Engine 2014: Engineering Safety

1. A Rapid short blasts of the ship's whistle for a period of not less than 5 seconds, supplemented by the same signal on the general alarm bell.
2. B Rapid short blasts of the ships whistle for a period of not less than 10 seconds, supplemented by a continuous ringing of the general alarm bell.
3. C A long continuous blast of the ships whistle for a period of not less than 10 seconds, supplemented by the continuous ringing of the general alarm bell for not less than 10 seconds.
4. D A long continuous blast of the ships whistle for a period of not less than 5 seconds, supplemented by the same signal on the general alarm bell.

Tip: press A-D to answer