A fire pump on a MODU requires 175 psi discharge pressure to maintain the required 50 psi pitot tube pressure at the two highest hydrants. The maximum setting for the relief valve is __________.

Correct Answer: Option C — 200 psi

Under 46 CFR 108.419, if a fire pump can develop pressures exceeding the design working pressure of the system, a pressure relief valve must be installed. The relief valve setting must not exceed 25 psi above the pressure required at the pump discharge (175 psi + 25 psi = 200 psi).