Return From Winter Break Assessment Flashcard

Front

How should refrigerant blends be charged?

Back

As a liquid

Front

HFC refrigerants contain which of the following? Chlorine, Fluorine, & Hydrogen; Hydrogen, Chlorine, & Carbon; Hydrogen, Fluorine, & Carbon

Back

Hydrogen, Fluorine, & Carbon

Front

In the event of a large release of CFC, HCFC, or HFC refrigerant in a contained area which of the following is true? Safety googles and lined butyl gloves are sufficient., Self-contained breathing apparatus (SCBA) or leaving the area is required., Respiratory protection is not required., Dust masks are sufficient.

Back

Self-contained breathing apparatus (SCBA) or leaving the area is required.

Front

Which of the following refrigerants contain chlorine? R-22, R-134a, R-410a, R-1234yf

Back

R-22

Front

EPA does NOT require technicians (or the company employing the technician) to keep which of the following records when disposing of appliances with 5-50 pounds of refrigerant? Options: The model and serial number of the appliance., The type of refrigerant recovered., The quantity of refrigerant, by type, recovered from disposed appliances in each calendar month., The quantity of refrigerant by type, sent for reclamation or destruction.

Back

The model and serial number of the appliance.

Front

Which refrigerant does not contain chlorine? Options: R-134a, R-12, R-22, R-124

Back

R-134a

Front

What is the name of the EPA's program that identifies refrigerants with lower overall risks to human health and the environment?

Back

The Significant New Alternatives Policy (SNAP) Program.

Front

Which refrigerant depletes the ozone layer? R-717, R-744, R-22, R-32

Back

R-22

Front

During servicing of a refrigeration system containing either R-22 or R-410A, the refrigerant must be:

Back

Recovered

Front

How does cooling occur in direct expansion vapor compression refrigeration systems? Options: When the refrigerant vapor turns into a liquid., When the refrigerant is under maximum pressure., When the liquid refrigerant is vaporized., When the refrigerant gives off heat.

Back

When the liquid refrigerant is vaporized.