单项选择题
A.righting arm B.metacentric height C.height of the uncorrected KG D.natural rolling period
Neglecting friction, you desire to life a 300 kgs weigh...
单项选择题Neglecting friction, you desire to life a 300 kgs weight with a stress on the hauling part of 100kgs.Which of the following tackles would you use ?（）.
A.Gun tackle B.Luff tackle C.Toe-fold tackle D.Double-luff tackle
Never（）stowed like this.A.optional cargo should beB.sho...
单项选择题Never（）stowed like this.
A.optional cargo should be B.should optional cargo be C.should be optional cargo D.should optional cargo
0f the following, the most important consideration for ...
单项选择题0f the following, the most important consideration for a tank vessel is（）.
A.GM B.the vertical center of gravity C.the longitudinal center of gravity D.the stress on the hull
