Which tier of emission standards is the least stringent?

A) Tier 3 B) Tier 2 C) Tier 1 D) None of these


C

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When insulating a valve with sheet material, first fabricate the _____.

a. body cover b. bonnet flange c. dutchmen d. adjacent pipe insulation

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Vacuum packing had little effect on the trend toward leaner meat

Indicate whether the statement is true or false

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Why do acetylene cylinders contain acetone?

A) Acetylene gas is dissolved in the acetone liquid. B) The acetone liquid boils off to form acetylene gas. C) Acetone helps keep the cylinder weight balanced by evenly distributing the liquid. D) Acetone chemically reacts with the filler in the tank to produce acetylene gas.

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When drawing thick lines, they should be drawn how thick with relationship to thin lines?

__________________________ Fill in the blank(s) with correct word

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