A.Slightly higher fuel consumption
B.Lack of directional control when backing
C.Inefficient at high shaft RPM
D.Some unusual handling characteristics
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A.A long swell from an unusual direction
B.A lengthy lull in the wind and seas
C.Large seas coming from different directions
D.A brisk chop from the southeast
A.Excessive pitching
B.Excessive yawing
C.Excessive rolling
D.No change should be evident
A.reduce the time the sounding tube is open
B.avoid creating a spark
C.lessen the effect of roll or pitch on the reading
D.lessen the effect of heave on the reading
A.reducing rolling
B.increasing rolling
C.reducing yawing
D.increasing yawing
A.pumped overboard to calm the seas
B.drained to the lower hull to reduce free surfaces
C.filled to ensure that sufficient fuel oil is available during a lengthy emergency
D.partially drained to increase free surfaces in order to reduce motions
最新試題
The main reason a long towline is used during an oceantow is that（）.
When preparing a ship for heavy weather，fuel oil day tanks should be（）.
The distance between rivets in a row is known as the（）.
The pitch of a propeller is a measure of the（）.
Which statement is TRUE of a stiff vessel? （）
When a deck cargo is secured with chain or wire lashings and grab (pear) links，which statement is FALSE?（）
Which statement is TRUE concerning a towing vessel which，due to the nature of her work，is unable to keep out of the way of another vessel?（）
Which characteristic is a disadvantage of a controllable- pitch propeller as compared to a fixed-pitch propeller? （）
When running before a heavy sea，moving weights aft will affect the handling of a vessel by （）.
The area around Cape Charles is（）.