Flanking rudders effect a vessel’s heading because of the ______.A.effect of the propeller flow on the ruddersB.water flow due to the vessel’s movement through the waterC.tunnel affect of the water flow past opposing ruddersD.discharge current being channeled to impinge on the vessel’s deadwood
Flanking rudders effect a vessel’s heading because of the ______.
A.effect of the propeller flow on the rudders
B.water flow due to the vessel’s movement through the water
C.tunnel affect of the water flow past opposing rudders
D.discharge current being channeled to impinge on the vessel’s deadwood
相关考题：
The command MEET HER means the helmsman should ______.A.decrease the rudder angleB.steer more carefullyC.use rudder to slow the vessel’s swingD.note the course and steady on that heading
A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?A.When dead in the water，it is often difficult to find the neutral position and slight headway or sternway may resultB.When going directly from full ahead to full astern，there is complete steering controlC.When the vessel has headway and the propeller is in neutral，there is no effect on rudder controlD.When maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM
Upon underwater detection，there were no apparent defects on the bottom plates，bilge keels，rudder and propeller of the said vessel．This kind of wording usually appeared on ______.A.ship surveyor's reportB.a ship's certificateC.a cargo inspection reportD.a diver survey report
A vessel is equipped with twin propellers，both turning outboard with the engines half ahead.If there is no wind or current and the rudders are amidships，what will happen?A.The bow will swing to starboardB.The bow will swing to portC.The vessel will steer a zigzag courseD.The vessel will steer a fairly straight course
On a vessel with a single propeller，transverse force has the most effect on the vessel when the engine is put ______．A.full aheadB.full asternC.half aheadD.slow astern
Which magnetic compass corrector（s）can be set while the vessel is on a heading of magnetic north or magnetic south ________．A.Quadrantal spheresB.Heeling magnetsC.Flinders barD.Fore-and-aft magnets
Heeling error is defined as the change of deviation for a heel of ______．A.2° while the vessel is on an intercardinal headingB.1° while the vessel is on a compass heading of 000°C.2° and is constant on all headingsD.1° while the vessel is on a compass heading of 180°
As the displacement of a vessel increases,. the detrimental effect of free surface ______.A.increasesB.decreasesC.remains the sameD.may increase or decrease depending on the fineness of the vessel’s form
In midocean，the characteristics of a wave are determined by three factors．What is NOT one of these factors?A.Effect of the moon’s gravityB.FetchC.Wind velocityD.Length of time a wind has been blowing
单选题A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?（）.AWhen dead in the water，it is often difficult to find the neutral position and slight headway or sternway may resultBWhen going directly from full ahead to full astern，there is complete steering controlCWhen the vessel has headway and the propeller is in neutral，there is no effect on rudder controlDWhen maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM
单选题On open waters，a vessel fishing is in a crossing situation with a vessel sailing located on the fishing vessel’s starboard side. Which vessel is the stand-on vessel?（）.AThe fishing vessel because it is to port of the sailing vesselBThe fishing vessel because it is fishingCThe sailing vessel because it is to starboard of the fishing vesselDThe sailing vessel because it is sailing
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A single-screw vessel going ahead tends to turn more rapidly to port because of propeller（）.Adischarge currentBsuction currentCsidewise forceDthrust
单选题As the displacement of a vessel increases, the detrimental effect of free surface（）.AincreasesBdecreasesCremains the sameDmay increase or decrease depending on the fineness of the vessel's form
单选题A tug is to assist in docking an oceangoing vessel on a hawser. The greatest danger to the tug is （）.Afrom the ship's propeller when making up aftBfrom being overrun if making up forwardChull damage while alongside passing a hawserDgetting in a tripping position
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Flanking rudders effect a vessel’s heading because of the（）.Aeffect of the propeller flow on the ruddersBwater flow due to the vessel's movement through the waterCtunnel affect of the water flow past opposing ruddersDdischarge current being channeled to impinge on the vessel's deadwood
单选题Upon underwater detection, there were no apparent defects on the bottom plates, bilge keels,rudder and propeller of the said vessel. This kind of wording usually appeared on（）.Aship surveyor's reportBa ship's certificateCa cargo inspection reportDa dive survey report
单选题The compass heading of a vessel differs from the true heading by（）.Acompass errorBvariationCmagnetic dipDdeviation
单选题Which magnetic compass corrector（s）can be set while the vessel is on a heading of magnetic north or magnetic south（）.AQuadrantal spheresBHeeling magnetsCFlinders barDFore-and-aft magnets
单选题The heading of a vessel is indicated by what part of the compass? （）ACardBNeedleCLubber's lineDGimbals
单选题Variation is the angular measurement between（）.Acompass north and magnetic northBcompass north and true northCmagnetic meridian and the geographic meridianDyour vessel's heading and the magnetic meridian
单选题Inspection of a vessel’s propeller during dry-dock should include （）Anoting the condition of the fairwaterBinspection of the keywayClogging inspection results in the official deck logDall of above
单选题A vessel is equipped with twin propellers，both turning outboard with the engines half ahead. If there is no wind or current and the rudders are amidships，what will happen?（）AThe bow will swing to starboardBThe bow will swing to portCThe vessel will steer a zigzag courseDThe vessel will steer a fairly straight course.
单选题A current perpendicular to a vessel’s track has the greatest effect on the vessel’s course made good（）.Aat high vessel speedsBat low vessel speedsCin shallow waterDin deep water
单选题The effect of free surface on initial stability depends upon（）.Athe amount of liquid in the compartmentBthe dimensions of the liquid surface and the vessel's displacementConly the length of the compartmentDthe vertical position of the liquid in the vessel
单选题On a vessel with a single propeller，transverse force has the most effect on the vessel when the engine is put（）.Afull aheadBfull asternChalf aheadDslow astern