Question 1317 Deck General

The correct answer is C) 8%. The maximum allowable oxygen content within the ship's cargo tanks, inert gas piping, and the vapor recovery system is 8%. This is in accordance with the regulations set by the US Coast Guard for the operation of vessels carrying flammable or combustible cargo. Maintaining the oxygen content below 8% helps prevent the risk of explosions or fires by ensuring the atmosphere in these enclosed spaces remains inert and non-flammable. The other options are incorrect as they do not align with the Coast Guard's established standards. 4% (A) and 5% (B) are too low, while 10% (D) is too high and would create a potentially hazardous situation.