Leeway is the ______.A.difference between the true course and the compass courseB.momentum of a vessel after her engines have been stoppedC.lateral movement of a vessel downwind of her intended courseD.displacement of a vessel multiplied by her speed
Leeway is the ______.
A.difference between the true course and the compass course
B.momentum of a vessel after her engines have been stopped
C.lateral movement of a vessel downwind of her intended course
D.displacement of a vessel multiplied by her speed
相关考题:
The distance between any two meridians measured along a parallel of latitude and expressed in miles is the ______.A.difference in longitudeB.mid-longitudeC.departureD.meridian angle
On a nautical chart,the inner ring of a compass rose indicates ______.A.true directionsB.compass errorC.deviationD.magnetic directions
The most accurate method of determining gyrocompass error while underway is by ______.A.Comparing the gyro azimuth of a celestial body with the computed azimuth of the bodyB.Comparing the gyro heading with the magnetic compass headingC.Determining from the chart the course made good between celestial fixesD.It cannot be determined accurately at sea due to drift of unknown currents
A vessel is wind rode when it is ______.A.at anchor and heading into the windB.backing into the windC.carrying lee rudderD.necessary to apply a leeway correction to the course
Compass error is equal to the ______.A.deviation minus variationB.variation plus compass courseC.combined variation and deviationD.difference between true and magnetic heading
Deviation is the angle between the ______.A.true meridian and the axis of the compass cardB.true meridian and the magnetic meridianC.magnetic meridian and the axis of the compass cardD.axis of the compass card and the degaussing meridian
If a magnetic compass is not affected by any magnetic field other than the Earth’s which statement is TRUE?______.A.Compass error and variation are equalB.Compass north will be true northC.Variation will equal deviationD.There will be no compass error
Magnetic compass deviation______.A.varies depending upon the bearing usedB.is the angular difference between magnetic north and compass northC.is published on the compass rose on most nautical chartsD.is the angular difference between geographic and magnetic meridians
Magnetic heading differs from compass heading by______.A.compass errorB.true headingC.variationD.Deviation
Magnetic dip is a measurement of the angle between the ______.A.geographic pole and the magnetic poleB.lubber’s line and true northC.horizontal and the magnetic line of forceD.compass heading and the magnetic heading
单选题The difference between magnetic heading and compass heading is called().AvariationBdeviationCcompass errorDdrift
单选题A vessel is wind rode when it is().Aat anchor and heading into the windBbacking into the windCcarrying lee rudderDnecessary to apply a leeway correction to the course
单选题If a magnetic compass is not affected by any magnetic field other than the Earth’s,which statement is TRUE? ()ACompass error and variation are equalBCompass north will be true northCVariation will equal deviationDThere will be no compass error
单选题When changing from a compass course to a true course you should apply().AvariationBdeviationCvariation and deviationDa correction for the direction of current set
单选题Deviation is the angle between the().Atrue meridian and the axis of the compass cardBtrue meridian and the magnetic meridianCmagnetic meridian and the axis of the compass cardDaxis of the compass card and the degaussing meridian
单选题As a vessel changes course to starboard,the compass card in a magnetic compass().Aremains aligned with compass northBalso turns to starboardCfirst turns to starboard then counterclockwise to portDturns counterclockwise to port
单选题The lubber’s line of a magnetic compass().Aalways shows true north directionBindicates the vessel's headingCis always parallel to the vessel's transomDis located on the compass card
单选题When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass,which action should be taken?()AThe course change should be made rapidly to prevent transient induced magnetism while passing the intercardinal headingsBAfter the new heading is reached,the vessel should steam on that course for at least two minutes before the adjustmentCDuring the course change,you should gently tap the compass to remove any error caused by friction on the pivot bearingDAfter steadying on the new heading,the compass card should be slewed by a magnet and allowed to oscillate freely to remove any gaussin error
单选题The most accurate method of determining gyrocompass error while underway is by().AComparing the gyro azimuth of a celestial body with the computed azimuth of the bodyBComparing the gyro heading with the magnetic compass headingCDetermining from the chart the course made good between celestial fixesDIt cannot be determined accurately at sea due to drift of unknown currents
单选题If the gyrocompass error is east,what describes the error and the correction to be made to gyrocompass headings to obtain true headings?()AThe readings are too low (small numerically) and the amount of the error must be added to the compass to obtain trueBThe readings are too low and the amount of the error must be subtracted from the compass to obtain trueCThe readings are too high (large numerically) and the amount of the error must be added to the compass to obtain trueDThe readings are too high and the amount of the error must be subtracted from the compass to obtain true
单选题Leeway is the().Adifference between the true course and the compass courseBmomentum of a vessel after her engines have been stoppedClateral movement of a vessel downwind of her intended courseDdispla ement of a vessel multiplied by her speed
单选题ECDIS must be able to perform all of the following EXCEPT().Adetermine true bearing and distance between two geographical pointsBdetermine magnetic compass deviationCtransform a local datum to the WGS-'84 datumDconvert graphical coordinates to display coordinates
单选题Magnetic compass deviation().Avaries depending upon the bearing usedBis the angular difference between magnetic north and compass northCis published on the compass rose on most nautical chartsDis the angular difference between geographic and magnetic meridians
单选题Compass error is equal to the().Adeviation minus variationBvariation plus compass courseCcombined variation and deviationDdifference between true and magnetic heading
单选题Leeway is the().Adifference between the true course and the compass courseBmomentum of a vessel after her engines have been stoppedClateral movement of a vessel downwind of her intended courseDdisplacement of a vessel multiplied by her speed