The AHRI definition of standard air is:
A) .075 lb/ft3 @ 70°F. B) .075 lb/ft2 @ 80°F. C) 0.75 lb/ft3 @ 75°F. D) .075 ft3/lb. @ 95°F.
A
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Explain the prime objective of most construction companies and how they feel about computerized systems.
What will be an ideal response?
Oils release vapors that can be ignited when they reach their _____.
a. flash point b. fire point c. boiling point d. ignition point
Why would having a system tested and balanced be a good first step towards reducing energy cost?
What will be an ideal response?
Technicians that use a systems approach to troubleshooting:
A) Must understand the interrelationship between different system components. B) Replace the components that fail most often. C) Typically check the resistance of all the electrical components in the system. D) Only work on systems that they are already familiar with.