出自:海船船员证

动力装置的故障在偶然故障期内,故障率高低基本不变,故障的发生()。
A:可以预测
B:无法预测
C:通过合理磨合可以防止
D:可以理论计算
Each cylinder is closed at the top by a (), made of a special heat-resistant steel.
A:cylinder liner
B:coupling flange
C:cylinder cover
D:piston crown
按照《驾驶台规则》要求,可以在驾驶台内用餐和睡眠的有()。
A:值班人员
B:船长和大副
C:船长和引航员
D:任何人都不可以
具有燃烧危险和较小爆炸危险,或者具有较小喷射危险,或同时具有此两种危险,但无整体爆炸危险的物质和物品属于()类爆炸危险品。
A:1.3
B:1.4
C:1.5
D:1.6
Excessive lube oil consumption can result from worn or broken()
A:piston rings
B:valve guides
C:valve seals
D:all of the above
简述减小自由液面对初稳性影响的措施。
黄海暖流基本呈()。
A:冬弱夏强,从渤海海峡北部流入渤海
B:冬强夏弱,从渤海海峡南部流入渤海
C:冬强夏弱,从渤海海峡北部流入渤海
D:冬弱夏强,从渤海海峡南部流入渤海
PSC的实施对象是()。
A:所有200吨及以上船舶
B:所有750kW及以上船舶
C:抵港外轮
D:所有民用船舶
Oil may NOT be transferred unless().
A:there are two certificated tankermen on each vessel
B:the vessel is equipped with constant-tension winches
C:discharge containment equipment (i.e. drip pans) are in place
D:All of the above
Raw la quer is()corrosive nature.
A:in
B:of
C:on
D:with
Which of following data is NOT painted on the bow of a lifeboat?().
A:Number of persons allowed
B:Name of the vessel
C:Weight of the boat
D:Home port
易燃品液货舱发生事故后,下列哪项是救助本船应采取的首要措施()。
A:防止船体断裂
B:防止液体外泄
C:防止火灾爆炸
D:A、B、C都是
滑阀式换向阀的换向原理是由于滑阀相对阀体作()。
A:轴向移动
B:径向移动
C:转动
D:旋转
离心泵叶轮与轴之间发生的电化学腐蚀是()。
A:电偶腐蚀
B:浓差腐蚀
C:微观电化学腐蚀
D:海水腐蚀
Your vessel is taking on bunkers from a shore side facility, if oil begins flowing from one tank vent, which of the following actions should be taken FIRST?()
A:Open the intake valve to an adjacent tank
B:Set out drip pans and sawdust and begin to mop up the spill
C:Signal the shore control point to shutdown
D:Close the valve on the tank vent line
活塞顶部烧蚀使顶部厚度减薄,强度降低,甚至影响(),降低柴油机的工作性能。
A:压缩比
B:活塞质量
C:可靠性
D:活塞速度
Most pump manufacturers recommended that the discharge piping for centrifugal pumps be ().
A:one size larger than the pump discharge nozzle
B:the same size as the pump discharge nozzle
C:one size smaller than the pump discharge nozzle
D:installed with a short radius elbow at the pump
气缸注油润滑具有的主要优点是()。 ①可使用专用气缸油; ②润滑可靠; ③缸壁滑油量可控; ④气缸油价低。
A:①+②+③
B:②+③+④
C:①+③+④
D:①+②+④
航行试验包括的主要项目有()。 ①主机试验和操舵试验;②深水抛锚试验;③船舶操纵性试验;④航行信号设备及无线电通信设备试验。
A:①②③④对
B:①②③对
C:②③④对
D:①③④对
A device which prints out a permanent record of the plant operating conditions is known as the ().
A:analogger
B:bell logger
C:alarm logger
D:data logger
The atmosphere in the vicinity of a high pressure area is called a(n)().
A:anticyclone
B:cold front
C:occluded front
D:cyclone
载货清单是船舶的随船单证之一,如果船上所装载的货物没有在载货清单上列明,对这样的货物()。
A:海关可按走私论处
B:承运人可以任意处置
C:卸货港可以拒绝卸载
D:应视为无主货物
在各个方向交通流的汇聚区域,由于船舶可能需要穿越航路或转向另一航路,因此完全的通航分隔实际上是行不通的,因此要求在这种区域航行的船舶应()。
A:实行完全的通航分隔
B:十分谨慎
C:特殊船有优先权
D:无完全分隔
Excessively low air pressure occurring in the intercooler of a reciprocating air compressor is caused by().
A:leaky discharge valves on the LP cylinder
B:leaky discharge valves on the HP cylinder
C:insufficient intercooler cooling
D:low ambient air pressure
柴油机气缸套与气缸体下部密封圈处金属腐蚀是属于的()腐蚀。
A:电偶
B:微观
C:氧浓差
D:穴蚀
The currents are()mosoonal origin.
A:from
B:on
C:in
D:of
雷达荧光屏上多次反射回波的特点是()。
A:在同一方向上
B:距离间隔均等于真回波距离
C:越往外面,回波越弱
D:A+B+C
The diesel engine exhaust gas bypass, as fitted with some waste heat boilers, is installed to ()
A:prevent engine back pressure at heavy loads
B:increase total engine efficiency at low loads
C:prevent boiler corrosion at low engine loads
D:improve engine fuel consumption at any load
判断是否为IMO谷物规则中定义的散装谷物的条件是()。
A:形状
B:静止角
C:非粘性
D:以上都是
当照明负载采用星形连接时,必须采用()。
A:三相三线制
B:三相四线制
C:单相制
D:任何线制