HVAC Certification Practice Tests
questions and complete solution
Heavier - correct answer ✔✔ Propane and Butane are _______ than air:
6 ohms - correct answer ✔✔ What will be the resistance in the circuit if the supply voltage is
30V and current flowing through the circuit is 5A
Floc point - correct answer ✔✔ Temperature at which oil starts to produce a waxy substance
that may interfere with the refrigeration system
Yellow hose - correct answer ✔✔ What manifold gauge set is used to charge, evacuate, add oil
and recover refrigerant from a refrigeration and air conditioning system?
Discharge line - correct answer ✔✔ Where is the oil separator located?
Lesser - correct answer ✔✔ Higher the ambient temperatures, ____ will be the evacuation time
of the refrigerants from the system
3.41 Btu's - correct answer ✔✔ 1 Watt is equal to
Latent heat - correct answer ✔✔ Heat that is absorbed or extracted when a substance changes
its state is
Liquid line - correct answer ✔✔ Where is the sight glass present in the refrigeration cycle?
questions and complete solution
Heavier - correct answer ✔✔ Propane and Butane are _______ than air:
6 ohms - correct answer ✔✔ What will be the resistance in the circuit if the supply voltage is
30V and current flowing through the circuit is 5A
Floc point - correct answer ✔✔ Temperature at which oil starts to produce a waxy substance
that may interfere with the refrigeration system
Yellow hose - correct answer ✔✔ What manifold gauge set is used to charge, evacuate, add oil
and recover refrigerant from a refrigeration and air conditioning system?
Discharge line - correct answer ✔✔ Where is the oil separator located?
Lesser - correct answer ✔✔ Higher the ambient temperatures, ____ will be the evacuation time
of the refrigerants from the system
3.41 Btu's - correct answer ✔✔ 1 Watt is equal to
Latent heat - correct answer ✔✔ Heat that is absorbed or extracted when a substance changes
its state is
Liquid line - correct answer ✔✔ Where is the sight glass present in the refrigeration cycle?
