What capacity system will provide the best operating efficiency in cooling for a house with a design heat gain of 2 tons?
A) A 4 ton system B) A 3 ton system C) A 2 ton system D) A 2.5 ton system
C
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A simple roof truss design is shown in Figure 4.10. The lower section, VWXY, is made from three equal length segments. UW and XZ are perpendicular to VT and TY, respectively. If VWXY is 2.0 × 10^1 m and the height of the truss is 2.5 m, determine the lengths of XT and XZ.
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The outer shielding in a medium-voltage cable is best described as _____.
a. a semi-conductive layer under a metallic layer b. a metallic layer under a semi-conductive layer c. a metallic layer next to the current-carrying conductors d. polyethylene combined with ethylene propylene rubber
____________________ length is the actual length of a wool fiber.
Fill in the blank(s) with the appropriate word(s).
Approximately 35 million work hours are lost annually as a result of accidents
Indicate whether the statement is true or false