The first nationally recommended electrical code was published in _____.
a. 1850
b. 1895
c. 1911
d. 1923
b. 1895
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____ is a thin, tough plastic material used to cover the sheathing on exterior walls.
a.Canvas b.Housewrap c.Tarpaulin d.Dropcloth
In zoning systems with multiple stages of cooling, which of the following is most likely to determine when
the second stage begins to operate? a. The amount of superheat in the suction gas returning to the condensing unit. b. The amount of subcooling in the liquid leaving the condensing unit. c. The difference between the supply and return air temperatures. d. The length of time the first stage has operated without satisfying the space.
Why is a library of piping symbols important when drawing with CAD?
What will be an ideal response?
Runlevel ____ is multiuser mode, but network services are not enabled.
A. 2 B. 3 C. 4 D. 5