單項(xiàng)選擇題

A flooded leg on a liftboat would adversely affect the vessel’s stability underway by（）.

A.increasing the righting moment
B.decreasing the vessel's displacement
C.increasing the reserve buoyancy
D.shifting the CG (center of gravity) off center

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單項(xiàng)選擇題

A fixed carbon dioxide extinguishing system for a machinery space，designed WITHOUT a stop valve in the line leading to the protected space，is actuated by（）.

A.one control
B.two controls
C.three controls
D.none of the above

單項(xiàng)選擇題

A fishing vessel displaying the lights shown is（）.

A.anchored
B.underway but not fishing
C.tending a small fishing boat
D.fishing by trawling

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A flooded leg on a liftboat would adversely affect the vessel’s stability underway by（）.

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A fixed carbon dioxide extinguishing system for a machinery space，designed WITHOUT a stop valve in the line leading to the protected space，is actuated by（）.

A fishing vessel displaying the lights shown is（）.

A fixed carbon dioxide extinguishing system for a machinery space，designed WITHOUT a stop valve in the line leading to the protected space，is actuated by（）.