A.incorrect image
B.distinctive image
C.pictorial image
D.pictographic image
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你可能感興趣的試題
A.with
B.to
C.for
D.of
A.should not be made
B.are not to be taken
C.should be taken
D.shall be made
A.used
B.available
C.in use
D.can be used
A.unwanted interference
B.unexpected figures
C.abnormal data
D.unwanted information
最新試題
Your ARPA has been tracking a target and has generated the targets course and speed.The radar did not receive a target echo on its last two scans due to the weather.What should you expect under these circumstances（）.
Which general statement concerning radar is FALSE?（）.
When navigating in thick fog with the radar on，you should（）.
You are underway at 5 knots and see on your radar a contact 10 miles directly astern of you. 12 minutes later，the contact is 8 miles directly astern of you. What is the estimated speed of the contact? （）
When using an ARPA，what should you consider in order to evaluate the information displayed?（）
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? （）
When using a radar in a unstabilized mode，fixes are determined most easily from（）.
Which statement is true concerning a vessel equipped with operational radar?（）.
Although manual plotting for CPA works well，the workload can become overwhelming when confronted with（）.
（）typically extends from close as 0.1 nautical miles out to 32 NM.