EPA 609 Safety & Environmental Practices

Question 1

What personal protective equipment (PPE) should be worn when handling refrigerants?

Accepted Answer

Safety glasses and gloves rated for refrigerant exposure

Answer

No PPE is required for small amounts

Answer

Full hazmat suit and supplied air respirator

Answer

Only a face shield is needed

Question 2

What should be done immediately if liquid refrigerant splashes in your eyes?

Accepted Answer

Flush immediately with large amounts of water for 15 minutes and seek medical attention

Answer

Rub the eyes to remove the refrigerant

Answer

Apply eye drops and wait to see if symptoms resolve

Answer

Cover the eye and continue working

Question 3

Refrigerant stored in a hot environment (above 125°F/52°C) poses what risk?

Accepted Answer

Cylinder pressure increases and may cause rupture or pressure relief valve activation

Answer

The refrigerant becomes less effective

Answer

The refrigerant converts to a different chemical compound

Answer

No significant risk at these temperatures

Question 4

What hazardous gas can form when refrigerant contacts an open flame or very hot surface?

Accepted Answer

Phosgene or hydrofluoric acid gas

Answer

Carbon monoxide

Answer

Nitrogen dioxide

Answer

Ozone

Question 5

Refrigerant work areas should have:

Accepted Answer

Adequate ventilation to prevent refrigerant accumulation at floor level

Answer

Sealed windows to prevent refrigerant from escaping outside

Answer

Heating to keep refrigerant in vapor form

Answer

Negative air pressure to prevent refrigerant release

Question 6

What symptom indicates possible refrigerant overexposure?

Accepted Answer

Dizziness, headache, or irregular heartbeat

Answer

Increased energy and alertness

Answer

Skin redness only

Answer

Improved vision and hearing