A split central air-conditioning system is installed with the control transformer located in the attic-hung air handler and the condensing unit located outside. The low voltage wire from the thermostat is run to the ____________________.
Fill in the blank(s) with the appropriate word(s).
air handler
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Liquid water, with a density of 1000 kg/m3, flows at a velocity of 8.5 m/s through a circular pipe with a diameter of 42.0 mm. Determine the volumetric flow rate and the mass flow rate of the water.
Given: p = 1000 kg/m3, V = 8.5 m/s, D = 42.0 mm = 0.042 m What will be an ideal response?
In a slab designation 3S4, the number 3 represents the ____.
A. slab number B. slab depth C. slab breadth D. floor number
When refrigerants are exposed to glowing metal surfaces or flames:
A) Carbon monoxide is produced and should be vented. B) A respirator capable of filtering fine dust must be worn. C) Lethal phosgene gas is produced. D) Best practices require the use of proper eye protection.
Constant volume sampling generally tests for four gasses:
A. O2, N2, HC, and CO2 B. CO, HC, NOx, and CO2 C. NOx, H2O, CO2, and CO D. NOx, O2, N2, and H2O