Question 4428 Deck General

70% to pass

You are operating a liftboat. When jacking down and a leg becomes stuck on the bottom, you should _______________.

A raise the free legs all the way
B use the engines to rotate about the leg that is stuck
C jack the barge down part way to pull the leg free
D submerge the barge completely to give added pull
AI Explanation

The correct answer is C) jack the barge down part way to pull the leg free. When a liftboat leg becomes stuck on the bottom, the best course of action is to carefully lower the barge part way down to pull the leg free, rather than raising the free legs or attempting to rotate the barge. Jacking the barge down part way generates a pulling force that can dislodge the stuck leg, without fully submerging the barge which could lead to stability issues. The other options, such as raising the free legs or using engines to rotate, are not recommended as they could make the situation worse by putting additional strain on the stuck leg. The key is to use the jacking system in a controlled manner to free the leg without compromising the stability and safety of the liftboat.

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