Rooftop units should not be installed in close proximity to exhaust vents or industrial processes that create fumes because:
A) The roof supports are weaker near the vents.
B) The exhaust can be pulled into the unit's outdoor air intake.
C) The heat from the rooftop unit might cause down drafts.
D) The exhaust might stain the side of the unit.
B
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What will be an ideal response?
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What will be an ideal response?
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What will be an ideal response?
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The ____ is a seal in which the rotating mating ring is internally mounted in the stuffing box.
A. outside seal B. O-ring C. inside seal D. double seal
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