EPA 609 Safety & Environmental Practices 2

Question 1

Which method is recommended for detecting refrigerant leaks?

Accepted Answer

Using an electronic leak detector, UV dye, or soapy water solution

Answer

Electronic detectors, UV dye with a black light, and soapy water are all acceptable methods for locating MVAC system leaks.

Question 2

If a significant leak is discovered after charging, what should the technician do?

Accepted Answer

Recover the refrigerant, repair the leak, evacuate, and recharge

Answer

Leaks must be repaired before recharging — operating with known leaks releases refrigerant to the atmosphere and will damage the system.

Question 3

What is the correct way to move a refrigerant cylinder?

Accepted Answer

Use a hand truck and keep it upright with the valve protected

Answer

Cylinders must be kept upright, secured to a hand truck, and never dragged, dropped, or moved by the valve to prevent damage.

Question 4

Refrigerant cylinders must be stored with valve caps:

Accepted Answer

Installed and tightly secured at all times when not in use

Answer

Valve caps protect the valve from damage that could cause rapid, uncontrolled refrigerant release — they must be in place whenever the cylinder is not actively connected.

Question 5

What does MSDS (now called SDS) provide for refrigerants?

Accepted Answer

Safety data including hazards, first aid, storage, and disposal information

Answer

Safety Data Sheets provide comprehensive information on chemical hazards, handling, storage, emergency procedures, and disposal requirements for refrigerants.

EPA 609 - EPA Section 609 Refrigerant Certification Practice Test

EPA 609 - EPA Section 609 Refrigerant Certification Practice Test

EPA 609 Safety & Environmental Practices 2