Newer-style gun burners with special air-handling parts should be set in what range of CO2 percentage?
A) 7—9 percent B) 11—13 percent C) 9—11 percent D) 0—3 percent
C
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What type of Registered Jack (RJ) connector has a total of 8 pins?
A. RJ-11 B. RJ-12 C. RJ-14 D. RJ-45
What is the demand factor allowed by the NEC® for calculating the neutral conductor size for an electric range load?
a. 70% b. 80% c. 100% d. 125%
In which of these situations is it necessary to use outdoor air for combustion on an induced-draft furnace?
a. It is always necessary. b. In locations where the outdoor temperature does not fall below 32°F. c. When the furnace is within 50' of a living space. d. When there are chemicals near the furnace.
If the opening inventory is 100 units, the sales are 500 units and the ending inventory is 200 units, then manufacturing must produce:
A) 500 units. B) 300 units. C) 600 units. D) 400 units. E) none of the above