A.Dead in the water
B.1 knot
C.10 knots
D.15 knots
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A.Starting with a dash and extending radially outward from the target
B.As a broken line from center of PPI to the target
C.Starting with a dot and extending radially inward from the target
D.Starting with a dash and extending to the right of the target
A.The Master of the vessel must be on the bridge when the radar is in use
B.The radar equipment is only required to be used in restricted visibility
C.The use of a radar excuses a vessel from the need of a look-out
D.This equipment must be used to obtain early warning of risk of collision
A.She must use this equipment to obtain early warning of risk of collision
B.The use of a radar excuses a vessel from the need of a look-out
C.The radar equipment is only required to be used in restricted visibility
D.The safe speed of such a vessel will likely be greater than that of vessels without radar
A.Radar ranges are less accurate in fog
B.Navigation buoys will always show up on radar
C.A sandy beach will show up clearer on radar than a rocky cliff
D.Small wooden boats may not show up on radar
A.It is more reliable than a fix based on radar bearings
B.It may be based on a single LOP or questionable data
C.When a 3-LOP fix plots in a triangle,the center of the triangle is the estimated position
D.It is usually based on soundings
最新試題
When using the ARPA in heavy rain,which action should you take? ()
()is not a job of the radar antenna.
When using a radar in a unstabilized mode,fixes are determined most easily from().
When will the float-free emergency position indicating radiobeacon be activated after abandoning ship? ()
Which statement is TRUE concerning a vessel equipped with operational radar?().
The()has a built-in world map; most areas are displayed on a scale of 4000 nm from the top to the bottom of the screen,and can be zoomed in to 150 nm.
Although manual plotting for CPA works well,the workload can become overwhelming when confronted with().
PPI is().
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? ()
Your ARPA has two guard zones.What is the purpose of the inner guard zone().