Which type of duct system has the air handler located in a central position compared to the supply registers, and has supply registers normally located on the interior walls of the structure?
A. plenum-type duct system
B. reducing-extended-plenum duct system
C. perimeter duct system
D. extended-plenum duct system
Answer: A
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A. 0 volts B. 0.20 volts C. 0.60 volts D. 1.1 volts
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The cross-section shown in the figure above is a commercial nosing designed for use with _____
a. steel-pan stairs
b. concrete stairs
c. sloped-riser steel-pan stairs
d. wood stairs