Type II

Type II certification applies to

• high and very high pressure refrigerants

• low pressure refrigerants

• appliances with charges less than 5 pounds

• low pressure chillers

Recovery speed can be increased by

• placing the recovery vessel in hot water

• placing the recovery vessel in ice water

• using an over-sized recovery cylinder

• using longer hoses leading to the recovery cylinder

After the installation of a refrigeration system, the technician should first

• evacuate the system

• pressure test the system using refrigerant

• pressure test the system using dry nitrogen

• charge the system using the proper refrigerant

What maintenance task must always be done to recovery/recycle equipment?

• change the system oil if it has it and filters after each use

• vacuum test the equipment after every system recovery

• pressure test the equipment after every system recovery

• change the pressure gauges after every 25 recovery cycles

What type of leak detection device is used to pinpoint a leak?

• electronic leak detector

• soap bubbles

• halide torch

• ultrasonic leak detector

An open compressor that has sat for several moths is most likely

• not operate due to seized bearings

• to leak from the shaft seal

• to need a hard start kit

• to need to have it's oil changed

Two indications that a high pressure system has a leak

• oil traces on flared fittings and high super heat

• low super heat and bubbles in the sight glass

• high head pressure and low super heat

• low super heat and low sub-cooling

The EPA defines a major repair as

• replacing a compressor

• replacing an evaporator

• replacing a condenser

• all of the above

Under the exceptions to required evacuation levels, an appliance can be evacuated 0 psi when

• the appliance is being thrown away

• the repair consists of a condenser replacement

• the required levels cannot be reached due to leaks

• all of the above

Refrigerant should be recovered as

• vapor first

• liquid first

• liquid from the low side first

• vapor from the the low side first