?Which factor does NOT generally influenceundisturbed soil temperature?
A. ?depth
B. ?time of year
C. ?ground loop orientation (horizontal or vertical)
D. ?thermal properties of the soil
Answer: C
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?Remove all oil gallery plugs and clean oil galleries with a brush following hot-tank cleaning. True or false?
Answer the following statement true (T) or false (F)
If the drain for a 90 percent efficient furnace and the drain for the air conditioning coil are run with a common drain, the drain should be sized:
A) For the air conditioning drain, which is larger. B) To handle the combined condensate output of the air conditioner and the furnace. C) For the furnace drain, which is larger. D) To match the cross-section area of the combined drains.
What is a multipoise furnace?
A) It is a vent free oil furnace that can be installed anywhere B) It is a furnace that can use multiple types of fuels C) It is a furnace that can be converted to a boiler D) It is a furnace that can be used in most any position
Refrigeration can be defined as:
A) Adding cold to an area or substance. B) Chemically accelerating the molecular counterrotation. C) Moving heat from where it is not wanted to where it is unobjectionable. D) Pumping in cold through the use of refrigerant.