ANS:D - H/6

the separation distance between liquid fuel storage tanks is typically not defined as H/6. The most common guideline for minimum safe distance between two tanks is H/2, where H represents the height of the taller tank. However, some regulations or standards might specify different separation distances based on various factors such as tank size, type of fuel stored, local regulations, and safety considerations. It's crucial to consult relevant safety codes, regulations, or guidelines applicable to your specific situation to determine the appropriate separation distance between storage tanks.