____________________ are patterns caused by the hardening and disuse of bundles of xylem in the
tree.
Fill in the blank(s) with the appropriate word(s).
ANS: Annual rings
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____ are usually omitted to simplify reading of the assembly print.
A. Broken lines B. Temporary lies C. Assembly lines D. Scale lines
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In hardfacing operations, ____ welding permits the surfacing layer to be deposited by flowing molten filler metal into the underlying surface.
A. arc B. oxyfuel C. gas shielded arc D. carbon arc
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Blue smoke from the exhaust indicates the engine is burning oil.
Answer the following statement true (T) or false (F)
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A protractor is used to measure ________.
A. distance B. arcs C. angles
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