A ____, which has a round, hollow cross-sectional configuration, is very effective for use as a structural column.
A. structural tee
B. channel
C. structural pipe
D. flange
Answer: C
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The home lighting chart should include every fixture, its location, the number of light bulbs or tubes it contains, and the ____________________ of each one.
Fill in the blank(s) with the appropriate word(s).
Water supply pipes ____.
A. follow the least direct route to the main shutoff pump B. are not connected to the main shutoff valve C. do not emerge from the municipal water well D. follow the most direct route from the municipal water main
The National Comfort Institute recently reported that approximately __________of air conditioning systems are operating at less than maximum efficiency
A. 10% B. 45% C. 57% D. 70%
The power input winding of a transformer is called the _____ winding.
A. primary B. secondary C. tertiary D. tapped