Diesel engine mufflers accomplish noise reduction by ()
- Areducing exhaust gas velocity
- Bincreasing the frequency of gas vibration
- Cthe use of long head pipes
- Dthe use of zinc electrode
Diesel engine mufflers accomplish noise reduction by ()
1、Modern marine diesel engines equipped
Modern marine diesel engines equipped with mechanical fuel injection operate on a combustion phase within the cycle which is()Aentirely constant...
2、A diesel engine crankcase ventilation
A diesel engine crankcase ventilation system ()Aprevents spark generationBremoves combustible gasesCdetermines the level of combustible gasesDprovides inert gas generation in crankcase
3、Diesel engine exhaust gas temperatures
Diesel engine exhaust gas temperatures can be used to determine individual cylinder ().AperformanceBhorsepower outputCfuel consumptionDscavenge effect
4、Diesel engines driving alternators ope
Diesel engines driving alternators operating in parallel must maintain set frequency regardless of load changesThe governor characteristic used to accomplish this is known as ()AactuationBsensitivityCcompensationDthrust shaft
5、() the engines, the diesel engine is()
() the engines, the diesel engine is() used engine on board.ABetween;more commonlyBAmong;the most commonlyCBetween;not more commonlyDAmong;not the most commonly
6、Lubricating systems for diesel engines
Lubricating systems for diesel engines are usually designed to initially provide lube oil to the engine ()Acamshaft beatingsBmain bearingsCpiston crownsDcylinder wall