HVAC Certification Practice Tests Questions and Answers Solved 100% Correct!!
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Course
HVAC Certification
Institution
HVAC Certification
Propane and Butane are _______ than air: - Answer-Heavier
What will be the resistance in the circuit if the supply voltage is 30V and current flowing through the
circuit is 5A - Answer-6 ohms
Temperature at which oil starts to produce a waxy substance that may interfere with the refrigeration
s...
Propane and Butane are _______ than air: - Answer -Heavier
What will be the resistance in the circuit if the supply voltage is 30V and current flowing through the
circuit is 5A - Answer -6 ohms
Temperature at which oil starts to produce a waxy substance that may interfere with the refrigeration
system - Answer -Floc point
What manifold gauge set is used to charge, evacuate, add oil and recover refrigerant from a
refrigeration and air conditioning system? - Answer -Yellow hose
Where is the oil separator located? - Answer -Discharge line
Higher the ambient temperatures, ____ will be the evacuation time of the refrigerants from the
system - Answer -Lesser
1 Watt is equal to - Answer -3.41 Btu's
Heat that is absorbed or extracted when a substance changes its state is - Answer -Latent heat
Where is the sight glass present in the refrigeration cycle? - Answer -Liquid line
Which shall not be used near flammable materials? - Answer -Halide leak detector
Current in a closed circuit is limited by: - Answer -Resistance
When there is an increase in the heat load on the evaporator, the refrigerant will tend to evaporate
at a _____ rate - Answer -Faster
At what voltage is gas valve operates? - Answer -24V Powered by TCPDF (www.tcpdf.org)
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