【导读】
必典考网发布船舶动力装置题库2022模拟考试练习题297,更多船舶动力装置题库的模拟考试请访问必典考网海船船员考试题库频道。
1. [单选题]可靠性对船舶动力装置具有特别重要的意义,可靠性不足会()。
A. 导致海损和海洋污染(marine pollution)
B. 降低营运效益
C. 降低续航力
D. A+B
2. [单选题]航行中对发电柴油机曲轴的断裂可以应急焊接修理,并进行封缸以维持柴油机运转。封缸的正确操作应该是()。Ⅰ.停止燃烧;Ⅱ.降速运行;Ⅲ.吊出活塞连杆;Ⅳ.封死气缸启动阀;Ⅴ.关闭进排气阀(inspiration exhaust valve)。
A. Ⅰ+Ⅱ
B. Ⅰ+Ⅱ+Ⅲ+Ⅳ+Ⅴ
C. Ⅰ+Ⅲ+Ⅳ+Ⅴ
D. Ⅰ+Ⅲ+Ⅴ
3. [单选题]下列检验中,不属于活塞运动部件平台检验的项目是()。
A. 连杆大小端轴承孔的平行度的检查
B. 活塞环槽(piston ring groove)平面与活塞中心线垂直度的检查
C. 活塞与活塞杆的同轴度的检查
D. 活塞杆与十字头销的垂直度的检查
4. [单选题]为了满足工作要求,活塞销的材料一般选用()并经渗碳、淬火和低温回火处理。Ⅰ.低碳钢(15钢);Ⅱ.中碳钢(medium carbon steel)(35钢);Ⅲ.合金调质钢;Ⅳ.滚动轴承钢(GCr15);Ⅴ.合金渗碳钢(20Cr)。
A. A.Ⅰ+Ⅱ+Ⅴ
B. B.Ⅰ+Ⅴ
C. C.Ⅱ+Ⅴ
D. D.Ⅰ+Ⅲ+Ⅴ
5. [单选题]单轴系的特点是()。Ⅰ.直接传动;Ⅱ.结构简单可靠;Ⅲ.便于操纵;Ⅳ.便于维护管理;Ⅴ.建造费用低。
A. Ⅱ+Ⅲ
B. Ⅰ+Ⅱ
C. Ⅰ+Ⅱ+Ⅲ+Ⅳ+Ⅴ
D. Ⅰ+Ⅱ+Ⅲ+Ⅳ
6. [单选题]检查油润滑艉轴承密封装置防蚀衬套的密封性采用()方法。
A. 油压试验
B. 水压试验
C. 磨合试验
D. 运转试验
7. [单选题]Compressed air is supplied by air compression to ().
A. the air receivers
B. the starting valves
C. the cylinder covers
D. the distributor
8. [单选题]The common method of applying oil to the cylinder walls is by means of small pump assembled in units, known as ().
A. mechanical lubricator
B. lubrication function
C. forced feed system
D. bearing lubricatio
9. [单选题]The cylinder cover is not provided with ().
A. fuel valve
B. lubricator
C. indicator valve
D. the starting valve
10. [单选题]There is () in any water cooling system for a diesel engine allowing for expansion and water make-up in the system as well as air vent and chemicals addition.
A. a setting tank
B. a service tank
C. a head tank
D. an expansion joint