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HVAC
NATE Hydronics Oil Service Specialty
Water Treatment
Knowledge Check
Water Treatment
Knowledge Check
Knowledge Check
1 / 15
A 40% propylene glycol solution provides freeze protection to approximately what temperature?
A
-10 degrees F (-23 degrees C)
B
0 degrees F (-18 degrees C)
C
-25 degrees F (-32 degrees C)
D
15 degrees F (-9 degrees C)
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