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1.In the Northern Hemisphere, if the center of a high pressure area is due west of you, what wind direction would you expect?______.
单选题A. Southtowest~||~Southtoeast~||~Northtowest~||~Northtoeast
2.由于海面风的不同,风海流可分为()
单选题A. 风生流和地转流~||~地转流和补偿流~||~定海流和地转流~||~定海流和风生流
3.12HOURS GALE WARNING VALID FROM 1103990700 UTC. From this phrase, the waring is expected to be valid from ______.
单选题A. 0700UTCMAR11,1999~||~0700UTCNOV03,1999~||~0700UTC,1103UTC,1999~||~NOVMAR19990700UTC
4.In the Northern Hemisphere, when the center of a high pressure system is due east of your position, you can expect winds from the ______.
单选题A. southtoeast~||~northtowest~||~northtoeast~||~southtowest
5.在摩擦层中,水平气压梯度力的方向是()。
单选题A. 垂直等压线由低压指向高压~||~垂直等压线由高压指向低压~||~斜穿等压线由低压指向高压~||~斜穿等压线由高压指向低压
6.受地球自转的影响并在控制力矩的作用下,陀螺仪主轴将作()的摆动。
单选题A. 螺旋线等幅~||~双曲线等幅~||~圆型等幅~||~椭圆等幅
7.The bow thruster generally is ineffective at ______.
单选题A. over3knotsheadway~||~atanyspeedastern~||~atanyspeedahead~||~over1knotsternway
8.In the daytime, you see a large sailing vessel on the beam. You know that she is also propelled by machinery if she shows ______.
单选题A. ablackball~||~ablackcone~||~twoblackcones~||~abasket
9.某地当日潮汐资料为:1200400cm,1900136cm,则潮高为300cm的潮时为()
单选题A. 1350~||~1457~||~1500~||~1330
10.7级风速为()m/s。
单选题A. 108-138~||~6-10~||~8-12~||~139-171
11.海面能见度为1km,那么警报为()。
单选题A. 大风警报~||~一般警报~||~浓雾警报~||~风暴警报
12.A vessel engaged in fishing shall not impede the passage of______following a traffic lane.
单选题A. (1)~||~(1)&(2)~||~(3)~||~(4)
13.引起雷达测距随机误差的原因主要有()
单选题A. 气象海况目标反射能力雷达设备能力~||~气象海况目标反射能力雷达较准~||~气象海况雷达较准雷达调整~||~雷达较准目标反射能力雷达设备能力
14.气压场:锋面两侧的()
单选题A. 气压梯度连续,等压线过锋线的折角指向低压~||~气压梯度连续,等压线过锋线的折角指向高压~||~气压梯度不连续,等压线过锋线的折角指向低压~||~气压梯度是不连续的,等压线通过锋面有指向高压的折角
15.气压梯度的大小取决于等压线的疏密程度。等压线越密集,()
单选题A. 水平气压梯度小~||~水平气压梯度大~||~垂直气压梯度小~||~垂直气压梯度大
16.锋面雾最常形成于锢囚气旋中和气旋中暖锋接近中心的部分。多在()和暖锋前产生,有时缓行冷锋后也形成。
单选题A. 冷锋前~||~冷锋后~||~暖锋后~||~锢囚锋两侧
17.由于作用在单位质量空气上的压力在水平方向上分布不均匀,所产生的力称为()
单选题A. 惯性离心力~||~地转偏向力~||~水平摩擦力~||~水平气压梯度力
18.能见度良好情况下,航线与附近有显著物标可供定位和避险的精测危险物之间的距离,至少应保持在()及以上。
单选题A. 1nmile~||~2nmile~||~3nmile~||~4nmile
19.Do not______the watch to the relieving officer until he has verbally expressed his acknowledgment of the information which has been passed by the officer handing over.
单选题A. turnover~||~handover~||~handsoff~||~takeover
20.太平洋的西风漂流()越过南太平洋时,在南美西岸有一分支北上形成秘鲁海流,其流速约为0.5kn,属于冷流。
单选题A. 自北向南~||~自南向北~||~自东向西~||~自西向东
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