PKP extinguisher placement distance from LOX servicing area?

• A. Within 50 feet
• B. Within 10 feet
• C. Within 100 feet
• D. Within 5 feet

Answer: (A)

The main idea is to ensure a fire extinguisher is both readily accessible and appropriate for the risk environment around LOX servicing. LOX areas are highly oxidizing, so a quick and effective response is essential, but the extinguisher must also be placed where it won’t interfere with servicing operations or suffer damage from cryogenic spills.

A PKP extinguisher is a portable, quick-acting device commonly used for aircraft fires, including those that can occur near oxygen systems. Placing it within about 50 feet provides a balance: it’s close enough to be deployed rapidly if a small fire starts, yet far enough away to avoid being in the immediate hazard zone or obstructing the LOX servicing work.

If it were placed much closer than that, it could be in the path of cryogenic spills or get in the way of servicing equipment. If it were placed much farther away, the time to reach and apply the extinguisher could be too long to prevent a fire from growing. The other distance options would either impose unnecessary proximity risks or impede a swift response.