Which type of duct material has a high level of friction to air flow?
A. galvanized metal
B. fiberglass-wrapped, spiral duct (flexible duct)
C. fiberglass, fiberboard sheeting
D. round sheet metal
Answer: B
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Use the accompanying figure to compute angle C to the nearest hundredth of a degree. Angle A is 31o and angle B is 8o.
A. 25.41o B. 27.34o C. 30.75o D. 31.22o
What would be a suitable planting pit for a deciduous shrub with a spreading root system?
a. mounded bottom b. wedge shaped c. flat bottomed d. uneven bottom with layer of loose soil
Given the moment curve for the beam, (a) sketch the deflected shape and (b) determine the applied loading qualitatively.
Gage block wear may be caused by:
A) Leaving blocks wrung for an extended periods of time B) Burrs, dirt, and dust C) Improper handling D) All of the above