What is the most common source of power for most HVACR systems?
What will be an ideal response?
Alternating current is the most common source of power for most HVACR systems.
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Vacuum is described as a lack of pressure.
Answer the following statement true (T) or false (F)
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Computer-based training is part of:
How often must refillable refrigerant cylinders be recertified?
A) Every 10 years B) Every 20 years C) Every 5 years D) They only require certification when they are manufactured.
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Express 3/32:32/7 in its lowest terms:
What will be an ideal response?
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