Deck 2014: Safety

1. A the total weight in air of the casing string is removed from the MODU
2. B the hook load (weight of the casing string) is removed from the MODU
3. C the weight of the casing inside the riser is removed from the MODU
4. D the weight of the casing string added to the weight of the  fill-up mud is removed from the MODU

Tip: press A-D to answer