船舶动力装置题库

[单选题]压缩空气准备工作（）。Ⅰ.主、副空气瓶充气至规定压力；Ⅱ.泄放气瓶内残水、油；Ⅲ.打开空压机出口阀；Ⅳ.打开气瓶出口阀和主停气阀；Ⅴ.打开主启动阀A . Ⅰ+Ⅱ+ⅣB . Ⅰ+Ⅱ+ⅢC . Ⅰ+Ⅱ+ⅤD . Ⅰ+Ⅱ+Ⅲ+Ⅳ

[单选题]螺旋桨桨叶变形较大时可采用（）法进行校正。A . 冷态校正B . 热态校正C . 机械校正D . 加热-机械校正

[单选题]在测量螺旋桨螺距时，不需测量的参数是（）。A . 测量截面的桨叶厚度B . 螺距规水平杆的转角C . 顶杆的升程D . 测量截面的半径和桨的半径

[单选题]舵杆弯曲变形时直线度误差＞2mm/m，允许采用（）修复。A . 冷校直B . 热校直C . 加热-机械校直D . 机械校直

[问答题] 船舶停航，完车后应做哪些工作？

[填空题] 摇动兆欧表后，各接线柱之间不能（），以免损坏。

[单选题]Before being used the fuel service tank should be drained of （）.A . soda solutionB . mechanical impuritiesC . ballastD . water and residual

[单选题]螺旋桨桨叶A区内的深度＜t为/40（t为叶厚，mm）或4mm的缺陷可以采用（）其中较大的缺陷。A . 修磨B . 焊补C . 粘接D . 金属扣合工艺

[单选题]（） are formed by abrasive particles entering the bearing and scoring the shaft.A . GroovesB . RecessesC . RidgesD . Ni

[单选题]流线型舵的缺点是（）。Ⅰ.结构复杂；Ⅱ.舵效低；Ⅲ.造价高；Ⅳ.阻力大；Ⅴ.产生的水动力小。A . Ⅰ＋ⅢB . Ⅰ＋Ⅳ＋ⅤC . Ⅲ＋Ⅳ＋ⅤD . Ⅰ＋Ⅲ＋Ⅳ

[单选题]After the order “（）” is given, the air system is shut down, the turning gear put in.A . Finished with EngineB . Stop the EngineC . Stand-by EngineD . Slow-down Engine

[单选题]船舶舵系是实现船舶（）等操纵的航向控制装置。Ⅰ.转向；Ⅱ.前进；Ⅲ.后退；Ⅳ.掉头；Ⅴ.直航。A . Ⅰ＋ⅡB . Ⅰ＋Ⅳ＋ⅤC . Ⅲ＋Ⅳ＋ⅤD . Ⅰ＋Ⅱ＋Ⅲ

[单选题]After passing through the turbine the exhaust gas is conducted out into the（）.A . intercoolerB . compressorC . cylinderD . open air

[单选题]螺旋桨静平衡试验后，桨叶上不平衡质量超过允许值时，通常应对（）进行修整。A .质量较小的桨叶B .质量较大的桨叶C .每个桨叶D .质量较小和较大的桨叶

[单选题]A separate piston cooling system is used to limit any contamination （） piston cooling glands（） the piston cooling system only.A . between；toB . either；orC . from；toD . neither；nor

[单选题]为了检验螺旋桨的螺距，测量时应测出（）。Ⅰ.螺旋桨的半径；Ⅱ.桨叶厚度；Ⅲ.各半径截面局部螺距；Ⅳ.各桨叶平均螺距；Ⅴ.螺旋桨总螺距。A . Ⅰ＋ⅢB . Ⅰ＋Ⅱ＋Ⅳ＋ⅤC . Ⅲ＋Ⅳ＋ⅤD . Ⅰ＋Ⅱ＋Ⅲ＋Ⅳ

[单选题]当铁梨木艉轴承的轴承间隙和铁梨木板条厚度均不合标准时，应采用（）修理。A .换新铜套B .换轴承C .换下瓦D .换艉轴

[单选题]During repair,lubrication lines and orifices must be （）.A . taken awayB . engagedC . connectedD . sealed off

[单选题]If the flame from combustion in the cylinder of a four-stroke engine past the piston into the space below, the accumulation of flammable mixture would be ignited, thus resulting in （）.A . the crankcase explosionB . lifting of the cylinder safety valv

[单选题]At the top of the A-frames there is a strong cast iron frame called （）.A . cylinder linerB . cylinder coverC . the gear boxD . the scavenging box

[单选题]In addition to lubricating, cylinder oil assists in forming a gas seal and contains （） which clean the cylinder liner.A . additivesB . waterC . greaseD . acid solutio

[单选题]Cylinders of marine diesel engines are normally cooled by （）.A . sea waterB . fine mineral oilC . sanitary waterD . fresh water

[单选题]转舵时声音异常并存在严重的撞击现象，其原因可能是（）。A . 舵承与舵杆、舵轴、舵销的配合间隙过大B . 舵承与舵轴或舵销的间隙过小C . 舵系安装不正D . 舵杆变形

[单选题]大型船舶传动轴系的校中安装方法有（）。Ⅰ.轴系按合理校中安装；Ⅱ.轴系按直线校中安装A . 仅Ⅰ对B . 仅Ⅱ对C . Ⅰ+ⅡD . Ⅰ，Ⅱ

[单选题]Each cylinder has one starting valve which is usually opened by air pressure and closed by （）A . nuts and boltsB . new jointsC . spring forceD . sealing ring

[单选题]In four strokes engine, the cycle of events is completed in four strokes of （）.A . the cylinderB . the crankshaftC . the pistonD . the cross-head

[单选题]In a commonly used fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to （） and heated.A . a service tankB . a settling tankC . an expansion tankD . a double bottom tank

[单选题]螺旋桨的缺陷主要有（）。Ⅰ.腐蚀；Ⅱ.桨脱落；Ⅲ.振动；Ⅳ.变形；Ⅴ.裂纹和折断。A . Ⅱ＋ⅢB . Ⅰ＋Ⅱ＋Ⅳ＋ⅤC . Ⅰ＋Ⅳ＋ⅤD . Ⅰ＋Ⅱ＋Ⅲ＋Ⅳ

[单选题]艉轴铜套损坏的主要形式有（）。Ⅰ.腐蚀；Ⅱ.裂纹；Ⅲ.过度磨损；Ⅳ.套合松动；Ⅴ.接缝不良。A . Ⅱ＋ⅢB . Ⅰ＋Ⅱ＋ⅣC . Ⅱ+Ⅲ＋Ⅳ＋ⅤD . Ⅰ＋Ⅲ＋Ⅳ

[单选题]水润滑艉轴承首端设置填料函式密封装置是为了（）。A . 防止艉轴承过分冷却B . 防止海水流入机舱C . 使艉轴承润滑均匀D . 减少艉轴承磨损