The bottom of the mast rests on a part of the keel called the mast ______.A.footB.heelC.stepD.sole
The bottom of the mast rests on a part of the keel called the mast ______.
A.foot
B.heel
C.step
D.sole
相关考题：
在油船上，------因素影响油气排放。A.风向和风力；卸货速度；P/V阀或惰气桅(MAST RISER)的高度和位置B.风向和风力；装货速度；P/V阀或惰气桅(MAST RISER)的高度和位置C.风向和风力；装货速度；P/V阀或惰气桅(MAST RISER)的数量和状态
The upward slope of a vessels bottom from the keel to the bilge is called ______.A.camberB.sheerC.rakeD.rise of bottom
Which fitting is used to connect the boom to the mast?A.Clevis pinB.Gunter-lugC.GooseneckD.Transom
The upward slope of a ships bottom from the keel to the bilge is known as ______.A.camberB.slopeC.deadriseD.keel height
The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the ______．A.bossB.knuckleC.skegD.strut
（）(富余水深) is the depth remaining under a ship’s bottom.A、Under-keel heightB、Under-keel clearanceC、Under-keel draftD、Under-keel depth
单选题How should you try to right a capsized small sailing vessel?（）APosition all personnel at the stern and rock the vessel uprightBPosition all personnel around the mast and lift the vessel uprightCLock the centerboard in the down position，stand on the centerboard，and pull on a shroud or a halyardDPut the centerboard in the up position and have all personnel haul in on the line attached to the mast
单选题MV ATLANTIC 0200UTC POSN 33.55N 127.22E COURSE 088 DEGS SPEED 12.5 KTS SAILOR FELL FROM MAST SERIOULY WOUNDED AT HEAD. This cable says that（）.Athe wounded had nothing wrong with his headBthe injury was not serousCthe injury happened at the mast headDa sailor injured at his head
单选题The main advantage and chief characteristic of a Steulchen boom is that it can be（）.Aoperated by one winchmanBcradled on deckCswung from one hatch to the adjacent hatchDcollared to the mast
单选题The upward slope of a ships bottom from the keel to the bilge is known as（）.AcamberBslopeCdeadriseDkeel height
单选题A shroud is（）.Aany wire running fore-and-aft on a shipBany wire with a fiber coreCa heavy wire extending from the trunk of the mast to the head of the boomDa heavy wire extending from the mast，atwartships to the deck，to support the mast
单选题The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the（）.AbossBknuckleCskegDstrut
单选题The hinge fitting used to attach the boom to the mast is the（）.AgooseneckBstepCswivelDpintle
单选题The （）(烟囱和大桅) stand on deck like a guard.Afunnel and mastBweather deckCgangway chainDderrick and mast
单选题The upward slope of a vessels bottom from the keel to the bilge is called（）.AcamberBsheerCrakeDrise of bottom
单选题（）(富余水深) is the depth remaining under a ship’s bottom.AUnder-keel heightBUnder-keel clearanceCUnder-keel draftDUnder-keel depth
单选题What fitting on the mast works in conjunction with the shrouds to control side bend of the mast?（）AChainplateBHoundCCrowfootDSpreader