Question 1472 Deck General

The correct answer is C) close valves by closing them down, reopening one or two turns, and re-closing. This is the correct procedure for safely closing valves when loading a tanker. By partially reopening the valves after closing them, it allows the pressure to equalize, preventing damage to the valves and pipeline system. This helps ensure a safe and controlled loading operation. The other options are incorrect: A) keeping the seamen on standby is not a necessary safety function, B) loading one tank at a time is not required, and D) keeping a strain on the loading hoses does not address the proper valve closure procedure.