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单选题 What is the purpose of VRM control on marine radar
学科：默认课程
时间：2025-10-20 13:26:41
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题目1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
题目2单选题
Radar makes the most accurate determination of the_____A. direction of a targetB. distance to a targetC. size of a targetD. shape of a target
题目3单选题
Gyro compass has become one indispensable instrument in almost all merchant ships for its ability to detect the direction of___A. true northB. magnetic northC. ships' trackD. relative motion
题目4单选题
Despite the rising importance and great convenience of the gyrocompass, the magnetic compass still retains its importance because of its____A. great convenienceB. finding true northC. magnetic characteristicD. simplicity and reliability
题目5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6单选题
Which of the following does NOT belong to the steaming error of a gyrocompassA. Error caused by rapid changes in courseB. Error caused by rapid changes in draftC. Errors caused by rapid changes in speedD. Errors caused by rapid changes in latitude
题目7单选题
For N-up and C-up presentation of marine radar,___ signal shall be connectedA. STWB. SOGC. COGD. HDG
题目8单选题
____the repeater compass with the master compass, pleaseA. SimilizeB. MechanizeC. SynchronizeD. Position
题目9单选题
The annual change in____ is 0.2 degreeA. magnetic variationB. marine insuranceC. maritime accidentD. mean high water spring
题目10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
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