The safety switch in the chilled water line that is activated by water flow is called a ____________________.
Fill in the blank(s) with the appropriate word(s).
flow switch
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Brazing is done at ____ soldering.
A. the same temperature as B. lower temperatures than C. higher temperatures than D. temperatures that can be higher or lower than
How is a temperature-pressure relief valve on a hot-water boiler tested?
What will be an ideal response?
How does air from air conditioning vents affect open display cases?
A) It improves their performance by lowering the temperature of the air surrounding the display case. B) Open display cases are not affected by external air sources because of their engineered air baffles. C) Open display cases are not affected by external air sources because of their powerful built in air curtains. D) It disrupts the case's air curtain, causing them to rise in temperature.
A typical residential split-system air conditioner has the evaporator located indoors and the condenser and compressor located:
A) In the mechanical room. B) Next to the evaporator in the attic. C) In the basement. D) Outdoors.