Which code corresponds to Explosion?

• A. Fhmc
• B. Fexp
• C. Fgas
• D. Fdet

Answer: (B)

In this dispatch coding system, the leading letter F marks Fire, and the following letters specify the specific type of incident. Explosion is abbreviated as exp, so the code for an explosion is Fexp. This makes the code immediately clear to responders: it’s a fire-related incident with an explosion event, signaling high hazards, potential secondary fires, and structural issues that need rapid, specialized response.

The other codes point to different incident types, such as a gas-related situation or a detector activation, which would require different response priorities. So Fexp is the best match for an explosion because it uses the standard abbreviation for explosion after the fire category.