A . fine atomization
B . high temperature
C . good mixing of fuel and air
D . all of the above
[主观题]they are inside 选择_______________theirspacesuitsorthewallsoftheirspacecraft,iftheyareinside[A]but[B]because[C]so[D]for
[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]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]Fuel is delivered into the combustion space by ().A . a cooling systemB . a lubricating systemC . an electric systemD . an injection system
[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 valv
[单选题]In the combustion chamber, the part whose surface is exposed to the highest temperature is the ().A . cylinder linerB . cylinder coverC . pistonD . exhaust valve
[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]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]In the experiment, the burning inside the bottle can___.A. equalize the air pressure inside and outsideB. make a seal in the neck of the bottleC. finish up the oxygen inside the bottleD. produce more oxygen inside the bottle