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1、第三节 磁罗经与陀螺经的使用 0061. When an azimuth of the Sun has been taken and the deviation of the standard magnetic compass computed，the watch officer should record the results _C_ 当得到天测太阳方位时，值班驾驶员应算出标准罗经的自差并将结果记录在（）里AIn the vessels Official Logbook 航海日志 BOn the compass deviation card 磁罗经自差表CIn the compass de
2、viation log 磁罗经自差记录本 DOn a Napier diagram 奈培图表0145. Which would influence a magnetic compass _D_ 下列哪一项对磁罗经有影响（）AElectrical wiring 电线 BIron pipe 铁管 CRadio 无线电DAll of the above 全是0690. Deviation changes with a change in _ B_ 自差随（）变化而变化ALatitude 纬度 B Heading 船首向 CLongitude 经度 DSea conditions 海浪情况1203.
3、Magnetic variation changes with a change in _D_ 磁差随（）的改变而改变Athe vessels heading 船首线 Bsea conditions 海面情况Cseasons 季节 Dthe vessels position 船位1202. Lines on a chart which connect points of equal magnetic variation are called _D_799海图把所有磁差相等的点连接起来的线叫做（）AMagnetic latitudes 磁纬度 BMagnetic declinations 磁赤纬
4、CDip 磁倾角 DIsogonic lines 等磁差线1204. The agonic line on an isomagnetic chart indicates the _C_961等磁差海图上，零磁差线表示（）AMagnetic equator 磁赤道 BMagnetic longitude reference line 磁经线基准线CPoints where there is no variation 所有磁差为零的各点连线DPoints where there is no annual change in variation 磁差年变化率为零的各点连线1205. The angu
5、lar difference between the true meridian（great circle connecting the geographic poles） and the magnetic meridian（direction of the lines of magnetic flux）is called _B_ 真子午线（连接地球南北极之间的大圆）与与磁子午线（磁力线方向）之间的角度差称为（）Adeviation 自差 Bvariation 磁差 Cerror 误差 Ddifference 差别1206. The compass error of a magnetic co
6、mpass that has no deviation is _B_1004磁罗经误差中，如果没有自差，则该误差（）AZero 为零 BEqual to variation 等于磁差 CEliminated by adjusting the compass 已经经罗经校正而消除 DConstant at any geographical location 在任何地理位置都是恒定的1207. The difference between magnetic heading and compass heading is called _B_ 船首磁航向与船首罗经航向之间的夹角叫做（）AVariati
7、on 磁差 BDeviation 自差 CCompass error 罗经误差 DDrift 流压差1208. The error in a magnetic compass caused by the vessels magnetism is called _B_1021由于船舶自身的磁性引起的磁罗经误差叫做（）AVariation 磁差 BDeviation 自差 CCompass error 罗经误差 DBearing error 方位误差0688. At the magnetic equator there is no induced magnetism in the vertical
8、 soft iron because _ C_ 在地磁赤道上，没有由垂向软铁产生的感应磁性，这是因为（）AThe lines of force cross the equator on a 0-180alignment 在地磁赤道上磁力线与地磁赤道成 0-180交角B The quadrantal error is 0在地磁赤道上象限误差为 0CThere is no vertical component of the Earths magnetic field 在地磁赤道上地磁力分量为 0DThe intercardinal headings have less than 1 error 在
9、地磁赤道上船艏向在隅点方位上的误差小于 10701. The points on the earths surface where the magnetic dip is 90 are _ D_1139地球表面上，磁倾角为 90的地区是（）AAlong the magnetic equator 地磁赤道上 BConnected by the isoclinal line 由等磁差线连接 CThe isopors （isophers ）等温线DThe magnetic poles 地磁极1212. The line which connects the points of zero magnet
10、ic dip is _B_1068地球表面上各磁倾角为零的点的连线是（）AAn agonic line 零磁差线 BThe magnetic equator 磁赤道CA magnetic meridian 磁子午线 DAll of the above 以上全是1213. The magnetic compass magnets are acted on by the horizontal component of the Earths total magnetic forceThis magnetic force is GREATEST at the _D_1077磁罗经指针的指向是由地球磁力
11、线的横向分力引起的，该横向分力在（）处最大Anorth magnetic pole 磁极 Bsouth magnetic pole 磁南极Cmagnetic prime vertical meridian 大圆磁子午线 Dmagnetic equator 磁赤道1220. The total magnetic effects which cause deviation of a vessels compass can be broken down into a series of components which are referred to as _B_ 对船上的磁罗经产生影响的地磁力可分
12、为各种分量，这些分量可叫做（）Adivisional parts 分割的部分 Bcoefficients 系数 Cfractional parts 分数的部分 Dequations 等式1224. What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism _B_1336磁罗经校正磁铁中，哪一类校正磁铁既可校正固定磁性又可校正感应磁性（）AQuadrantal spheres 象限软铁球 BHeeling magnets 倾斜校正磁铁
13、 CAthwartships magnets 横向校正磁铁 DFore-and-aft magnets 纵向校正磁铁1227. What is used to correct for both induced and permanent magnetism，and consequently must be readjusted with radical changes in latitude _D_1406下列哪一种校正磁铁既可校正固定磁性，又可校正感应磁性，而且又必须随纬度的急剧变化而重新校正（）AFlinders bar 软铁棒 BSoft iron spheres 软铁球 CFore -
14、and-aft permanent magnets in their trays 托盘中的纵向固定磁铁DHeeling magnet 倾斜校正磁铁1230. When crossing the magnetic equator the _B_1457当通过磁赤道时， （）AFlinders bar should be inverted 应倒转软铁棒的磁极B Heeling magnet should be inverted 应倒转倾斜校正磁铁的磁极CThe quadrantal spheres should be rotated 180 应将象限软铁球旋转 180DFlinders bar s
15、hould be moved to the opposite side of the binnacle 应把软铁棒移到罗经柜的另一面1232. Which compensates for errors introduced when the vessel heels over _C_1560下列哪一种校正磁铁用来校正船舶的倾斜自差（）AThe soft iron spheres on the arms of the binnacle 罗经柜两臂上的象限软铁球B Magnets placed in trays inside the binnacle 罗经柜内的托盘上的磁铁CA single vertical magnet beneath the compass 罗经下方的一根垂直磁铁DThe Flinders bar 软铁棒1245. A single vertical magnet placed underneath the compass in the binnacle is used to compensate for _B_194置于罗经柜内罗经下方的垂直磁铁用来校正（）AThe horizontal component of the perm
