出自:海船船员证

A fire in an electrical generator is considered to be ().
A:Class "A"
B:Class "B"
C:Class "C"
D:Class "D"
A bilge suction line,in a fishing vessel with more than 16 individuals aboard,must have a strainer with an open area not less than how many times the open area of the suction line?()
A:one
B:two
C:three
D:four
若目标船的R.M.L通过本船的MINCPA圈,则此目标为危险船,驾驶员应该()。
A:立即下舵令,进行避让
B:马上进行试操船,求得最佳避让方案,接着采取措施
C:由于ARPA有误差,试操船又是一种数学模拟所以不要相信ARPA
D:如果TCPA小于MINTCPA,则说明目标为非常危险船,应立即采取避让措施
Under normal weather and sea conditions when securing a stack of containers with non-locking fittings,lashings are required when the tier exceeds what height?().
A:Lashings are always required
B:One container
C:Two containers
D:Three containers
防爆安全探头(隔爆型)。外壳为(),气敏元件置于不锈钢腔体内,由烧结金属粒子加以保护隔离即阻焰作用,构成防爆结构。
A:金属材料
B:保温材料
C:铝合金材料
D:尼龙材料
某船装载排水量为6678t,船舶重心高度5.68m,自由液面对GM的影响值为0.12m,查得横倾角20°时形状稳性力臂KN为2.56m,则相应的复原力臂为()m。
A:0.58
B:0.47
C:0.41
D:0.36
船用液压油的性能指标中,要求凝固点比环境温度低()。
A:10~15℃
B:5℃
C:20℃
D:无要求
The main function of the core of a wire rope is to().
A:give flexibility
B:support the strands laid around it
C:allow some circulation around the strands
D:allow lubrication inside the rope
下列哪个不属于驾驶台资源()?
A:人力资源
B:物质资源
C:海洋资源
D:信息资源
在柴油机干货船上,一般装设一台压力为(),产生饱和蒸汽的辅锅炉,蒸发量为()。
A:0.6-1.0MPa;0.4-2.5b/h
B:0.5-1.0MPa;0.5-2.5b/h
C:0.5-1.0MPa;0.4-2.5b/h
D:0.6-1.0MPa;0.5-2.5b/h
若磁电式传感器之齿轮的齿数为120,则电子计数器时基信号的周期应为()。
A:2s
B:3s
C:0.5s
D:1s
A wire rope that has been overstrained will show().
A:a bulge in the wire where the strain occurred
B:a decrease in diameter where the strain occurred
C:a kink in the wire where the strain occurred
D:no visible effects of an overstrain
下列哪些公司可向主管机关申请临时审核()。 ①新成立的公司 ②发生影响安全管理体系运行的体制变更的公司 ③现有“符合证明”不实用新增船种的公司 ④距上一次审核满5年的公司
A:①②③
B:②④
C:①③④
D:①②③④
If the circumstances admit,()of small alteration of course and speed shall not be taken to avoid collision.
A:depression
B:oppression
C:succession
D:possession
使用雷达在狭水道进行导航时最好选用()。
A:对水真运动显示方式
B:对地真运动显示方式
C:船首向上相对运动显示方式
D:北向上相对运动显示方式
No jettison of cargo shall be made()as general average unless such cargo is carried in accordance with the recognized custom of the trade.
A:sure
B:fair
C:firm
D:good
正常使用时曲轴箱油的碱值()。
A:靠定期加入添加剂维持
B:靠更换滑油维持
C:靠补新油维持
D:靠水洗滑油中的酸维持
In Admiralty Sailing Directions,bands is the word used to indicate()marking.
A:horizontal
B:vertical
C:diagonal
D:vertical or diagonal
目前国内对过度磨损曲轴的修复主要采用()。
A:镀铬
B:镀铁
C:堆焊
D:修理尺寸法
用罗经和方位仪进行三方位定位时,罗经差不准确产生的误差属于()。
A:系统误差
B:偶然误差
C:粗差
D:均方误差
An auxiliary reservoir for starting auxiliary engines should be kept at ().
A:low pressure at all times
B:full pressure at all times
C:low pressure at intermittence
D:full pressure at intermittence
在桥式整流电路中,若有一只二极管极性接反,则会出现();若有一只二极管被击穿短路,则会出现()。
A:半波整流/半波整流
B:无输出电压/半波整流
C:半波整流/无输出电压
D:烧毁电路/烧毁电路
超大型船舶与一般万吨轮相比,下列哪项正确()?Ⅰ.停船性能差Ⅱ.旋回时间长Ⅲ.旋回速降小Ⅳ.浅水效应不明显Ⅴ岸壁效应显著
A:Ⅰ~Ⅴ
B:Ⅰ、Ⅱ、Ⅴ
C:Ⅰ、Ⅲ、Ⅴ
D:Ⅰ~Ⅳ
An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by ().
A:restriction in refrigerant piping
B:air and non-condensable gases in the condenser
C:water in the refrigerant
D:flooding back of liquid refrigerant from the evaporator
The clutch band of a constant tensioning mooring winch must be set up tight enough to drive the winch drum and should slip only when ().
A:excessive loads are placed on the winch
B:minimum pull is being exerted by the winch
C:automatic operation of the winch is desired
D:wire is being retrieved at the maximum rate
下列坞内检验内容与轮机部有关的是()。
A:螺旋桨和舵
B:船底板
C:龙骨板
D:防腐保护
The lowest temperature at which a liquid gives off enough vapor to ignite in the presence of an ignition source is called its ().
A:boiling point
B:flash point
C:viscosity point
D:toxic point
我国《海洋环境保护法》规定,凡进入我国管辖海域的(),有责任保护海洋环境,并有义务对污染损害海洋环境的行为进行监督和检举。 Ⅰ、个人; Ⅱ、船舶; Ⅲ、一切单位。
A:Ⅰ+Ⅱ
B:Ⅰ+Ⅲ
C:Ⅱ+Ⅲ
D:Ⅰ+Ⅱ+Ⅲ
在北半球热带气旋的危险象限是指()
A:左前象限
B:右前象限
C:左后象限
D:右后象限
某地的海图图式为:“”或“”(35),查潮信表该处当时潮汐为:1227,3.93m;1851,1.22m。则1530该障碍物()。
A:上面水深3.5m
B:高出水面3.5m
C:上面水深6.2m
D:高出水面6.2m