Question 938 Deck General

The correct answer is B) Certified Tankerman. A Certified Tankerman is the credential required for a person to serve as the person in charge during cargo transfer operations on a tank barge. This is specified in the US Coast Guard regulations under 46 CFR 13.201, which state that a Certified Tankerman is required to be present and in charge during the transfer of liquid cargo in bulk on a tank vessel. The other options are incorrect because Ordinary Seaman/Wiper and Able Seaman are general crew positions that do not have the specialized training and endorsement required to be in charge of cargo transfers. The Operator of Uninspected Towing Vessels credential is for operating the towing vessel itself, not specifically for the cargo transfer duties on a tank barge.