单项选择题

Air gap is the vertical distance between the bottom of the hull and the（）.

A.still water level
B.wave crest
C.wave crest plus the charted water depth and tidal corrections
D.wave crest plus the charted water depth and tidal correction and storm surge

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单项选择题

According to regulations，access to a cargo pumproom in a tanker carrying grades C or D liquid cargo shall be（）.

A.from areas equipped with power ventilation
B.only from enclosed areas free from sources of vapor ignition
C.from the open deck
D.from within the vessel

单项选择题

Access to a cargo pumproom on a tanker carrying grades A，B，C or D liquid cargoes shall be（）.

A.at least 13.1 feet away from the galleys，living quarters or navigation spaces
B.from the open deck
C.only from areas equipped with power ventilation systems
D.isolated from any part of the vessel which normally contains sources of vapor ignition

单项选择题

A vessel has an amidships superstructure. Which location would be most suitable for on-deck stowage of automobiles?（）.

A.On top of No.1 hatch
B.Beside the hatches，forward of the midships house
C.On top of the hatch immediately forward of the midships house
D.On top of the hatch immediately aft of the midships house