You must evacuate crewmembers from a space filling with smoke. In illustration D039SA below what fire control plan symbol designates the primary means of escape?

Correct Answer: Option A — 61

Symbol 61 denotes primary vertical means of escape on standard marine fire control plans conforming to IMO Resolution A.654(16). Clear identification of escape routes ensures personnel can evacuate smoke-filled compartments safely without disorientation during shipboard emergencies.