A.varies depending upon the bearing used
B.is the angular difference between magnetic north and compass north
C.is published on the compass rose on most nautical charts
D.is the angular difference between geographic and magnetic meridians
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A.RINGS INT
B.SWEEP INT
C.REPEATER
D.GONIOMETER
A.ZERO CLEARING
B.ANTI-CLUTTER-RAIN
C.DIMMER
D.CURSOR
A.bearing circle
B.pelorus
C.bearing bar
D.alidade
A.spider element
B.sensitive element
C.link arm
D.pickup transformer
A.high or low
B.AC or DC
C.strong or weak
D.on or off
最新試題
The（）transmits own ship data cyclically via two defined VHF channels and receives the same data of the other ships and objects that are equipped with AIS systems.
Which statement concerning GPS is TRUE（）.
The information received by AIS will be displayed on（）.
What does not contribute to the commercial GPS receiver position error（）.
The receiver uses（）satellites to compute latitude，longitude，altitude，and velocity．
If the radio signal ground wave extends out for less distance than the minimum skywave distance，there is an area in which no signal is received．This is called the（）.
Which of the following statements is TRUE regarding automatic identification systems（AIS）（）.
Radar makes the most accurate determination of the（）.
The time interval between the transmission of signals from a pair of Loran-C stations is very closely controlled and operates with（）.
Would you mind（）your DF?