The most effective method of checking the heating elements of an electric furnace during operation is:
A) Checking the amp draw of each heat strip. B) Checking the resistance of each heat strip.
C) Measuring the temperature of each heat strip. D) A visual inspection.
A
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An example of an input device is a ____.
a. light b. solenoid c. motor d. pyrometer
In a flooded chiller, the chilled water is circulated:
A) Through the inside of the chiller tubes. B) Through the compressor water cooling jacket. C) Over the outside of the chiller tubes. D) Over the outside of the chiller shell.
The walls of the house were built using ________ staggered-stud wood framing, and walls and ceiling/attic are insulated to an R-value of ________
A) 3 x 3, 30 B) 2 x 6, 80 C) 2 x 4, 40 D) 3 x 5, 50
The three primary sources of wood are old-growth, second-growth, and ____.
A. third-growth B. renewed growth C. plantation forests D. renewed forests