What do you check in the dock bottom before refloating?
Sensors all uncovered
Tools + Equipment Removed
Plugs inserted + Tested
Sea chests + Gratings Replaced
Rudder + Propellors + Anodes Properly Placed
In the final inspection before flooding you find a dent/hole in the bottom plating. Actions?
Immediately inform dockmaster / captain / class
Perform Repairs
What condition of stability do you leave a drydock in?
The same as the one you went in
What document does the c/o need to sign at the end of a drydock?
Authority to flood certificate
How do you know that the bottom plugs are in properly after drydock?
Before flooding - Vacuum Test
After flooding - Sounding compartments
Where do you source the ballast for refilling the tanks prior departure from the dock?
Depends on the yard
Possibly you load the water in the dock
Possibly is pumped directly into the tanks
What do you need to do with the plugs before leaving a dry dock?
Vacuum Test them
How do you perform a vacuum test on plugs before leaving drydock?
Screw in Plug
Place gizmo over plug
Open valve to required pessure
Wait required time
Drain Vaccum
How are the bottom plugs tightened once they are placed back in the hull?
Using a bottom plug wrench, often this is also a torque wrench
How do you know the proper torque when replacing a bottom plug?
Its on the docking plan / ships manuals
If no figure available discuss with dockmaster
If you have joined ship mid-drydock how will you know the condition of stability the ship arrived in?
Handover Notes
Condition Printouts
Signficant structural changes were made to the ship during the drydock, what needs to be done after you leave?
Compass swing / Adjustment
The vessel had her hull scrubbed and propellor polished in drydock, what would you have expected to changed?
Fuel Consumption
If new equipment is being added to the bridge/monkey island, what do you need to be considering?
Compass safe distance (should be marked on the equipment / certificate)
How do you get the same condition of stability leaving drydock as you had arriving?
Ensure all tanks are loaded with the same weight
What will you monitor when the drydock is flooding?
Drafts
List
Cleanliness of dock water (Leaks)
How do you check the engines & machinery prior leaving the drydock?
Depends on the exact equipment, needs to be decided in conjunction with the dock master / surveyors etc
What needs to be checked after the vessel has departed the drydock?
Tanks + Void Spaces sounded
How can you protect against flooding when refolating in drydock?
Proper Check of bottom before flooding
Flood dock below ships floating level and sound all tanks to verify dry
Once you come out of drydock what needs to be updated?
SEEMP
Where do you find information of speed/fuel curves and energy consumption?
SEEMP
What does SEEMP stand for?
Ship Energy Efficiency Management Plan
Where does the requirement to have an SEEMP come from?
MARPOL Annex VI Air
What cert is assosciated with the SEEMP?
International Energy Efficiency Cert
