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

Listening for hissing sounds only

Answer

Smelling the refrigerant odor

Answer

Checking for ice formation around fittings

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

Add more refrigerant to compensate for the leak

Answer

Seal the leak with epoxy and monitor the pressure

Answer

Advise the customer to check the refrigerant level monthly

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

Roll it on the bottom edge across the floor

Answer

Lay it on its side for stability

Answer

Carry it by the valve stem for better grip

Question 4

Refrigerant cylinders must be stored with valve caps:

Accepted Answer

Installed and tightly secured at all times when not in use

Answer

Removed to allow pressure relief

Answer

Replaced only when the cylinder is full

Answer

Optional — only required for transport

Question 5

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

Accepted Answer

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

Answer

Service pricing information

Answer

Certification test questions

Answer

EPA registration numbers

Question 6

What type of fire extinguisher is appropriate for an MVAC service area?

Accepted Answer

CO2 or dry chemical (ABC-rated) extinguisher

Answer

Water extinguisher only

Answer

Halon extinguisher only

Answer

Sand buckets — no chemical extinguishers