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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