HVAC Certification Practice Tests Questions
With Solutions
Higher the ambient temperatures, ____ will be the evacuation time of the refrigerants from the
system Lesser
1 Watt is equal to 3.41 Btu's
Heat that is absorbed or extracted when a substance changes its state is Latent heat
Where is the sight glass present in the refrigeration cycle? Liquid line
Which shall not be used near flammable materials? Halide leak detector
Current in a closed circuit is limited by: Resistance
When there is an increase in the heat load on the evaporator, the refrigerant will tend to evaporate
at a _____ rate Faster
At what voltage is gas valve operates? 24V
Furnaces are placed into categories based upon Venting characteristics
With Solutions
Higher the ambient temperatures, ____ will be the evacuation time of the refrigerants from the
system Lesser
1 Watt is equal to 3.41 Btu's
Heat that is absorbed or extracted when a substance changes its state is Latent heat
Where is the sight glass present in the refrigeration cycle? Liquid line
Which shall not be used near flammable materials? Halide leak detector
Current in a closed circuit is limited by: Resistance
When there is an increase in the heat load on the evaporator, the refrigerant will tend to evaporate
at a _____ rate Faster
At what voltage is gas valve operates? 24V
Furnaces are placed into categories based upon Venting characteristics
