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【单选题】

A defective injector nozzle in a propulsion diesel engine can cause（）

A、engine power losses

B、smoking due to unburned fuel

C、high exhaust temperature readings

D、all of the above

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更多“A defective injector nozzle in a propulsion diesel engine can cause（）”相关的问题
第1题
[] Upon underwater（）by divers，there are no apparent（）on the bottom plates of the said vessel.

A、A.detection，defects  B、B.defection，defects  C、C.defects，defection  D、D.defects，detection  

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第2题
[单选题] The amount of fuel injection into a diesel engine cylinder by a unit injector, is controlled by（）

A、the firing pressure in the cylinder  B、a metering helix inside the pump  C、varying the physical length of the plunger stroke  D、varying the clearance between the injector cam and the injector rocker arm  

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第3题
[单选题] The high pressure in fuel injection system of the diesel engine is produced by the （）.

A、injector pump  B、fuel injector  C、governor  D、turbocharger  

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第4题
[单选题] Maintaining the close tolerances in diesel fuel pumps and injectors requires the use of（）.

A、fuel/water separators  B、day tanks  C、injector test stand  D、fuel filters  

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第5题
[单选题] If an auxiliary diesel engine temperature is higher than normal ,but the thermostat is determined not to be defective you would suspect a /an （）

A、cavitation erosion in the water jackets  B、excess corrosion inhibitor in the coolant  C、dirty jacket water cooler  D、defective turbocharger  

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第6题
[单选题] “defect”所表示的中文意思是（）。

A、委托  B、佣金  C、瑕疵  D、公告  

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第7题
[单选题] The technician is repairing a PC which appears to have a failing RAM module. After replacing the module, the extra memory still is not registering. Which of the following is MOST likely the issue?（）

A、Jumper settings are incorrect  B、The RAM module is defective  C、The memory slot is defective  D、CMOS needs to be flashed  

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第8题
[] Injectors on modern engines are cooled by a combination of the intensive bore cooling in the cylinder by a combination of the intensive bore pockets and by the fuel which is re-circulated through the injector when the follower is on the （）of the cam or when the engine is stopped.

A、A.slope  B、B.base  C、C.top  D、D.bottom  

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第9题
[单选题] Some diesel engines are supercharged with a （）

A、slam charger  B、turbocharger  C、fuel atomizer  D、fuel injector  

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