單項選擇題All the holds which are to take cereals in bags must be so cleaned that thay meet the requirements of the（）.

A.local agent
B.crgo surveyor
C.accident investigator
D.general average adjuster


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1.單項選擇題Although KG for a vessel in lightweight is relatively high, the vessel is stiff because（）.

A.KM is small
B.KM is high
C.BL is smal
l D.KB is large

2.單項選擇題An inert gas system installed on a tanker is designed to（）.

A.aid in the stripping and cleaning of cargo tanks
B.increase the rate of discharge of cargo
C.force toxic and explosive fumes from a cargo tank to vent to the outside atmosphere
D.lower the oxygen levels inside cargo tanks, making explosion nearly impossible

3.單項選擇題An inert gas system is designed to reduce the possibility of tank explosions by（）.

A.eliminating sparks and fire in the vicinity of cargo tanks
B.removing all hydrocarbon gases from the cargo tanks
C.blanketing cargo tanks with inert foam
D.reducing the oxygen concentration below levels necessary for combustion

5.單項選擇題An unstable upright equilibrium position on a vessel means that the mrtacenter is（）.

A.lower than the center of gravity
B.at the same height as the center of gravity
C.heigher than the baseline
D.on the longitudinal centerline