單項選擇題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


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1.單項選擇題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

2.單項選擇題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

3.單項選擇題If the metacentric height is small，a floating vessel will（）.

A.be tender
B.have a quick and rapid motion
C.be stiff
D.yaw

4.單項選擇題If the metacentric height is large，a floating vessel will（）.

A.be tender
B.have a slow and easy motion
C.be stiff
D.have a tendency to yaw

5.單項選擇題If a vessel takes a sudden，severe list or trim from an unknown cause，you should FIRST（）.

A.determine the cause before taking countermeasures
B.assume the shift is due to off-center loading
C.counterflood
D.assume the cause is environmental forces