The proper approach is to perform a heat load calculation ____.
a. factoring seasonal requirements
b. for each room
c. for the entire building
d. based on the owner’s usage
b. for each room
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Technician A says that retrofitting a system is simply a matter of recovering the R-12 and recharging it with a drop-in refrigerant. Technician B says that the charge level specification is the same with R-134a as with R-12. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Dimensions that can be added together to come up with one overall dimension are called ____ dimensions.
A. leader B. center C. chain D. summable
________ is the process of using native plants that require little or no water or maintenance
A) Xeriscaping B) Regreening C) Intensive vegetative roofing D) Landscaping
A(n) ____ prevents electrical shock by isolating the equipment from ground
A. isolation transformer B. step-up transformer C. step-down transformer D. autotransformer