單項選擇題Which factor must be considered when determining the order of loading of dissimilar products through the same piping system aboard a tanker? （）

A.Contamination of the cargo
B.Flash points
C.Reid vapor pressures
D.Specific gravities


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1.單項選擇題Which element(s) should be taken into account in the preparation of the “Cargo Securing Manual”?（）

A.Weight of the vehicles
B.Geographical area of the voyage
C.Dynamic forces under adverse weather conditions
D.All of the above

2.單項選擇題Which can be prevented only by segregating two lots of cargo into separate holds? （）

A.Contamination of dry cargo by a wet cargo
B.Contamination of a clean cargo by a dirty cargo
C.Contamination of a food cargo by an odorous cargo
D.Overcarriage，overstowage，and short landing

3.單項選擇題Which action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?（）

A.The tank must be gas freed
B.The tank must be ballasted
C.The tank must be vented to the atmosphere
D.The bypass valve must also be closed

4.單項選擇題When the dew point of the outside air is lower than or equal to the dew point of the air in the cargo hold，you should（）.

A.secure all ventilation
B.shut down the exhaust blowers
C.shut down the intake blowers
D.ventilate the cargo holds

5.單項選擇題When referring to dry bulk cargoes，the term “flow state”（）.

A.designates the state of a commodity when the ship is heeled past the angle of repose
B.relates to the suitability of loading a cargo by flowing down inclined chutes
C.refers to the saturation of a dry bulk product with water to the point where it acts as a liquid
D.relates to the minimum granule size of a particular product where it will flow like a liquid at an angle of 30°