Many natural gas fired heating units operate at a manifold pressure of 3.5 in. WC.

Answer the following statement true (T) or false (F)


True

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Answer the following statement(s) true (T) or false (F)

When driving nails, the angle and placement of the nails are important.

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Which of the following will produce an offset in a conduit run?

a. Improperly calculated sweep bends b. Two kick bends in opposite directions c. A small obstruction being crossed d. A single change in direction

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Net stack temperature identifies _____

a. actual flue gas temperature b. heat lost to the ambient c. burner flame temperature d. heat created by combustion

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What is Standard 189.1-2009?

What will be an ideal response?

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