An installer compares the areas of a circular duct and a rectangular duct. The 6-inch by 5-inch rectangular duct has an area of 30 sq in. The 5 1/2-inch diameter circular duct has an area of about 24 sq in. What is the ratio of the area of the circular duct to the area of the rectangular duct?
Fill in the blank(s) with the appropriate word(s).
4/5
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In hot, humid climates, the vapor flow in conditioned buildings is generally from
A) the outside to the inside of the envelope. B) the inside to the outside of the envelope.
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The type of anchor that has a cutting sleeve, which is used first as a drill bit and later becomes the expandable anchor itself is a(n) _____.
a. self-drilling anchor b. expansion anchor c. drop-in anchor d. self-threading anchor
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________ DACs produce both positive and negative output values
Fill in the blank(s) with correct word
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What does "MSDS" stand for?
What will be an ideal response?
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