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
The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the ______．
A.boss
B.knuckle
C.skeg
D.strut
相关考题：
While your vessel is docked port side to a wharf，a sudden gale force wind causes the vessel's stern lines to part. The stern begins to fall away from the dock，and no tugs are immediately available. Which measure(s) should you take FIRST?A.Notify the engineroom of the need for propulsionB.Shut down any cargo transfer that's in progressC.Let go the port anchor and veer to a short scope of chainD.Obtain assistance from the terminal to put new stern lines out
A vessel is overtaking when she can see which light(s) of a vessel ahead?A.Only the stern light of the vesselB.One sidelight and a masthead light of the vesselC.Only a sidelight of the vesselD.The masthead lights of the vessel
A vessel or object being towed astern shall display a(n) ______.A.forward masthead lightB.after masthead lightC.stern lightD.All of the above
On a vessel，the keel is the primary strength member of the lower hull form in which direction ________．A.TransverseB.DiagonalC.LongitudinalD.Vertical
An overtaking situation at night would be one in which one vessel sees which light(s) of a vessel ahead ?______.A.Masthead lights and sidelightsB.One sidelight, the masthead lights and stern-lightC.Both sidelightsD.Stern-light
单选题The name and hailing port of a documented commercial vessel is（）.Anot required to be marked anywhere on the vesselBrequired to be marked on both bows and on the keelCrequired to be marked on the stern with the name of the vessel marked on both bowsDrequired to be marked on the keel，stern，and both bows
单选题A vessel’s quarter is that section which is（）.AabeamBdead asternCjust aft of the bowDon either side of the stern
单选题While your vessel is docked port side to a wharf，a sudden gale force wind causes the vessel’s bow lines to part.The bow begins to fall away from the dock，and no tugs are immediately available.Which measure（s）should you take FIRST（）.ACall the Master and the deck gangBSlip the stern lines，let the vessel drift into the river，and then anchorCLet go the starboard anchorDObtain assistance and attempt to put some new bow lines out
单选题0n a single-screw vessel the stern frame（）.Afurnishes support to the rudder, propeller shaft, and transom frameBprovides foundations for after mooring winchesCprovides foundation for the main propulaion enginesDtransfers the driving force of the propller to the hull
单选题On a single-screw vessel the stern frame（）.Afurnishes support to the rudder，propeller shaft，and transom frameBprovides foundations for after mooring winchesCprovides foundations for the main propulsion enginesDtransfers the driving force of the propeller to the hull
单选题Upon receipt of a distress message，a merchant vessel is bound to proceed to the scene of the distress. Under which of the following cases would this NOT be true?（）AThe vessel would arrive at the distress scene more than 36 hours after the receipt of the initial distress messageBThere are vessels closer to the distress scene that are proceeding to assistCThe Master of the vessel in distress has requisitioned another vessel，and that vessel has accepted the requisitionDYou are on a tank vessel and the distress involves a major fire on board the other vessel
单选题The vessel or other goods upon which the Works have been carried out must be（）from the Repairer’s worksite within 3 days after the invoice date or in accordance with other written notification by the Repairer to the Customer.AselectedBcollectedCdetectedDeffected
单选题0n a vessel, the keel is the primary strength member of the lower hull form in which direction?（）.AtransverseBdisagonalClongitudinalDvertical
单选题Sidewise force of the propeller tends to throw a vessel’s stern to the right or left，depending on rotation. This force is caused by（）.Aback current from the rudderBgreater pressure on the right or left side of the propeller，depending on rotationClower pressure on the right or left side of the propeller，depending on rotationDtorque from the velocity and angle at which the surrounding water impinges upon the propeller blades
单选题The temperature （） a liquid changes its state from liquid to gas depends upon the liquid itself and upon the pressure （） it is subjected in the containing vessel.Aat which/to whichBfrom which/at whichCto which/from whichDin which/on which
单选题The effect known as bank cushion acts in which of the following ways on a single-screw vessel proceeding along a narrow channel? （）AIt forces the bow away from the bankBIt forces the stern away from the bankCIt forces the entire vessel away from the bankDIt heels the vessel toward the bank
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On a vessel，the keel is the primary strength member of the lower hull form in which direction?（）.AtransverseBdiagonalClongitudinalDvertical
单选题A situation has occurred in which your vessel must be towed. When the towing vessel passes the towing line to you，you should secure the line（）.Ato the base of the foremastBto the forward-most bittsCto the forward part of the deckhouseDat the stern
单选题An overtaking situation at night would be one in which one vessel sees which light(s) of a vessel ahead?（）AMasthead lights and sidelightsBOne sidelight，the masthead lights and stern lightCBoth sidelightsDStern light
单选题A vessel is overtaking when she can see which light(s) of a vessel ahead?（）AOnly the stern light of the vesselBOne sidelight and a masthead light of the vesselCOnly a sidelight of the vesselDThe masthead lights of the vessel
单选题Upon receipt of a distress message，a merchant vessel is bound to proceed to the scene of the distress. Under which of the following cases would this NOT be true?（）AThe vessel would arrive at the distress scene more than 36 hours after the receipt of the initial distress messageBThere are vessels closer to the distress scene that are proceeding to assistCThe Master of the vessel in distress has requisitioned another vessel，and that vessel has accepted the requisitionDYou are on a tanker and the distress involves a major fire on board the other vessel
单选题How does the effect known as bank suction act on a single-screw vessel proceeding along a narrow channel?（）.AIt pulls the bow toward the bankBIt pushes the entire vessel away from the bankCIt pulls the stern toward the bankDIt heels the vessel toward the bank
单选题The port of registry is（）.Anot required to be marked anywhere on the vesselBrequired to be marked on both bows and on the keelCrequired to be marked on the stern with the name of the vessel marked on both bowsDrequired to be marked on the keel, stern, and both bows
单选题While your vessel is docked port side to a wharf，a sudden gale force wind causes the vessel’s stern lines to part. The stern begins to fall away from the dock，and no tugs are immediately available. Which measure(s) should you take FIRST?（）ANotify the engineroom of the need for propulsionBShut down any cargo transfer that's in progressCLet go the port anchor and veer to a short scope of chainDObtain assistance from the terminal to put new stern lines out
单选题When jumping into water upon which there is an oil-fire，you should（）.Abreak the water surface with your hands when diving head-firstBuse your hands to hold your knees to your chestCcover your eyes with one hand while pinching your nose shut and covering your mouth with the otherDenter the water at the bow or stern on the windward side of the vessel