In radar plotting C.P.A.is the abbreviation of().
A、closest point to approach
B、close point to approach
C、crossing point to approch
D、coming point to approach
A、closest point to approach
B、close point to approach
C、crossing point to approch
D、coming point to approach
A、she can be observed by radar B、she can be observed visually from the other vessel Cshe can be plotted on radar well enough to determine her heading D、her fog signal can be heard
A、she can be observed by radar B、she can be observed visually from the other vessel Cshe can be plotted on radar well enough to determine her heading D、her fog signal can be heard
A、Radar ranges are less accurate in fog B、Navigation buoys will always show up on radar CA sandy beach will show up clearer on radar than a rocky cliff D、Small wooden boats may not show up on radar
A、Sound one blast of the whistle B、Alter course to starboard CConstruct a radar plot D、Sound the danger signal
A、A.Sound one blast of the whistle B、B.Alter course to starboard CC.Construct a radar plot D、D.Sound the danger signal
A、Their bearing is almost constant,even when the true bearing of the contact changes appreciably B、They always appear on a bearing of 90°from the true bearing of the contact CThe indirect echoes usually appear in shadow sectors D、When plotted,their movements are usually abnormal
A、A.Their bearing is almost constant,even when the true bearing of the contact changes appreciably B、B.They always appear on a bearing of 90°From the true bearing of the contact CC.The indirect echoes usually appear in shadow sectors D、D.When plotted,their movements are usually abnormal