A.tree or log awash in a nearly vertical position
B.crew member who refuses to work
C.upstream end of a land wall
D.buoy that is adrift
您可能感興趣的試卷
你可能感興趣的試題
A.high pressure system
B.low pressure system
C.high dew point
D.low dew point
A.At
B.In
C.During
D.With
A.Gain Control
B.Brilliant Control
C.Anti-clutter Sea Control
D.Sweep Intercept
A.KEYLOCK
B.REPEATER
C.STATIC INVERTER
D.ANTI-CLUTTER-SEA
A.As many as
B.So many as
C.As much as
D.As more as
最新試題
A radar contact will remain stationary on a relative motion radar display only when it is（）.
Error may be introduced into a magnetic compass by（）.
A Doppler speed log indicates speed over ground（）.
A radar display which is oriented，so that north is always at the top of the screen，is called a(n)（）.
You are using a radar in which your own ship is shown at the center，and the heading flash always points to 0°. If bearings are measured in relation to the flash，what type of bearings are produced?（）.
The radar component that generates the radio-frequency energy in the form of short powerful pulses is which of the following?（）.
A Doppler log in the bottom return mode indicates the（）.
How is variation indicated on a small-scale nautical chart?（）.
（）should be used during the poor visibility if the radar’s screen shows heavy sea returns.
An ECDIS is required to display which information?（）