[单选题]舵系校中采用()进行校中。A . 拉钢丝线法B . 光学仪器法C . 测量法D . 塞尺法
[单选题]() of an engine crankshaft can be detected by measuring deflections of crank webs for each unit of the engine.A . MisalignmentB . LengthC . StrengthD . Stresse
[问答题] 简述船机装配过程中应遵循的技术规则。
[单选题]A charge of fresh air is drawn into the engine cylinder and then () by the moving piston() very high pressure.A . pressed;toB . pressurized;withC . pushed;inD . compressed;to
[单选题]按舵叶截面形状分为()舵。Ⅰ.平板形;Ⅱ.叶形;Ⅲ.机翼形;Ⅳ.流线型;Ⅴ.直线形。A . Ⅰ+ⅡB . Ⅰ+ⅣC . Ⅲ+ⅣD . Ⅰ+Ⅲ
[问答题] 怎样对螺旋桨各区域缺陷进行修理?
[单选题]滑油系统的备车准备工作应检查()。Ⅰ.循环油柜油位;Ⅱ.轴承油位;Ⅲ.储油柜油位;Ⅳ.分油机A . Ⅰ+ⅡB . Ⅰ+ⅢC . Ⅰ+ⅣD . Ⅰ+Ⅱ+Ⅲ
[单选题]用拉线法检查舵系中心线的状态时所使用的钢丝直径一般()。A . 不小于0.8mmB . 不大于0.8mmC . 不小于1.0mmD . 不大于1.0mm
[单选题]As a heat engine,() energy is the source of power by which the diesel engine can be operated.A . electricB . heatC . mechanicalD . exhaust
[单选题]As for a diesel engine, lack of combustion air may be due to ().A . fouling turbineB . fuel pump faultsC . lubrication failureD . excessive cooling
[单选题]() the supercharge pressure is, () power an engine develops.A . The higher;the moreB . Higher;moreC . Higher;littleD . The higher;the le
[单选题]检查舵系中心线状态的方法采用()。A . 平轴法B . 平轴计算法C . 拉线法D . A或B或C
[问答题] 中、小型柴油机气缸套磨损,需测量哪几个部位,怎样测量?
[单选题]() neutralizes the acid conditions and() cleanses the rings and grooves.A . The detergency;the alkalinityB . The alkalinity;the detergencyC . The inhabitant;the waterD . The additives;the distilled water
[单选题]舵叶轴承孔与舵杆工作轴颈的同轴度偏差不得大于()倍的舵承安装间隙。A . 0.7B . 1.0C . 1.25D . 1.5
[单选题]A number of cylinder liners are enclosed in one cast iron casing to form a ().A . cylinder coverB . cylinder blockC . cylinder frameD . bed-plate
[单选题]A distance piece, known as a () may be interposed between the rod and the bearing housing.A . bearing shellB . bearing linerC . compression plateD . lead wire
[单选题]测量螺旋桨桨叶上的螺距时,依螺距规水平杆的转角α和量杆的升程ΔL可计算出()。A . 局部螺距B . 截面螺距C . 桨叶螺距D . 总平均螺距
[问答题] 造成曲轴红套滑移原因有哪些,怎样检查?
[单选题]() is not properly set thus causing either advanced or retarded firing.A . A pistonB . A fuel injection pumpC . A feed water pumpD . A lube oil pum
[单选题]() is used for washing and drinking.A . The ballast systemB . The salt water systemC . The bilge systemD . The domestic system
[问答题] 怎样对连杆螺栓进行检测?
[单选题]Among the rings of a piston the () one is subjected to the greatest load and temperature.A . bottomB . middleC . topD . none of the above
[单选题]() is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve.A . An air receiverB . An operating valveC . An automatic valveD . An air distributor
[问答题] 造成增压器涡轮壳体腐蚀的原因,怎样防止和修理。
[单选题]增压二冲程柴油机当增压器损坏无法使用而使用辅助或应急鼓风机时,其运转功率与转速的降低程度主要应考虑的因素是()。Ⅰ.排气温度;Ⅱ.柴油机振动;Ⅲ.排气颜色;Ⅳ.柴油机运转状态A . Ⅰ+Ⅱ+ⅢB . Ⅰ+Ⅲ+ⅣC . Ⅱ+Ⅲ+ⅣD . Ⅰ+Ⅱ+Ⅳ
[单选题]() is made of a boss with separated blades mounted into it.A . A variable pitch propellerB . A variable pitch nutC . A fixed pitch parallelD . A fixed pitch screw
[问答题] 怎样正确拆装增压器?
[单选题]新造船舶的舵系中心线与轴系理论中心线通常是这样确定的:()。A . 先确定轴系理论中心线,后确定舵系中心线B . 先确定舵系中心线,后确定轴系理论中心线C . 在船体建造时确定轴系理论中心线和舵系中心线D . 无一定要求
[单选题]平衡舵是舵的旋转轴线位于()。A . 舵叶上半部分的中间B . 舵叶下半部分的中间C . 舵叶的中间D . 舵叶的一侧