单选题The TPC curve，one of the hydrostatic curves in a vessel’s plans，gives the number of tons（）.A necessary to change the angle of list 1°at a given draftB necessary to change trim 1 cm at a given draftC pressure per square cm on the vessel's hull at a give

What is(are) standard operating procedure(s) used on a Ro-Ro vessel?

A.Periodic inspection and retensioning of lashings as required during voyage

B.Lashings may be completed after the vessel leaves port

C.One QMED assigned to oversee the initial loading and lashing

D.All of the above

A vessel is overtaking when she can see which light(s) of a vessel ahead?

A.Only the stern light of the vessel

B.One sidelight and a masthead light of the vessel

C.Only a sidelight of the vessel

D.The masthead lights of the vessel

A head on situation shall be deemed to exist at night when a power-driven vessel sees another power-driven vessel ahead and ______.

A.one sidelight and the masthead light are visible

B.the vessels will pass closer than half a mile

C.both vessels sound one prolonged blast

D.both sidelights and masthead light(s) are visible

For a floating vessel, the center of flotation is the point in the waterplane ______.

A.about which the vessel lists and trims

B.which coincides with the center of buoyancy

C.which, in the absence of external forces, is always vertically aligned with the center of gravity

D.which is shown in the hydrostatic tables as VCB

An overtaking situation at night would be one in which one vessel sees which light(s) of a vessel ahead ?______.

A.Masthead lights and sidelights

B.One sidelight, the masthead lights and stern-light

C.Both sidelights

D.Stern-light

When backing down with sternway，the pivot point of a vessel is ______.

A.about one-quarter of the vessel's length from the stern

B.at the bow

C.about one-third of the vessel's length from the bow

D.aft of the propellers

Fire protection regulations for towing vessels require that drills be conducted on board the vessel as if there were an actual emergency．Drills include all of the following，EXCEPT ______．

A.testing all alarm and detection systems

B.breaking out and using the vessel's emergency equipment

C.participation by selected crew members

D.one person putting on protective clothing，if the vessel is so equipped

A head-on situation at night is one in which you see dead ahead a vessel showing ______.

A.one sidelight

B.one sidelight and a masthead light

C.one sidelight and two masthead lights

D.both sidelights of a vessel and her masthead light(s)

Approaching a anchorage in fog, you hear one short, one prolonged, and one short blast in that sequence on a ship’s whistle. This indicates ______.

A.A vessel towed

B.A vessel not under command and unable to maneuver.

C.A vessel anchored giving warning of her position.

D.A vessel stopped dead in the water.