GPS、罗经、VHF、DF1.docVIP

GPS、罗经、VHF、DF1 磁罗经与陀螺罗经的使用 [3901]If a magnetic compass is not affected by any magnetic field other than the Earth#39;s，which statement is TRUE? A. Compass error and variation are equal. B. Compass north will be true north. C. Variation will equal deviation. D. There will be no compass error. [3902]If the compass heading and the magnetic heading are the same then ______. A. the deviation has been offset by the variation B. there is something wrong with the compass C. the compass is being influenced by nearby metals D. there is no deviation on that heading [3903]If the gyrocompass error is east，what describes the error and the correction to be made to gyrocompass headings to obtain true headings? A. The readings are too low (small numerically) and the amount of the error must be added to the compass to obtain true B. The readings are too low and the amount of the error must be subtracted from the compass to obtain true C. The readings are too high (large numerically) and the amount of the error must be added to the compass to obtain true D. The readings are too high and the amount of the error must be subtracted from the compass to obtain true [3904]If the magnetic heading is greater than the compass heading，the deviation is ______. A. east B. west C. north D. south [3905]Indications of the master gyrocompass are sent to remote repeaters by the ______. A. follow-up system B. transmitter C. phantom element D. azimuth motor [3907]Magnetic compass deviation ______. A. varies depending upon the bearing used B. is the angular difference between magnetic north and compass north C. is published on the compass rose on most nautical charts D. is the angular difference between geographic and magnetic meridians [3909]Magnetic heading differs from compass heading by ______. A. compass error B. true heading C. variat