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考试试题

[单选题]阀控型液压起货机电气操纵机构的控制对象是____换向节流阀。
[单选题]通常船舶装载后的尾吃水略大于首吃水，这是___________
[单选题]船舶进坞时，轮机部应着重检查________
[单选题]船舶稳性基本衡准应考虑下列哪些因素____①最小倾覆力矩②风压倾侧力矩③航区④船舶航速⑤船舶受风面积⑥船舶装载状态
[单选题]If a ship is to be laid up for an indefinite period, the saltwater side of the main condenser should be____.
[问答题]Operation with piston and connecting rod removed If some cylinder unit components, such as piston, connecting rod or big end bearing are damaged and can't be repaired, the following can be done to make emergency operation possible. (1) Remove the piston, connecting rod and big end bearing of that unit. (2) Cover lubricating oil bore in crank pin. (3) Fit a completely assembled cylinder head without the valve push rods . (4) Disconnect the pilot air pipe to avoid starting air to the cylinder head. (5) Set the HP fuel pump out of service by blocking pin. With one cylinder out of operation exhaust gas temperature of the remaining cylinders should not exceed normal full load temperatures. If the turbocharger(s) surges, reduce load further to avoid continuous surging. Engine operation and a piston and connecting rod removed from one or more cylinders, should be performed only in absolute emergency when no other means are available. Removal of one or two counterweight (s) may reduce vibrations due to unbalance. Please contact Stork-Wartsila Diesel in such a case. When the engine should be operated with one cylinder out of service, the balance of the engine is disturbed and severe or even dangerous vibrations may occur. The vibration conditions are in practice depending on the type of the installation.
[单选题]液压油供检验用的油样，采样时可取____L。
[单选题]保证船舶受突加外力作用而动力倾斜时不致翻沉的条件是_______
[单选题]In the common rail system, excessive pressure in the header may be caused by ______.
[单选题]船体甲板和船底的弯曲应力方向______，二者的弯曲应力值______。
[单选题]起货机油温高温报警传感器一般设在_____
[单选题]入级船舶依规范应定期进行艉轴润滑油检验，规定润滑油取样检验间隔期应不超过______。
[单选题]船内重物分布的不同将会影响________。
[单选题]In a diesel engine, blow-by is generally the result of worn _______.
[单选题]Today, the primary source of propel?ler power is the diesel engine, and the power requirement and rate of revolution very much depend on ______.
[单选题]关于舵机浮动杆控制机构储存弹簧工作情况的下列说法中正确的是____。 Ⅰ．受推力作用时弹簧缩短；Ⅱ．受推力作用时弹簧伸长；Ⅲ．受拉力作用时弹簧缩短；Ⅳ．受拉力作用时弹簧伸长。