The steel shape that is made by splitting W, S, or M shapes is the _____.
a. MC shape
b. T shape
c. MC shape
d. C shape
b. T shape
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A low retaining wall is sometimes built around the base of a tree when the finished grade is ____ than the natural grade.
A. lower B. higher C. denser D. moister
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Which exhaust emission is formed by high combustion chamber temperatures?
A) CO B) C) NOx D) HC
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In order for a triac to conduct, the gate terminal must be ____.
A. of the same polarity as MT1 B. of the same polarity as MT2 C. positive D. negative
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________ is a common finish coat for exterior surfaces
A) Polyurethane B) Spar varnish C) Acrylic D) Alkyd
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