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自考10012轮机英语(二)模拟试题2

试题数量：50道
免费次数：登录后，试做1次
练习次数：231次
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试卷简介

该试卷共包含50道试题，试题类型如下:

单选题

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1、[单选题]______ for attachment to the propeller shaft also accommodates the turning gear and is integrally forged the crankshaft．
- A.The coupling flange
- B.The camshaft
- C.The cross-head pin
- D.The cylinder jackets
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2、[单选题]______ should be taken out，cleaned，and lifting checked every four to six months．
- A.pistons
- B.Fuel injection valves
- C.Crankshaft
- D.Cylinder covers
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3、[单选题]_____usually helps to induce air movement to assist combustion．
C
- A.ylinder cover
- B.Main bearing
- C.The exhaust valve
- D.The piston movement
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4、[单选题]______ may have two emergency source of power，thus requiring two emergency switchboards．
- A.Large passenger vessels
- B.General cargo ships
- C.Container ships
- D.oil tankers
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5、[单选题]______ supplies pilot air to control the cylinder air start valves．
- A.An air compressor
- B.An indicator cock
- C.An air distributor
- D.A safety valve
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6、[单选题]______ less equipment in contact with sea water，the corrosion problems are much reduced in a central cooling system．
- A.Because
- B.with
- C.without
- D.Though
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7、[单选题]______ clearances in the main or crank pin bearings will sometimes be indicated by loss of pressure in the lubricating system before any bearing knock is hear
- A.Too larger
- B.Too smaller
- C.Excess
- D.Excessive
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8、[单选题]A ______ on the delivery side of the pump closes to stop fuel Oil returning from the injector．
- A.return valve
- B.non-return valve
- C.safety unit
- D.stop valve
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9、[单选题]A __ensures a constant pressure at the fuel main．
- A.transfer pump
- B.control air bottle
- C.pressure regulating valve
- D.non returning valve
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10、[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／to
- B.Pressurized／with
- C.pushed／in
- D.compressed／to
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11、[单选题]A common trouble with the fuel pump plunger or fuel valve spindle is ______。
- A.water leakage
- B.steam leakage
- C.Oil leakage
- D.air leakage
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12、[单选题]A common trouble with the fuel pump plungers or fuel valve spindle is ______。
- A.broken down
- B.stuck
- C.Oil 1eakage
- D.Carbonized
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13、[单选题]A diesel engine is similar to a gasoline engine except that the former has to ______?
- A.cross-head
- B.cylinder
- C.connecting rod
- D.spark plug
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14、[单选题]A diesel engine’s crankcase oil level is found to be too high． You should suspect that ______
- A.the engine was over filled
- B.there might be a fuel leak
- C.there might be a water leak
- D.all of the above
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