问题：
[单选] At all angles of inclination，the true measure of a vessel’s stability is the（）.
metacentric height。displacement。righting moment。inclining moment。
问题：
[单选] Cross curves of stability show which of the following（）.
The righting arms at various angles of inclination and displacement。The metacentric height at large angles of heel。The height of the center of buoyancy at various angles。The metacentric radius at various displacement。
问题：
[单选] Fighting a fire in the galley poses the additional threat of（）.
contaminating food with extinguishing agent。spreading through the engineering space。loss of stability。a grease fire in the ventilation system。
问题：
[单选] If the cause of a sudden severe list is negative initial stability，counterflooding into empty tanks may（）.
increase the righting moment。cause an increase in the righting arm。bring the vessel to an upright equilibrium position。cause the vessel to flop to a greater angle。
问题：
[单选] In astern towing，a tow span，also called the tow bar or towing arch，is used to（）.
insure that the hawser leads directly aft as it passes over the stern of the towing vessel。increase the stability of the towing vessel by raising the hawser off the deck。reduce chafing of the towing hawser。prevent fouling of the hawser on deck gear located on the stern of the towing vessel。
问题：
[单选] Initial stability of a vessel may be improved by（）.
removing loose water。adding weight low in the vessel。closing crossover valves between partly filled double bottom tanks。All of the above。
问题：
[单选] Initial stability refers to stability（）.
at small angles of inclination。when loaded with minimum deck load。when at transit draft。when GZ is zero。
问题：
[单选] Repair of vital machinery and services on a ship should be accomplished（）.
after control of fire，flooding，and structural repairs。immediately。after control of fire，but before control of flooding。after stability is restored。
问题：
[单选] Stability is determined by the relationship of the center of gravity and the（）.
water depth。keel。center of flotation。center of buoyancy。
问题：
[单选] Stability is determined principally by the location of the center of gravity and the（）.
aft perpendicular。center of buoyancy。keel。center of flotatio。
