What is the minimum desired return water temperature for a gas-fired boiler?
A) At least 80°F returning to the boiler B) At least 140°F returning to the boiler
C) At least 100°F returning to the boiler D) At least 180°F returning to the boiler
B
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Indicate whether the statement is true or false.
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Which component uses the properties of AC induction to step up or step down voltage for particular HVACR applications?
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