According to the regulations，the capacity of a liferaft is required to be marked（）.

单项选择题According to the regulations for mobile offshore drilling units，“industrial personnel” are considered to be all persons carried on the ship for the sole purpose of carrying out the industrial business of the unit，except for（）.

A.the operator's representative
B.the crew required by the Certificate of Inspection
C.the galley personnel
D.the designated person in charge

单项选择题A ship must report a collision with an aid to navigation maintained by the Coast Guard to which office?（）

A.Nearest Oceanographic office
B.The Marine Safety Center at Coast Guard Headquarters
C.National Ocean Service
D.Nearest Officer in Charge，Marine Inspection

单项选择题A load line for a ship is assigned by the（）.

A.Minerals Management Service
B.Department of Energy
C.Corps of Engineers
D.A recognized classification society approved by the Coast Guard

单项选择题A chain stripper is used to（）.

A.prevent chain from clinging to the wildcat
B.clean the marine debris from the chain
C.flake chain from a boat's chain locker
D.clean chain prior to an x-ray inspection