Refrigerant Quiz

We dealing with small systems, how many different refrigerants may be recovered into the same cylinder?

• only one

• only two

• any number as long as all are CFCs

• depends on the reclaim company

When operating refrigerant recovery or recycling equipment, the following precautions should always be followed.

• wear safety glasses

• wear protective gloves

• follow all safety precautions for the equipment

• all of the above

Of the refrigerants listed below, which types of refrigerants will not damage stratospheric ozone?

• CFCs

• HCFCs

• HFCs

• They all damage the ozone

When evacuating a system, the hoses should be:

• as short in length and as large in diameter as possible

• suitably sized to connect to a gauge manifold

• coiled and taped together

• colored red or blue to meet codes

Refrigerant leaves the condenser of an operating system as a:

• low pressure liquid

• low pressure vapor

• high pressure liquid

• high pressure vapor

If corrosion is found within the body of a relief valve, the valve must be:

• repaired

• reconditioned

• cleaned

• replaced

The Clean Air Act:

• sets a schedule for the phase out of CFC/HCFC production

• prohibits venting of refrigerants

• authorizes the EPA to set standards for recovery of refrigerants

• all of the above

Tags

NGSS.HS-ETS1-3

NGSS.HS-LS2-7

Measuring the system's final vacuum is always done with:

• the gas ballast wide open

• the vacuum pump operating

• the system being heated

• the system isolated and the vacuum pump off

A refillable refrigerant cylinder must never be filled to more than ________ of its capacity by weight:

• 70%

• 80%

• 90%

• 95%

Of the refrigerants listed below, which refrigerant type have the highest ozone depletion potential?

• HCFCs

• HFCs

• CFCs

• All are equal