Deck: Safety

1. A alternating short and long blasts on the ship's whistle
2. B continuous sounding of the ship's whistle and the general alarm for at least 10 seconds
3. C more than 6 short blasts and 1 long blast on the whistle, and the same signal on the general alarm
4. D 1 short blast on the whistle

Tip: press A-D to answer