In a diesel engine, exhaust valves open before the intake ports are uncovered to () Ⅰ.reduce pumping losses Ⅱ.reduce back pressure
相似题目
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Excessive piston ring wear in a diesel engine will cause()
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A turbocharged, four-stroke/cycle diesel engine has a larger valve overlap than a naturally aspirated four-stroke/cycle diesel engine, in order to in crease the ().
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Engine coolant accumulating in the diesel engine lubricating oil can result from a ()
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A supercharged diesel engine when compared to a similar naturally aspirated diesel engine, will develop an increase in ()
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Defective timing gear in a diesel engine may lead to ().
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Worn main bearings in a diesel engine can result in ()
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The intake valves in a diesel engine are reseated by ().
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Burning fuel with a high sulfur content in a diesel engine will ()
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Fuel is ignited in a diesel engine cylinder by ()
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Improperly fitted piston rings in a diesel engine can cause()
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Poor combustion in a diesel engine can be caused by ().
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A diesel engine is supercharged in order to()
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Low compression pressure in a diesel engine is caused by()
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If a crankcase explosion occurs in a diesel engine, you should stop the engine and()
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A defective injector nozzle in a propulsion diesel engine can cause()
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Low compression in a diesel engine can be caused by ()
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Proper lubrication of the main bearings is more easily obtained in a single acting, four-stroke/cycle diesel engine than in a tow-stroke/cycle diesel engine because().
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A diesel engine burns () a gasoline engine of the same capacity in the same period of time.
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Defective governor in a diesel engine may lead to ().
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A restricted air intake to a diesel engine may result in the engine ().
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Defective air cooler in a diesel engine will lead to ().
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The highest pressure in a diesel engine cylinder normally occurs ().
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In a diesel engine, blow-by()
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Low compression in a diesel engine could be caused by()
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