A.heavy rain within six hours
B.a decrease in wind velocity
C.a change in the present weather conditions
D.that fog will soon set in
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A.Straight line
B.Arc
C.Parabola
D.Hyperbola
A.large GM
B.high center of gravity
C.excessive free surface
D.small GZ
A.In the lower level of the pumproom
B.In the middle level of the pumproom
C.In the upper level of the pumproom
D.On the deck outside the pumproom
A.atmospheric pressure
B.wind speed
C.relative humidity and dew point
D.wind chill factor
A.stern is drawn to the bank as the bow sheers off
B.bow sheers toward the bank
C.vessel continues in a straight line，but with greatly reduced maneuverability
D.vessel will be drawn bodily into the bank unless the engines are stopped
最新試題
To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.
An orange flag showing a black circle and square is a（）.
The information on（）is not likely found in The Mariners Handbook.
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.
The information on ocean voyage planning with routeing details for powered and sailing vessels is likely found in（）.
Mean high water is the average height of（）.
Aboard a survival craft，ether can be used to（）.
After launching，an inflatable raft should be kept dry inside by（）.
Important changes to charts and lights（including temporary ones），radio signals and sailing directions are listed in（）.
Mariners not entering the port are（）to keep at least one mile off.