What does the technician normally do when installing a gas vent on a rooftop packaged unit?

A) an approved double wall vent is piped away from the unit to the side of the roof
B) an approved single wall vent is piped at least 3 feet above the top of the unit
C) the manufacturer supplied hood is screwed onto the unit
D) a vent hood is only needed if the unit is installed inside


C

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Fill in the blank(s) with the appropriate word(s).

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Indicate whether the statement is true or false

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a. National Society of Pipeline Engineers b. National Society of Petroleum Engineers c. National Society of Professional Engineers d. Northern States Power Enterprise

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What will be an ideal response?

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