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单选题
A line of position derived by radar range from an identified point on a coast will be a(n) （）.
A
straight line
B
arc
C
parabola
D
line parallel to the coast
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keeping a close watch and lookoutB
taking a radar range and bearingC
observing a radar target and listening to signalsD
keeping a well clear caution
考题
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circle of equal altitudeB
parallel of declinationC
parallel of altitudeD
vertical circle
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单选题What is the name of the movable，radial guide line used to measure direction on a radar?（）A
Compass roseB
CursorC
Plan position indicatorD
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单选题A navigator fixing a vessel’s position by radar （）.A
can use radar information from one object to fix the positionB
should never use radar bearingsC
should only use radar bearings when the range exceeds the distance to the horizonD
must use information from targets forward of the beam
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单选题Which signal is detected as originating from a SART?（）A
The Morse code distress series S-O-S repeated 3 times followed by DE and the vessel's call signB
A line of blip code on a radar screen outward from the SART's position along its line of bearingC
A line of blip code on a radar screen inward from the SART's position to its own ship along its line of bearingD
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单选题A star is observed at lower transit. The line of position derived from this sight is（）.A
on the prime verticalB
a latitude lineC
a longitude lineD
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单选题A line of position formed by sighting two charted objects in line is called a(n)（）.A
relative bearingB
range lineC
track lineD
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Sound one blast of the whistleB
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Construct a radar plotD
Sound the danger signal
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单选题A line of position derived from a loran reading is a section of a(n) （）.A
straight lineB
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单选题What does a SART signal sound or look like?（）A
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It will appear on a radar unit's PPI as a line of dots radiating outward with the innermost dot indicating the SART's positionC
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单选题What provides little or no indication that a vessel is dragging anchor? （）A
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单选题If there is any doubt as to the proper operation of a radar，which statement is TRUE?（）.A
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Starting with a dash and extending radially outward from the targetB
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单选题A radar range to a small，charted object such as a light will provide a line of position in which form? （）A
Straight lineB
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考题
单选题What does EPIRB stand for? （）A
Emergency Position Indicating Radar BuoyB
Electronic Pulse Indicating RadiobeaconC
Emergency Position Indicating RadiobeaconD
None of the above
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