Question 1063 Deck General

The correct answer is D. According to U.S. regulations, access to a cargo pumproom in a tank vessel carrying grades C or D liquid cargo must be from the open deck. This is because the regulations require that cargo pumprooms handling these types of flammable liquid cargoes must have direct access to the open deck to allow for proper ventilation and to minimize the risk of vapor ignition. Options A, B, and C are incorrect because they do not meet this open-deck access requirement.