ESCO 608 Online Test Questions and
Answers 100% Pass
Which ASHRAE classification means slightly flammable? - ✔✔A2L, B2L
Which ASHRAE classification means No flammability? - ✔✔A1, B1
Which ASHRAE classification means High flammability? - ✔✔A3, B3
Which ASHRAE classification means low flammability? - ✔✔A2, B2
The compressor - ✔✔changes a low-pressure vapor to a high-pressure vapor.
The low-side test-pressure data-plate value should be used by a technician to determine
a safe pressure for - ✔✔leak testing
What has the highest Ozone Depletion Potential? - ✔✔CFC
What refrigerant has a GWP of "1"? - ✔✔R-1233zd
Which of the following refrigerants is an HFO? - ✔✔R-1234ze
The condenser - ✔✔changes a high-pressure vapor to a high-pressure liquid.
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, Reusable refrigerant containers under high-pressure must be hydrostatically tested how
often? - ✔✔5 years
Silicone elastomers, for use in seals and gaskets, are not compatible with which
refrigerants? - ✔✔HFO
System-dependent or passive recovery equipment - ✔✔Captures refrigerant into a non-
pressurized container.
Small appliances are equipped with a straight piece of tubing (process stub) that is used
- ✔✔As the installation location for a piercing-type access valve.
When using a system-dependent recovery system on an appliance that has an operating
compressor, the technician should - ✔✔Run the compressor and recover from the high
side of the system only.
Which HC refrigerant is allowed for use in NEW Domestic Small Appliances? - ✔✔R-
600A
If, after installing a fitting for the purpose of recovering the appliance's refrigerant, you
find that the system pressure is 0 psig - ✔✔Refrigerant recovery is not required.
When pressurizing a system with nitrogen you should - ✔✔charge through a pressure
regulator, install a relief valve in the line downstream from the pressure regulator.
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Answers 100% Pass
Which ASHRAE classification means slightly flammable? - ✔✔A2L, B2L
Which ASHRAE classification means No flammability? - ✔✔A1, B1
Which ASHRAE classification means High flammability? - ✔✔A3, B3
Which ASHRAE classification means low flammability? - ✔✔A2, B2
The compressor - ✔✔changes a low-pressure vapor to a high-pressure vapor.
The low-side test-pressure data-plate value should be used by a technician to determine
a safe pressure for - ✔✔leak testing
What has the highest Ozone Depletion Potential? - ✔✔CFC
What refrigerant has a GWP of "1"? - ✔✔R-1233zd
Which of the following refrigerants is an HFO? - ✔✔R-1234ze
The condenser - ✔✔changes a high-pressure vapor to a high-pressure liquid.
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, Reusable refrigerant containers under high-pressure must be hydrostatically tested how
often? - ✔✔5 years
Silicone elastomers, for use in seals and gaskets, are not compatible with which
refrigerants? - ✔✔HFO
System-dependent or passive recovery equipment - ✔✔Captures refrigerant into a non-
pressurized container.
Small appliances are equipped with a straight piece of tubing (process stub) that is used
- ✔✔As the installation location for a piercing-type access valve.
When using a system-dependent recovery system on an appliance that has an operating
compressor, the technician should - ✔✔Run the compressor and recover from the high
side of the system only.
Which HC refrigerant is allowed for use in NEW Domestic Small Appliances? - ✔✔R-
600A
If, after installing a fitting for the purpose of recovering the appliance's refrigerant, you
find that the system pressure is 0 psig - ✔✔Refrigerant recovery is not required.
When pressurizing a system with nitrogen you should - ✔✔charge through a pressure
regulator, install a relief valve in the line downstream from the pressure regulator.
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