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单选题 should be used during the poor visibility if the radar screen shows heavy sea returns
学科：航海英语
时间：2024-06-12 01:26:11
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题目1单选题
The correct method of switching off a marine radar is to turn power switch to ( ) position first, then to ( ) positionA. off / standbyB. standby / offC. standby / closeD. close / standby
题目2单选题
To turn Gain control clockwise to the maximum will ( ) the screenA. cleanB. clutterC. sweepD. click
题目3单选题
should be used during the poor visibility if the radar screen shows heavy sea returnsA. Gain ControlB. Brilliant ControlC. Anti-clutter Sea ControlD. Sweep Intercept
题目4单选题
is used to lower receiver sensitivity at shorter range to reduce or eliminate sea clutter echoes, which are most prevalent around the vesselA. Anti-rain clutterB. Anti-sea clutterC. GainD. Sea clutter
题目5单选题
The true motion radar display is stabilized with ( )A. head-upB. north-upC. course-upD. unstabilized display
题目6单选题
For N-up and C-up presentation of marine radar, ( ) signal shall be connectedA. STWB. SOGC. COGD. HDG
题目7单选题
As the radar antenna scans through ( ) degrees a rotation, it can show where the target is relative to your positionA. 60B. 120C. 180D. 360
题目8单选题
Which of the following can be used to monitor the bearing of a radar target in relation to your locationA. the electronic bearing lineB. the variable range markerC. the anti-rain clutterD. the anti-sea clutter
题目9单选题
The VRM distance display will show the exact ( ) to the targetA. distanceB. directionC. angleD. altitude
题目10单选题
What is the purpose of VRM control on marine radarA. To measure bearing accuratelyB. To determine orientation accuratelyC. To adjust radar monitorD. To measure distance accurately
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