单选题A crack in the deck plating of a vessel may be temporarily prevented from increasing in length by（）.A cutting a square notch at each end of the crackB drilling a hole at each end of the crackC slot-welding the crackD welding a doubler over the crack

In heavy weather you notice buckling in the midships deck plating of your vessel．To relieve the strain you could ______．

A.pump fuel oil from midships to the ends of the vessel

B.reduce speed

C.take a course which most eases the vessel

D.All of the above

A crack in the deck plating of a vessel may be temporarily prevented from increasing in length by___________.

A.cutting a square notch at each end of the crack

B.drilling a hole at each end of the crack

C.slot-welding the crack

D.welding a doubler over the crack

When weighing anchor in a rough sea，how would you avoid risk of damaging the bow plating ________．

A.Heave it home as fast as you can

B.Heave it home intermittently，between swells

C.Leave the anchor under foot，until the vessel may be brought before the sea

D.Wait for a calm spot between seas，then house it

In vessel construction, beam brackets are triangular plates that join the deck beam to a ____.

A.bulkhead

B.frame

C.stanchion

D.deck longitudinal

Which statement about the deck line is TRUE ________．

A.The top of the deck line is marked at the highest point of the freeboard deck，including camber，at the midships point

B.A vessel with wooden planks on a steel deck will have the deck line marked at the intersection of the upper line of the wood sheathing with the side shell

C.The deck edge is marked at the intersection of the freeboard deck with the side shell，at the lowest point of sheer，with the vessel at even trim

D.On a vessel with a rounded stringer-sheer plate，the deck line is marked where the stringer plate turns down from the plane of the deck line

Between the side frames on a vessel, suppot for the deck beam is provided by ______.

A.brackets

B.web frames

C.deck stringers

D.stanchions

Regulations concerning the stowage，lashing，and securing of timber deck cargoes aboard general cargo vessels may be found in the ______．

A.International Cargo Bureau Regulations

B.Load Line Regulations

C.Rules and Regulations for Cargo and Miscellaneous Vessels

D.Vessel's classification society rules and regulations

Lighter longitudinal stiffening frames on the vessel side plating are called ______.

A.stringers

B.side frames

C.side stiffeners

D.Intercostals