Question 790 Deck General

The correct answer is B) 0.5 psig. The requirement for the minimum pressure of the inert gas system during the discharge of a 30% hydrogen peroxide solution is specified in 46 CFR 153.500(b), which states that the inert gas system must maintain a minimum pressure of 0.5 psig in the cargo tank. This is to ensure that the cargo tank remains under a slight positive pressure to prevent the ingress of air, which could potentially lead to a hazardous situation. The other options are incorrect because: A) 3.0 psig is too high, C) atmospheric pressure is not sufficient to maintain the required positive pressure, and D) 5.0 psig is also too high.