Describe the gas combustion process as it applies to a gas furnace
What will be an ideal response?
Gas passes through an orifice and the gas stream travels into the burner venturi. Primary air is sucked into the burner by the velocity of the gas. The air and gas mix in the venturi and travel into the burner. The gas air mixture comes out the burner holes where it is ignited. Secondary air is drawn in around the flames by the draft created.
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_____ is a secretive bird that is rarely seen
a. American bittern b. Least bittern c. Green-backed heron d. Tricolored heron
The ____________________ is the next weld layer(s) to be made after the hot pass.
Fill in the blank(s) with the appropriate word(s).
? Identify and state the historical significance of Sigmund Freud.
What will be an ideal response?
Section 334.80 covers the ampacity of Type NM cable. It states that even though the cable’s insulation is rated at 90°C (194°F) the allowable ampacity of the cable is taken from the _____°C column in Table 310.15(B)(16).
Fill in the blank(s) with the appropriate word(s).