Functions aboard a tanker or tank barge such as connecting，disconnecting，and topping off must be supervised by（）.

单项选择题Fueling results in the collection of waste oil in drip pans and containers. Which is an approved method of disposing of the waste oil? （）

A.Draining it overboard when the vessel gets underway
B.Placing it in proper disposal facilities
C.Adding sinking agents and discharging it into the water
D.Mixing it with dispersants before draining it overboard

单项选择题Except as provided for otherwise，an oil tanker might discharge certain amount at certain rate of oil or oily mixtures into sea when（）.

A.the tanker is within 50 nautical miles from the nearest land
B.the tanker is no more than 50 nautical miles from the nearest land
C.the tanker is more than 50 nautical miles from the nearest land
D.the tanker is not more than 50 nautical miles from the nearest land

单项选择题Every wrongful act willfully committed by the master or crew against their vessel and her cargo defines（）.

A.Negligence
B.Barratry
C.Piracy
D.Mutiny

单项选择题Either（）may be discharged on the ground of impossibility of performance or on the ground of delay，where no breach of contract by either party has taken place.

A.contract
B.party
C.person
D.company

单项选择题Compliance with the terms of the load line certificate on a vessel is the responsibility of the（）.

A.Ballast Control Operator
B.Barge Supervisor
C.Master or Offshore Installation Manager
D.operators representative