A2L Emergency Procedures for Leaks and Fires 2

Question 1

If a large A2L refrigerant leak is detected in an enclosed space, what is the first action?

Accepted Answer

Evacuate the area, ventilate the space, and eliminate ignition sources before re-entering

Answer

Attempt to find and repair the leak immediately

Answer

Turn off all lights to prevent ignition

Answer

Spray water on the leak area

Question 2

What type of fire extinguisher is recommended for an A2L refrigerant fire?

Accepted Answer

Dry chemical (ABC) or CO2 extinguisher

Answer

Water only

Answer

Foam extinguisher only

Answer

No extinguisher — A2L fires cannot be extinguished

Question 3

What toxic byproduct is produced when A2L refrigerants burn or decompose from high heat?

Accepted Answer

Hydrogen fluoride (HF) — a highly corrosive and toxic gas

Answer

Carbon monoxide only

Answer

Ammonia

Answer

No toxic byproducts are produced

Question 4

A technician detects a refrigerant odor in a mechanical room. The leak detector reads above the LFL. What should they NOT do?

Accepted Answer

Use a cell phone or radio to call for help while still in the room

Answer

Leave the room immediately

Answer

Call for emergency ventilation

Answer

Prop open the door for ventilation

Question 5

What emergency information should be readily available at any job site where A2L refrigerants are being serviced?

Accepted Answer

Safety Data Sheets (SDS), emergency contact numbers, evacuation routes, and the location of fire extinguishers and ventilation controls

Answer

Only the equipment manual

Answer

Just a first aid kit

Answer

Only the refrigerant label

Question 6

If a person is exposed to high concentrations of A2L refrigerant vapor, what first aid should be administered?

Accepted Answer

Move them to fresh air immediately, monitor breathing, and seek medical attention

Answer

Have them drink milk to neutralize the chemicals

Answer

Apply ice packs to their chest

Answer

There is no health risk from A2L refrigerant exposure