If combustion air openings pass through horizontal ducts with 4,000 BTU input, how large should the openings measure?

A) 4 sq in B) 2 sq in C) 3 sq in D) 1 sq in


B

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What type of tank is only for substances that do not contain toxic vapors or high vapor pressure liquids?

A) Atmospheric tanks B) Pressurized tanks C) Spherical tanks D) Hemispheroid tanks

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____ per inch (DPI) is a measure of printing resolution.

A. Diameter B. Dots C. Design D. Detail

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To measure machine wear through lubrication, use lubricant analysis, wear particle analysis, or ferrography, which are types of _____

A) radiology B) tribology C) methodology D) biology

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What were the five major innovations that made the American System possible?

What will be an ideal response?

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