單項(xiàng)選擇題You are transporting dangerous cargo on your vessel．You must inspect this cargo（）.

A.Daily
B.Daily，at sea only
C.After encountering rough weather
D.After loading and prior to arrival in port only


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1.單項(xiàng)選擇題While you are working in a space，the fixed CO2 system is accidentally activated．You should（）.

A.Secure the applicators to preserve the charge in the cylinders
B.Continue with your work as there is nothing you can do to stop the flow of CO2
C.Retreat to fresh air and ventilate the compartment before returning
D.Make sure all doors and vents are secured

2.單項(xiàng)選擇題Which statement is TRUE concerning the gooseneck（）.

A.It is a sailing maneuver which brings the vessel's head through the wind
B.It connects the boom to the mast and allows the boom to swing freely
C.It is a sailing condition where there is a loss of air flow over the sails
D.None of the above

3.單項(xiàng)選擇題Which cargo is considered volatile（）.

A.Bunker C
B.Turkey-red oil
C.Sweet oil
D.Iso-Propylamine

4.單項(xiàng)選擇題When oil is accidentally discharged into the water，what should you do after reporting the discharge（）.

A.Contain the oil and remove as much of it as possible from the water
B.Throw chemical agents on the water to disperse the oil
C.Throw sand on the water to sink the oil
D.Obtain your permit from the Corps of Engineers

5.單項(xiàng)選擇題When general cargo with different amounts in each draft is involved，the checker must use the （）.

A.unit method
B.block method
C.straight method
D.package method