If an excessive amount of preheat flame is used, ____.
A. the cutting stream may gouge the side of the cut
B. the top edge may be melted or rounded off
C. the cut may be incomplete
D. the sides of the kerf may be dished
Answer: B
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____ materials are materials that are derived from a living plant, animal, or ecosystem that has the ability to regenerate itself.
A. Recycled B. Renewable C. Rejuvenated D. Conductive
The carpenter’s ____ is used to test both level and plumb surfaces.
a.rule b.level c.plumb bob d.steel tape
What purpose does covering concrete after a pour serve?
a. protects surface from rainfall b. slows the curing c. reduces cracking d. all of the above
A heat engine ____
a. transfers energy from a cold sink to a hot sink b. is 100% efficient c. gains heat by friction d. transfers heat from a hot reservoir to a cold reservoir