Two stage furnaces require
A) a 2 stage thermostat, a 2 stage gas valve, a 2 speed inducer fan, and 2 draft pressure switches
B) 2 draft pressure switches
C) a 2 stage gas valve
D) a 2 stage thermostat
A
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All of the following parts are contained in a CV joint boot kit EXCEPT:
A. a boot B. a circlip C. a clamp D. a nut
How many lineal feet of 4-inch-wide rubber base is needed for the office building in Figure 16.15? The doors are 3 feet wide and base is not needed on the outside of the exterior walls. Add 5 percent for waste. How many gallons of adhesive are needed using a coverage of one gallon per 150 square feet of base?
What will be an ideal response?
The last three of Rome’s legendary kings were
a. Latins. b. Greeks. c. Samnites. d. Etruscans.
If, while troubleshooting an R-22 residential air conditioning system at near design conditions, the operating pressures are found to be 80 psig on the low side and 200 psig on the high side, it is most likely that the system is opperating
A. with a compressor that has leaking valves B. with a rerigerant overcharge C. with an overfeeding metering device D. properly