Conductor sizes are expressed in American Wire Gage (AWG) or in ____.
A. circular mils
B. copper gauge units
C. diameter in inches
D. millimeters squared
Answer: A
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Compressive strength based on net cross-sectional area is required to be at _____ psi for individual units and _____ psi for the average three units.
A. 1200, 1400 B. 1250, 1500 C. 15,00, 1750 D. 1700, 1900
Why would a 35°F medium temperature case need to defrost?
A) A 35°F temperature case does not need to defrost. B) The store manager might decide to maintain a lower box temperature. C) The coil temperature for a 35°F box operates below freezing. D) It is common for water to freeze at 35° in higher elevations.
The performance of a particular insulation in a building component is affected as much by the ____ as by the rated R-value.
A. U-value B. quality of the air barrier C. quality of the installation and the completeness of the air barrier D. thickness of the installation
ASE-Style Multiple Choice ____ result(s) when excess current causes wiring to overheat, melt, and burn.
A. Reactivity B. Electrical fires C. Toxicity D. Spontaneous combustion