Semisubmersibles A and B are identical. However，A is more tender than B. This means that A relative to B has a（）.

单项选择题Progressive flooding may be indicated by（）.

A.ballast control alarms
B.excessive draft
C.excessive list or trim
D.a continual worsening of list or trim

单项选择题Pitching is angular motion of the vessel about what axis?（）.

A.Longitudinal
B.Transverse
C.Vertical
D.Centerline

单项选择题On a vessel proceeding from a very cold to a warm climate with a cargo of a nonhygroscopic nature in the holds，which is TRUE?（）.

A.Danger of heavy ship sweat exists； constant and vigorous ventilation is required
B.There is danger of heavy cargo sweat if outside air is introduced by ventilation
C.There is little danger of ship's sweat，slight possibility of cargo sweat； moderate ventilation is needed
D.The possibility of any sweat problem，either cargo or ship，is remote

单项选择题It would be possible that part of the cargo got（）as great change in the weather during the voyage caused heavy（）in the hold.

A.damp／water
B.dampness／sweater
C.wet／condensation
D.wetness／dew

单项选择题In order to determine the trimming arm for your vessel at any particular draft，which of the following would you compare?（）.

A.Longitudinal center of buoyancy and longitudinal center of gravity
B.Longitudinal center of floatation and longitudinal center of gravity
C.Longitudinal center of floatation and longitudinal center of buoyancy
D.Longitudinal tipping center and longitudinal center of gravity