Question 1443 Deck General

The correct answer is A) The deck hand wheel indicator registers the approximate number of turns the tank valve has been opened. On tankers with manually operated tank valves, the deck hand wheel indicator is used to track the approximate number of turns the valve has been opened. This provides the crew with a rough estimate of the valve's position and the amount the tank is open, which is important for safely monitoring and controlling the flow of cargo. The other options are incorrect - the indicator does not provide information about the exact lift position of the valve disk (B), the oxygen content of the tank (C), or the level of oil in the tank (D).