Question 1312 Deck General

The correct answer is B) 100 millimeters of water pressure. The reasoning is based on the regulations governing the design and operation of inert gas systems on vessels. According to the US Coast Guard regulations, the inert gas blower must be capable of maintaining a minimum pressure of 100 millimeters of water pressure in any cargo tank. This pressure is required to ensure that the cargo tanks are properly inerted and that the atmosphere within the tanks is maintained at a safe level to prevent the risk of explosions or fires. The other options are incorrect because 50 millimeters (A) is too low, while 150 millimeters (C) and 200 millimeters (D) are higher than the minimum required pressure specified in the regulations.