Question 4432Deck General70% to pass
You are operating a liftboat. When beginning to jack down you should _______________.
AI Explanation
The correct answer is D) jack up first, then down.
When operating a liftboat, it is crucial to follow proper jacking procedures to ensure the stability and safety of the vessel. The correct sequence is to first jack up the liftboat, and then jack down. This ensures that the vessel is securely elevated before lowering the legs, preventing potential instability or tipping. Jacking down one leg at a time (option A) could compromise the vessel's stability, while jacking down without first jacking up (option D) would be an unsafe practice. Undog doors to the engine room (option B) and assembling personnel on the main deck (option C) are not directly related to the jacking procedure and are not the correct steps to take when beginning to jack down a liftboat.
Related Questions
#4430 To maintain a high state of readiness against the possibility of damage and subsequent flooding while aboard the DEEP DRILLER, you should _______________.#4431 You are operating a liftboat. When jacking down and free of the bottom you should _______________.#4433 For optimum stability during jacking operations, mat ballast tanks or spud cans should be _______________.#4434 If uniformly distributed in the cantilever pipe rack of the COASTAL DRILLER, how much pipe can be placed in the cantilever pipe rack area when the cantilever has been extended 40 feet aft of the transom? #4435 Lowering the hull of the COASTAL DRILLER and refloating should be done in favorable weather conditions with wave heights not more than _______________.