incomplete thread that is not fully formed at root or at crest and root, and is produced by the chamfer at the starting end of the thread forming tool.

A. Vanish thread B. partial thread C. washout thread D. thread runout E. all of the above

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