单项选择题The number of rowing oars that must be carried in a motor-propelled open lifeboat on a cargo vessel is().

A.determined by the Master
B.specified by the Coast Guard
C.specified by the manufacturer
D.None


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1.单项选择题The most likely location for a liquid cargo fire to occur on a tanker would be().

A.in the pumproom
B.at the vent header
C.at the main deck manifold
D.the midships house

2.单项选择题A vessel puts into the port of Kobe,Japan to discharge cargo. While awaiting completion of the cargo operation,the vessel contracts with a local shipyard to have the hull chipped,scaled,and painted. How is the cost of this maintenance handled with the Collector of Customs?()

A.A declaration is required and duty is involved on the total cost
B.No declaration is required since this is considered routine maintenance
C.A declaration is made and duty is charged on the materials only
D.A declaration is made,but duty is charged on the labor only

3.单项选择题A vessel is equipped with cross-connected deep tanks. In which situation should the cross-connection valve be closed? ()

A.The tanks lie above the waterline and are filled
B.The tanks are partially filled with dry cargo
C.The tanks are partially filled with liquid cargo
D.The tanks are filled and lie below the waterline

4.单项选择题A sling psychrometer is a(n)().

A.type of cargo gear
B.instrument used in celestial navigation
C.instrument used to measure relative humidity
D.instrument used to measure specific gravity

5.单项选择题A high cube container would most likely be used to stow().

A.dense bulk cargoes
B.household appliances
C.fragile cargoes
D.heavy industrial machinery

6.单项选择题A claim for cargo damages may be held against the shipowner if such damage is the result of failure of the ship’s officers to().

A.ensure the fitness and safety of cargo spaces
B.ensure adequate packaging of the cargo
C.prevent delays due to quarantine restrictions
D.correct all defects in the ship's construction

7.单项选择题A charterer is unable to complete the loading of a vessel during the lay days specified in the charter party. Under these circumstances,the().

A.vessel operator can collect demurrage
B.ship is authorized extra time to discharge the cargo
C.charterer must pay dispatch money
D.effective period of the charter is extended

8.单项选择题A cargo tank that is initially gas freed,can be inerted by introducing inert gas by a process known as().

A.dilution
B.displacement
C.precipitation
D.Either A or B

9.单项选择题A “wet cargo” refers to().

A.a cargo that will be damaged if it gets wet
B.bulk liquids
C.cargoes that will cause condensation
D.liquids in containers

10.单项选择题A “strongback” refers to a().

A.bar securing a cargo port
B.centerline vertical bulkhead
C.deep beam
D.spanner stay