HVAC Certification Practice Tests 1. Propane and Butane are _______ than air:: Heavier 2. What will be the resistance in the circuit if the supply voltage is 30V and current flowing through the circuit is 5A: 6 ohms 3. Temperature at which oil starts to p
HVAC Certification Practice Tests 1. Propane and Butane are _______ than air:: Heavier 2. What will be the resistance in the circuit if the supply voltage is 30V and current flowing through the circuit is 5A: 6 ohms 3. Temperature at which oil starts to produce a waxy substance that may interfere with the refrigeration system: Floc poin
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hvac certification practice tests 1 propane and b
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