Engine 2014: Engineering Safety

1. A three short blasts on the whistle or three rings on the general alarm
2. B more than six short blasts and one long blast on the whistle and the same signal on the general alarm
3. C rapid ringing of the ship's bell and general alarm for at least 10 seconds
4. D four long blasts on the whistle and the same on the general alarm

Tip: press A-D to answer