In multi-zone systems with one trunk duct to each zone, what is used to adjust the temperature of the air?
A) mixing dampers B) outside air C) hot and cold decks D) fans
C
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When death rates are computed on the basis of the number of deaths per 100,000 workers, the highest industry category for death is:
A) Agriculture B) Construction C) Manufacturing D) Mining/quarrying
Explain what a load-bearing element is.
What will be an ideal response?
NEC Chapter 5 contains _____.
a. requirements for communications systems b. information on special equipment c. information on special occupancy areas d. requirements for overcurrent protection
How will an increase in temperature from 50oF to 220 oF affect the resistance of an NTC thermistor?
A. The resistance decreases B. The resistance increases C. The resistance will be unaffected D. The resistance should go to "infinity"