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
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
相关考题：
Cracks may be prevented from developing at the corners of welded plating inserts by ______.A.squaring the cornersB.rounding the cornersC.plug welding the cornersD.slot welding the corners
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 vesselB.reduce speedC.take a course which most eases the vesselD.All of the above
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 pointB.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 shellC.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 trimD.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
从水面到甲板之间的高度称之为干舷。（）A、The height from the bottom of a vessel to the weather deck is called freeboard.B、The depth from water level to the bottom of a vessel is called freeboard.C、The length from the bow to stern of a vessel is called freeboard.D、The height from water level to the main deck is called freeboard.
单选题（）is the depth of the vessel at ship’s side from the upper deck to the lowest point of the keel.AExtreme draftBMolded draftCExtreme depthDMolded depth
单选题The deck plating on a ship is supported primarily by deck longitudinals and deck（）.AgirdersBstanchionsCframesDbeams
单选题You must shift a weight from the upper tween deck to the lower hold. This shift will（）.Amake the vessel more tenderBmake the vessel stifferCincrease the rolling periodDdecrease the metacentric height
单选题Your vessel is damaged with no list，but down by the stern. There is progressive flooding and trim by the stern is increasing. What is the effect on transverse stability after the deck edge at the stern is submerged?（）AKB increases，increasing BM and therefore GMBKG increases due to the weight of the added water on deckCBM decreases from loss of water plane and greater volumeDThere is no effect on transverse stability
单选题What is likely to occur when you are surging synthetic mooring lines on the gypsyhead during mooring operations?（）AThe lines may jam and then jump off the gypsyheadBIf there is sudden strain on the line，the man tending the line may be pulled into the gypsyheadCThe lines' surging may cause the vessel to surgeDThe heat generated may cause the lines to temporarily fuse to the gypsyhead
单选题A well in the uppermost deck of a shelter deck vessel which has only a temporary means of closing for the purpose of gaining an exemption from tonnage measurement is called a（n）（）.AExemption spaceBTonnage deckCCofferdamDTonnage opening
单选题A crack in the deck plating of a vessel may be temporarily prevented from increasing in length by（）.Acutting a square notch at each end of the crackBdrilling a hole at each end of the crackCslot-welding the crackDwelding a doubler over the crack
单选题On every vessel，distress signals must be stowed（）.Aon or near the navigating bridgeBon the flying bridge not closer than 15 feet to any bulkheadCabove the freeboard deck away from heatDin an enclosed space below the freeboard deck away from heat
单选题An excessive amount of water is prevented from entering a vessel using a water lubricated stern tube bearing by the use of the （）.Apropeller hubBlignum vitaeCshaft packingDlabyrinth seal
单选题The lengthening of a crack formed in the shell plating of a ship may be prevented by （）.Awelding brackets across both ends of the crackBchipping out and slot welding the entire crackCdrilling a hole at each end of the crackDcutting a square notch at each end of the crack
单选题During the voyage from Dalian to Singapore, my vessel（）heavy damages to the deck fittings.AmaintainedBsustainedCpertainedDcontained
单选题You are on watch and the Pilot has the conn.The Master has temporarily gone below.The Pilot orders a course change which you are certain will put the vessel into imminent danger.Your first action should be to（）.ACountermand the order and immediately notify the MasterBMake an appropriate entry in the deck log concerning the Pilot's orderCImmediately call the Master and await further orders from himDImmediately sound a short ring on the general alarm
单选题When cargo is shifted from the main deck into the lower hold of a vessel，（）.AThe metacenter will move downwardBThe GM will increaseCThe center of buoyancy will move upwardDThe list of the vessel will become great
单选题In heavy weather you notice buckling in the midship deck plating of you vessel. To relieve the strain you could（）.Apump fuel oil from midships to the ends of the vesselBreduce speedCtake a course which most eases the vesselDAll of the above
单选题You are loading a cargo that includes cylinders of acetylene aboard your break bulk vessel. Which statement is true? （）AThe cylinders must be stowed at least 10 horizontal feet from corrosive materials in the same spaceBStowage in the upper deck-deck is considered to be the equivalent of on deck stowage for this cargoCThe cylinders must have a red label for flammability and a green label for compressed gasDThe cylinders may be protected from the radiant heat of the Sun by laying a tarp on them
单选题You will load and carry a bulk cargo of sulphur at ambient temperature. Which statement is true?（）.AWooden covers must be laid over the bilge wells to prevent the sulphur from entering the bilgesBBulk sulphur may be carried without a special permit providing the vessel complies with all applicable regulationsCThe majir charateristic of this cargo is that it forms sulfuric acid upon contact with waterDOther hazardous material may not be stowed in the same hold as the sulphur bue may carried on deck above the hold
单选题The garboard strake is the（）.Araised flange at the main deck edgeBriveted crack arrester strap on all-welded shipsCriveting pattern most commonly used in ship constructionDrow of plating nearest the keel
单选题The heavier outboard strake of deck plating on a ship is called the deck（）.AstiffenerBbeamCstringerDdoubler
单选题The purpose of cant frames in steel vessel is（）.ATo support the overhang of the sternBTo strength the plating against the pounding of the seaCTo add srength to the deck beams which support the weather deckDTo support the plating of a cylindrical tank
单选题Cracks may be prevented from developing at the corners of welded plating inserts by（）.Asquaring the cornersBrounding the cornersCplug welding the cornersDslot welding the corners
单选题The margin plate is the（）.Aoutboard strake of plating on each side of an innerbottomBouter strake of plating on each side of the main deck of a vesselCplate which sits atop the center vertical keelDuppermost continuous strake of plating on the shell of a vessel
单选题从水面到甲板之间的高度称之为干舷。（）AThe height from the bottom of a vessel to the weather deck is called freeboard.BThe depth from water level to the bottom of a vessel is called freeboard.CThe length from the bow to stern of a vessel is called freeboard.DThe height from water level to the main deck is called freeboard.
单选题The floors in a vessel’s hull structure are kept from tripping，or folding over，by（）.Aface platesBbottom longitudinalsClongitudinal deck beamsDtransverse deck beams