If the unit does not run, what is the first thing to check?
What will be an ideal response?
Power supply to the unit
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The cost of the OEM replacement rail and reinforcements is $790, and a 7-hour labor time is allowed. A recycled sectional assembly is available for $450—it will take 5 hours to trim it up and an additional 6 hours to install it. With a prevailing labor rate of $45 per hour, which is the more economical repair route to follow?
What will be an ideal response?
Technician A assumes a replacement part is good just because it is new. Technician B says that sometimes recent repair work will be the cause of a complaint. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
The reason thermal properties of matter are important is because:
A) They determine if something is wood or metal. B) They determine the relative buoyancy of two liquids at a constant temperature. C) Heating and air conditioning are about moving heat. D) They determine which direction vortexes will form through a restriction.
Hinged units are referred to as ____ or awning windows, depending on whether or not they swing from the side or the top.
A. vertical swing B. casement C. single-hung D. folding