The ____ is subject to the highest combustion pressure and thermal load.

[单选题]The highest pressure in a diesel engine cylinder normally occurs （）.A . at TDCB . before TDCC . after TDCD . during air starting

[单选题]The highest pressure in any closed diesel engine freshwater cooling system is at the （）.A . jacket water outletB . expansion tank inletC . heat exchanger inletD . cooling water pump outlet

[名词解释] 热生长 thermal growth

[单选题]thermal conductivity gauge的意思是（）。A . 离子计B . 热传导真空计C . 放电型真空计D . 麦克劳式真空计

[单选题]If the flame from combustion in the cylinder of a four-stroke engine past the piston into the space below, the accumulation of flammable mixture would be ignited, thus resulting in _____.A．the crankcase explosionB．lifting of the cylinder safety valve

[单选题]Theoretical perfect combustion in a diesel engine yields by-products of_____.A．aldehydes and carbon dioxideB．water vapor and carbon monoxideC．nitrogen and carbon monoxideD．water vapor and carbon dioxide

[单选题]A diesel engine with a combustion chamber located between the crowns of two pistons is known as a/an （）.A . double-acting engineB . opposed pistons engineC . single-acting engineD . horizontal acting engine

[单选题]Which of the combustion parameters listed is used in a diesel engine, but NOT related to the injection system?（）A . AtomizationB . MeteringC . Effective strokeD . Penetratio

[单选题]Successful combustion inside the cylinders of a diesel engine is dependent upon （）.A . fine atomizationB . high temperatureC . good mixing of fuel and airD . all of the above

[单选题]Theoretical perfect combustion in a diesel engine yields by-products of （）.A . aldehydes and carbon dioxideB . water vapor and carbon monoxideC . nitrogen and carbon monoxideD . water vapor and carbon dioxide