Vertically below the deckline is a circle whose outside diameter is 300mm.It is called the().
A、the deck line
B、Plimsoll disc
C、Plimsoll line
D、summer load line
A、the deck line
B、Plimsoll disc
C、Plimsoll line
D、summer load line
A、center of gravity B、amidships station C、center of flotation D、geometric center of the waterplane area
A、A.center of gravity B、B.amidships station C、C.center of flotation D、D.geometric center of the waterplane area
A、vertically above the center of buoyancy B、vertically above the center of gravity C、at the intersection of the upright vertical centerline and the line of action of the buoyant force D、at the geometric center of the underwater volume
A、vertically above the center of buoyancy B、vertically above the center of gravity C、at the intersection of the upright vertical centerline and the line of action of the buoyant force D、at the geometric center of the underwater volume
A、A.vertically above the center of buoyancy B、B.vertically above the center of gravity C、C.at the intersection of the upright vertical centerline and the line of action of the buoyant force D、D.at the geometric center of the underwater volume
A、The deck below the lower deck is known as ‘tween deck. B、The deck below the main deck is known as ‘tween deck. C、The deck above the main deck is known as ‘tween deck. D、The deck below the lower deck is known as main deck.