Why are signage and emergency lighting critical for egress during an explosive incident?

• A. They are decorative and not critical during an incident.
• B. They guide people to exits quickly, reducing confusion and exposure in poor visibility.
• C. They primarily serve to mark staff rest areas.
• D. They indicate the location of equipment rooms.

Answer: (B)

Signage and emergency lighting provide reliable guidance when visibility is compromised during an explosive incident. With power possibly out and smoke or debris reducing sight, illuminated exit signs and clearly marked routes steer people toward the nearest safe exits quickly. This reduces hesitation, confusion, and time spent in danger, lowering exposure to hazards like heat, debris, or a potential secondary blast. They also help occupants who are unfamiliar with the building or have limited mobility by giving a direct, easy-to-follow path. Decorative roles or marking non-escape areas don’t aid evacuation, so they’re not relevant to getting people out safely.