Not following the two-in/two-out rule can increase the risk of what?

• A. Increased water pressure.
• B. Shorter entry time.
• C. Reduced equipment weight.
• D. Increased risk of entrapment and delayed rescue.

Answer: (D)

Two-in/two-out is about having a built-in safety and rescue plan whenever firefighters enter a dangerous, smoke-filled environment. When two firefighters go in and two stay outside, there’s an immediate backup ready to assist, monitor conditions, and perform a rapid rescue if someone is overcome, runs out of air, or becomes trapped. Without that outside safety and rescue capability, the risk of entrapment rises and any rescue can be delayed, which is exactly what the rule is meant to prevent. The other options don’t connect to this safety practice: water pressure, entry timing, or gear weight aren’t governed by the two-in/two-out rule and don’t directly address the core safety need of having a ready rescue and accountability outside.