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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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
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
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
A.a vessel towing by pushing ahead
B.a power-driven vessel,not towing
C.a barge being pushed ahead
D.either answer A or answer B
A.the towboat vibrates when backing down
B.the roostertail exceeds the height of the main deck
C.a strain is placed on the face wires
D.water comes over the foredeck of the lead barges
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