If MR Aft shock indicator is tripped how far do personnel have to evacuate for a safe zone?

• A. 984 ft (300 m)
• B. 1,500 ft
• C. 300 ft
• D. 2,000 ft

Answer: (A)

When the MR Aft shock indicator trips, the priority is to move personnel to a predefined safe zone that provides protection from the blast, shock overpressure, and any debris that could be produced in an aft-shock event. The designated distance for this situation is 300 meters (about 984 feet). This specific range is chosen because it offers the needed clearance to reduce exposure risks while keeping operations feasible. Distances shorter than this may not fully protect against the hazard, while much larger distances would unnecessarily slow mission activity. So evacuating to 984 ft (300 m) is the correct, safety-grounded distance.