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1.All the crewmembers shall be at the station as required by the muster list when in firefighting drill______minutes after hearing the alarm，and the duty engineer shall be able to make the fire pumps available with______minutes．
单选题A. 2/5~||~2/3~||~3/2~||~2/2
2.In beaufort wind scale，sea state with moderate waves，taking longer form，many whitecaps and some spray，is named as______．
单选题A. Strongbreeze~||~Freshbreeze~||~Stronggale~||~Gale
3.（）是由于稳定大气层结中大规模的系统性上升运动而形成的云。
单选题A. 积状云~||~卷状云~||~波状云~||~层状云
4.7级风速为（）m/s。
单选题A. 108-138~||~6-10~||~8-12~||~139-171
5.A vessel on the high seas that is not under command shall display which of the following day signals？ ______
单选题A. Twoblackballs~||~Threeblackballs~||~Tworedballs~||~Threeredballs
6.______the survivors know more of how to cope with cold water in the sinking of MV Titanic in 1912 countless lives ______.
单选题A. Have/couldhavebeensaved~||~Have/couldhavesaved~||~Had/couldhassaved~||~had/couldhavebeensaved
7.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
8.How many GMDSS operators are needed/required on board according to the provisions of the International Convention for the Safety of Life at Sea，1974？______．
单选题A. 4operators~||~3operators~||~2operators~||~1operator
9.气团离开源地后，使气团发生变性慢的情况是（）
单选题A. 所经下垫面比气团冷~||~所经下垫面与气团温度相等~||~气团移动速度慢~||~所经下垫面比气团暖
10.在海陆热力差异引起的季风中，最强盛的季风是（）
单选题A. 东亚季风~||~北美季风~||~南亚季风~||~南美季风
11.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
12.遇有船只避让等特殊情况不能准时观测时，可在（）补测完毕，并在记录表中有关栏内注明。
单选题A. 正点前30min~||~正点后1h内~||~正点后2h内~||~正点后30min内
13.______get your engine ready before six tomorrow morning．
单选题A. You’dbetter~||~Youwouldbetter~||~Youatleast~||~Youatmost
14.一些小型船舶安装的B类AIS设备，发射功率低，信息更新间隔延长至（）
单选题A. 10s~||~20s~||~30s~||~40s
15.（），所以露点也直接反映空气中水汽含量多少的物理量。
单选题A. 露点越低，水汽含量越多~||~露点越低，水汽含量越少~||~露点高低不能反映水汽含量的多少~||~露点温度越高，水汽越不容易凝结
16.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
17.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
18.地理经度和地理纬度的度量范围分别是（）
单选题A. 0～90o，0～90o~||~0～180o，0～180o~||~0～90o，0～180o~||~0～180o，0～90o
19.If your weather bulletin shows the center of a low pressure area to be 100 miles due east of your position, what winds can you expect in the Northern Hemisphere？______.
单选题A. Easttonortheast~||~Easttosoutheast~||~Northtonorthwest~||~Southtosoutheast
20.AIS目标的缺省显示为（）
单选题A. 休眠目标~||~激活目标~||~危险目标~||~丢失目标
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