Question 944 Deck Safety

The correct answer is D) 4 tugs on the lifeline. The standard distress signal for a diver or worker wearing a breathing apparatus inside a tank is to give 4 strong tugs on the lifeline. This indicates to the tender or support personnel outside the tank that the worker is in distress and requires immediate assistance. The 4 tugs allow the tender to quickly recognize the distress signal and initiate the proper emergency response procedures. The other options (1, 2, or 3 tugs) would not be the recognized standard distress signal, and could potentially be missed or misinterpreted by the support personnel, delaying the emergency response.