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出自:海船船员证
简述热油锅炉管路要点。
用国际标准后,我国将中心附近最大平均风力达14—15级的热带气旋称为()。
A:台风
B:强台风
C:热带风暴
D:强热带风暴
某船船底结构中纵桁较多而其舷侧结构中肋骨排列较密,该船为:()
A:横骨架式
B:纵骨架式
C:纵横混合骨架式
D:混合骨架式
厂修船舶,台风季节的防台工作,应()。
A:以船方为主,厂方协助
B:以厂方为主,厂船结合
C:厂方、船方一家一半
D:视具体情况而定
调距桨装置主要由()部分组成。 a.操纵系统; b.转叶机构、传动轴; c.桨叶定位和反馈机构; d.配油轴; e.调距机构、液压系统。
A:a~e
B:a+b+c+e
C:a+b+e
D:a+b+d+e
低温库保温工况的热负荷主要是:()。
A:喷物热
B:换气热
C:呼吸热
D:渗入热
船舶在海上航行时,应尽量选用()比例尽海图,以便提高定位精度。
A:小
B:大
C:最小
D:任意
《货物系固手册》中列明的中型散装容器是指()。
A:一种刚性、半刚性或挠性轻便式容器,其装载容量不大于3m
3
B:一种刚性、半刚性或挠性轻便式容器,其装载容量不大于5m
3
C:一种刚性、半刚性或挠性轻便式容器,其装载容量不大于7m
3
D:一种刚性、半刚性或挠性轻便式容器,其装载容量不大于9m
3
The boom indicator tells the operator at what angle the boom is compared to the().
A:horizontal position of the boom
B:vertical position of the boom
C:horizontal position of the load being lifted
D:vertical position of the load being lifted
二冲程直流扫气式柴油机吊缸时不检查()。
A:排气口
B:活塞组件
C:汽缸盖,汽缸套
D:活塞杆及填料函
The steam coils in a high pressure evaporator used for saltwater service should be de-scaled with ().
A:a needle gun
B:soap and water
C:a wire brush
D:a chipping hammer
If the cooling water temperature and the lube oil temperature in a diesel engine are too high, the cause can be ()
A:a dirty lube oil strainer
B:internal water leaks
C:an oil suction line restriction
D:excessive wears of the cooling water pump
用碳平衡法计算排气质量流量时,对燃料的要求是()。
A:不含氧和氢
B:不含氧和氮
C:不含氢和硫
D:不含氧和碳
当气温为0℃,在纬度45°海面上,760mm水银柱高时的大气压称为()。
A:水银柱气压
B:海平面大气压
C:标准大气压
D:纬度大气压
某轮装载后排水量Δ=19000t,KG=8.0m,KM=8.95m,船舶右倾4°。现拟在No.3左压载舱加压载水。该舱舱容中心的位置为:zP=0.8m,yP=4.18m,则应加载()t才能将船舶调平。(自由液面影响不计)
A:456.1
B:388.5
C:412.0
D:348.9
The oil () in the discharging water from oil water separator exceeds 15 PPM without alarm, because the coil was burnt out.
A:filter
B:hole
C:pollution
D:content
通过新旧环对比可以判断活塞环的()。
A:弹力大小
B:磨损程度
C:新旧程度
D:使用寿命
One of the factors which affects the circulation of ocean currents is().
A:humidity
B:varying densities of water
C:vessel traffic
D:the jet stream
The interface between the liquid seal (water) and the oil should be positioned () possible to the bowl periphery.
A:as far as
B:as soon as
C:as close as
D:as closer as
If you carry packaged hazardous cargoes on a break bulk vessel bound foreign,you must().
A:stow the hazardous cargoes on deck available for jettisoning if necessary
B:remove the hazardous cargo labels from a portable tank after the tank is emptied
C:have the shipping papers indicate the proper shipping name and the technical name of n.o.s. cargoes
D:log the receipt of hazardous cargoes in the Official Logbook
在轮机员配换活塞环时,应对新环进行()的钳工修配,以保证环的正常工作。 1修锉搭口, 2修锉内圆面, 3修锉下端面, 4修锉上端面, 5修锉上下棱边。
A:1+2+4
B:1+4+5
C:1+2+5
D:2+3+4
An all-round flashing yellow light may be exhibited by a(n)().
A:vessel not under command
B:air cushion vessel in the nondisplacement mode
C:vessel towing a submerged object
D:vessel engaged in diving operations
在RC串联正弦交流电路中,已知电源电压U=50V,UC=40V,则UR=()。
A:10V
B:30V
C:60V
D:90V
反馈控制系统受到阶跃扰动后,被控量振荡2~3次稳定下来,这说明()。
A:稳定性好,调节器调节作用强弱最佳
B:稳定性好,调节作用较强
C:稳定性较差,调节作用较强
D:稳定性较差,调节作用较弱
岸导的使用程序主要有()
A:起航前申报
B:途中联系
C:事后分析
D:D.B.C都对
Every entry required to be made in the Official Logbook shall be signed by the().
A:Mate on watch
B:Master and Chief Mate or other member of the crew
C:Master only
D:Purser,one of the Mates,and some other member of the crew
By paying out more anchor cable,you().
A:decrease the holding power of your anchor
B:decrease the swing of your vessel while at anchor
C:increase the holding power of your anchor
D:increase the possibility that your vessel will drag anchor
中国船员集体协议由()代表中国船员,中国船东协会代表中国船东共同签署。
A:海事管理机构
B:船长
C:中国海员建设工会
D:主管当局
Which instrument is used to measure the relative humidity of air?()
A:Hydrometer
B:Hygrometer
C:Spectrometer
D:Barometer
在船舶旋回过程中,对横距和旋回初径影响不大的因素是()。
A:方形系数
B:舵面积比
C:操舵时间
D:船速
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