During the dock repair, when installing the tail shaft and p

During the dock repair,______should be measured firstly before tail shaft drawn out.

A.the sinking of tail shaft

B.the clearance of stern bearing

C.the total flexure of shaft

D.main engine crankshaft deflection

A. when installing SSD drives

B. when adding a new workload

C. when installing SATA drives

D. when adding more Linux hosts

Although a ship usually has repair in a shipyard, ________ is also necessary

A.the general repair on board

B.the voyage repair

C.the annual repair

D.the dock repair

When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?

A.The propeller hub taper and shaft keyway should be inspected for cracks or corrosion

B.The stern bearing alignment with the stern frame should be checked

C.The interior of the stern tube should be inspected for leaks

D.The shaft liner should be removed and inspected for cracks

A wobbling tail shaft is an indication of ______.

A.shallow water

B.an engine that is misfiring

C.a tight tail shaft gland

D.worn stern bearing or misalignment

A.Overhaul repair is a major repair.

B.Overhaul repair is carried out in a dock.

C.Overhaul repair is carried out once a year.

D.Overhaul repair is done for the purpose of rating.