出自:海船船员证

在船体钢板上或气缸套外表面安装锌块又称为()法。
A:阳极保护
B:阴极保护
C:牺牲阳极保护
D:电化学保护
集装箱运输中,TEU表示()ft标准换算箱。
A:20
B:25
C:30
D:40
A semisubmersible which flops between forward and aft angles of trim is likely to have().
A:KML less than KGL
B:an off-center LCG
C:LCG greater than LCB
D:KML greater than KMT
Every state, whether coastal or not,()to sail ships under its flag on the high seas.
A:has no right
B:has partial right
C:has the right
D:has not any right
船舶锅炉检验中的"废气经济器"是指()。 Ⅰ、直接给用热设备提供饱和蒸汽的强制循环热交换器 Ⅱ、可以直接达到蒸汽范围,但要用燃油锅炉作为蒸汽储存器的强制循环热交换器 Ⅲ、只能对水进行预热的强制循环热交换器
A:仅仅是Ⅰ
B:仅仅是Ⅱ
C:仅仅是Ⅲ
D:Ⅰ+Ⅲ
在液压系统中要使同一液压泵以不同压力供几个不同用途,应使用()。
A:溢流阀
B:减压阀
C:平衡阀
D:顺序阀
某船以18kn航行1000nmile,需要燃油100t。现仅存燃油80t,但至目的港尚有800nmile的航程。船舶计划预留燃油20t作为备用,为了使船舶续航至目的港,试求该船应采用的航速()。
A:15kn
B:15.6kn
C:16kn
D:16.5kn
按照有关规定,客船需要持有的证书和文件是()。
A:客船安全证书
B:客船构造安全证书
C:客船设备安全证书
D:客船无线电安全证书
长时间系浮或风浪较大,且船舶的回旋水域足够时,多采用那种系浮方法?()
A:用缆绳系单浮
B:用缆绳系双浮
C:用锚链系单浮
D:用锚链系双浮
某航次船舶装载袋装货物,则装货前船方应做的准备工作不包括对()的准备。
A:装卸设备
B:货物处所
C:照明设施
D:以上都是
船员发现火情可采用的报警方法是()。 Ⅰ、喊叫; Ⅱ、利用就近的手揿式火灾报警器; Ⅲ、电话通知驾驶台。
A:Ⅰ+Ⅱ
B:Ⅰ+Ⅲ
C:Ⅱ+Ⅲ
D:Ⅰ+Ⅱ+Ⅲ
一级石油的闪点在()以下。
A:28oC
B:50oC
C:60oC
D:70oC
If fuel oil were being discharged from the waster outlet of a fuel oil disk type centrifuge, operated as separator, you should()
A:remove the discharge ring
B:re-prime the purifier
C:the centrifuge to its proper speed
D:install an additional discharge ring
Besides heat, fuel, and oxygen, which of the following is necessary for a fire to exist?()
A:Chain reaction
B:Thermal action
C:Chemical occlusion
D:Pyrotechnical reaction
The function of a centrifugal pump double volute casing is to ().
A:reduce radial thrust to the impeller
B:double the liquid velocity through the pump when compared to a single volute
C:reduce hydraulic end thrust
D:provide the effect of multi-staging
When a wind force causes a floating ship to heel to a static angle,the().
A:centers of buoyancy and gravity are in the same vertical line
B:righting moment equals the wind-heeling moment
C:downflooding point is below water
D:deck-edge immersion occurs
ISM规则
The bosun has thrown the liferaft into the water before abandoning the vessel. The operating cord().
A:serves as a sea painter
B:detaches from the liferaft automatically
C:is used to rig the boarding ladder
D:is cut immediately as it is of no further use
On a lifeboat equipped with Rottmer-type releasing gear,turning the releasing lever releases().
A:the painter
B:the after boat fall only if the boat is waterborne
C:both falls at the same time only if the boat is waterborne
D:both falls at the same time even if the boat has not reached the water
喷射泵中将速度能转换为压力能的元件主要是()。
A:喷嘴
B:吸入室
C:混合室
D:扩压室
蒸气压缩式制冷装置的下列主要元件:Ⅰ.压缩机、Ⅱ.膨胀阀、Ⅲ.冷凝器、Ⅳ.蒸发器,冷剂的正确流过程序是()。
A:Ⅰ、Ⅱ、Ⅲ、Ⅳ
B:Ⅳ、Ⅲ、Ⅱ、Ⅰ
C:Ⅰ、Ⅲ、Ⅱ、Ⅳ
D:Ⅳ、Ⅱ、Ⅲ、Ⅰ
系、离作业前,应做下列哪些准备工作()。 Ⅰ.船长应将操作要点及要求向有关人员介绍; Ⅱ.试验对讲机,保持联络畅通; Ⅲ.检查前后缆绳及泊位前后的情况; Ⅳ.试验锚机和绞缆机。
A:Ⅰ~Ⅳ
B:Ⅰ~Ⅲ
C:Ⅱ~Ⅳ
D:Ⅰ、Ⅱ、Ⅳ
A metal object on the pier resembling a tree stump and made to receive mooring lines is a().
A:bight
B:bollard
C:chock
D:camel
()the compression ratio, () the proportion of the heat energy of the combustion turned into useful work at the crankshaft, other things being equal.
A:The high;the large
B:The higher;the larger
C:The lower;the larger
D:The low ;the large
Which of the following problems may occur when using fuel oil with a high sulphur content?()
A:Injection lag
B:Lube oil dilution
C:Pre-ignition
D:Corrosion
两艘机动船交叉相遇,下列说法不正确的是:() Ⅰ、有他船在本船右舷的船舶应为让路船 Ⅱ、有他船在本船右舷的船舶应为直航船 Ⅲ、有他船在本船左舷的船舶即为让路船 Ⅳ、有他船在本船左舷的船舶即为直航船
A:Ⅰ、Ⅲ
B:Ⅱ、Ⅳ
C:Ⅱ、Ⅲ
D:Ⅰ、Ⅳ
下列有关动稳性力臂表述错误的是()。
A:动稳性力臂为静稳性力臂曲线下的面积
B:动稳性力臂在数值上等于静稳性力臂
C:动稳性力臂为静稳性力矩做的功与排水量之比
D:以上全错
劳动争议当事人对仲裁裁决不服时,可自收到裁决书之日起()向人民法院诉讼。
A:10日内
B:15日内
C:30日内
D:60日内
船舶初稳心是指()。
A:船舶水线面的面积中心
B:船舶排水体积的中心
C:船舶横剖面的面积中心
D:以上均错
靠泊操纵中,在通常情况下船首抵达泊位中点时船舶最大余速应控制在(),拖单锚制动是适当的。
A:3节以下
B:2节以下
C:3节以上
D:2节以上