When are wood floor trusses used and why?
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Wood floor trusses are frequently used instead of solid or engineered wood joists. They provide long spans and often eliminate the need for one or more beams to support a long-spanned floor. Since they have open webs, it is easy to run electrical, mechanical, and plumbing systems through them. Wood floor trusses may be all wood or utilize metal webs between wood top and bottom chords.
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A digital watermark shifts individual text characters from the home position. The shift can be zero, one unit to the left or right, or one unit up or down. If 600,000,000 different watermarks are desired, the number of characters required is _______.
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Which of the following is true of the chain of agribusiness?
a. Begins with materials of relatively low value b. Ends with the modification of materials of relatively low value c. Each step adds value to the product. d. Both (a) and (b) are true e. Both (a) and (c)
Why would having a system tested and balanced be a good first step towards reducing energy cost?
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In a series AC circuit, the current is always in phase with the voltage regardless of the number of ____ in the circuit.
A. inductors B. generators C. capacitors D. resistors