單項選擇題According to the regulations，what type of gauging is required for a cargo of butadiene? （）

A.Open
B.Restricted
C.Closed
D.None


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1.單項選擇題A vessel would be referred to as “stiff” when the weight of the cargo is（）.

A.evenly distributed vertically and the double bottoms are full
B.concentrated low and the double bottoms are empty
C.concentrated low and the double bottoms are full
D.concentrated high and the double bottoms are empty

2.單項選擇題A vessel transferring cargo while underway is classified by the Rules as a vessel（）.

A.restricted in her ability to maneuver
B.in special circumstances
C.not under command
D.constrained by her draft

3.單項選擇題A vessel loads 5000 tons of manganese ore. The railroad cars that brought the ore to the vessel were previously loaded with iron ore so the ore is contaminated. The agent requests the Master to sign a Clean Bill of Lading and in return the shipper will give him a Letter of Indemnity. What is the best procedure to follow? （）

A.Sign a Clean Bill of Lading and accept the Letter of Indemnity
B.Refuse to sign a Clean Bill of Lading
C.Sign the Clean Bill of Lading and have the agent countersign it
D.Sign a Clean Bill of lading under protest

4.單項選擇題A single vessel being towed alongside shall exhibit（）.

A.one all-round white light
B.sidelights and a stern light
C.only the outboard sidelight and a stern light
D.a masthead light，sidelights，and a stern light

5.單項選擇題A single line of position combined with a dead-reckoning position results in a(n)（）.

A.estimated position
B.assumed position
C.fix
D.running fix