Buried mortars shall be separated by which distance?

Buried mortars shall be separated by which distance?

• A. 2 inches
• B. 1/2 the diameter of the mortar
• C. The greater of 2 inches or half the diameter of the mortar
• D. 3 inches

Answer: (C)

Spacing buried mortars is sized to prevent interaction and reduce risk from blast effects, increasing with the mortar’s diameter. The rule is to keep the distance at least the greater of two inches or half the mortar’s diameter. So if the mortar is 4 inches in diameter, you space them 2 inches apart; for an 8-inch mortar, you space 4 inches apart; a 2-inch mortar still requires 2 inches minimum. This approach provides a safe buffer that scales with size, helping prevent cross-ignition, fragmentation hazards, and damage to neighboring mortars.

Spacing buried mortars is sized to prevent interaction and reduce risk from blast effects, increasing with the mortar’s diameter. The rule is to keep the distance at least the greater of two inches or half the mortar’s diameter. So if the mortar is 4 inches in diameter, you space them 2 inches apart; for an 8-inch mortar, you space 4 inches apart; a 2-inch mortar still requires 2 inches minimum. This approach provides a safe buffer that scales with size, helping prevent cross-ignition, fragmentation hazards, and damage to neighboring mortars.