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

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


B

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Determine the length of pipe needed in a 90-degree offset (centerline-to-centerline) of 30” with a take-off of 2.45” per fitting side.

What will be an ideal response?

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Find the year that your retirement account first exceeds (a) $2 mil­lion, and (b) then $3 million. In setting up the spreadsheet you wish to know the amount that must be deposited each year. Use any spreadsheet functions that you choose.

You are a well-paid engineer with a well-estab­lished international corporation. In planning for your retirement, you are optimistic and expect to make an investment of $10,000 in year 1 and in­crease this amount by 10% each year. How long will it take for your account to have a future worth of $2,000,000 at a rate of return of 7% per year?

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Many modern beef and dairy operations rely more on stored grains than on grazing to feed livestock

Indicate whether the statement is true or false

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The ____________________ of ____________________ are the basic guidelines florists use in creating their designs

Fill in the blank(s) with correct word

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