The ____ gate performs the function called inversion, or complementation, and is commonly referred to as an inverter.

A. NAND
B. AND
C. OR
D. NOT


Answer: D

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Two common methods of framing the floor system are conventional joist and ____.

A. post-and-seam B. post-and-beam C. beam-and-seam D. beam-and-joist

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Define the term “standard deviation.”

What will be an ideal response?

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By 1880, the population of American bison was down to only about 1,000 animals and the species risked extinction

Indicate whether the statement is true or false

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PROBLEM 3.56 Solve Prob. 3.55, assuming that the shaft AB is replaced by a hollow shaft of the same outer diameter and 25-mm inner diameter. PROBLEM 3.55 Two solid steel shafts are connected to a coupling disk B and to fixed supports at A and C. For the loading shown, determine (a) the reaction at each support, (b) the maximum shearing stress in shaft AB, (c) the maximum shearing stress in shaft BC.

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