关于“可变气缸切换（Cylinder cut Out，CCO）”功能，正确的说法是（）。①当主机的负荷和转速都比较低时，可将主机的工作气缸分为两组，按照时间顺序轮流工作；②从主机起动直至稳定运行期间，气缸切换功能将被屏蔽；③若“取消限制”按钮被按下，或者主机转速偏差超出预定范围，则所有气缸将同时工作；④此功能的目的是保证主机在低转速和低负荷情况下的运转能够更加平稳；⑤此功能可以实现主机最低稳定转速限制A、①②③④B、②③⑤C、①③④⑤D、①②④⑤
关于“可变气缸切换（Cylinder cut Out，CCO）”功能，正确的说法是（）。①当主机的负荷和转速都比较低时，可将主机的工作气缸分为两组，按照时间顺序轮流工作；②从主机起动直至稳定运行期间，气缸切换功能将被屏蔽；③若“取消限制”按钮被按下，或者主机转速偏差超出预定范围，则所有气缸将同时工作；④此功能的目的是保证主机在低转速和低负荷情况下的运转能够更加平稳；⑤此功能可以实现主机最低稳定转速限制
- A、①②③④
- B、②③⑤
- C、①③④⑤
- D、①②④⑤
相关考题：
My wife is out of work now, so we have to ________ our living expenses. A.cut downB.cut outC.cut offD.cut short
在AUTOC20主机遥控系统中，设置“可变气缸切换（CCO）”的主要目的是（）。.A.保证主机在低转速和低负荷情况下，能够将主机功率减半B.保证主机在低转速和低负荷情况下，能够将主机功率减去1/3C.保证主机在低转速和低负荷情况下的运转能够更加平稳D.保证主机在低转速和低负荷情况下运转时能够减少功率
关于“可变气缸切换（CylindercutOut，CCO）”功能，正确的说法是（）。①当主机的负荷和转速都比较低时，可将主机的工作气缸分为两组，按照时间顺序轮流工作；②从主机起动直至稳定运行期间，气缸切换功能将被屏蔽；③若“取消限制”按钮被按下，或者主机转速偏差超出预定范围，则所有气缸将同时工作；④此功能的目的是保证主机在低转速和低负荷情况下的运转能够更加平稳；⑤此功能可以实现主机最低稳定转速限制A.①②③④B.②③⑤C.①③④⑤D.①②④⑤
In order to()handling and shipping expenses as()as possible, we suggest that you ship the large order in containers. A、cut down⋯muchB、cut out⋯muchC、subtract⋯lowD、decrease⋯high
He was in hospital for six months. He felt as if he was____ from the outside world.A. cut off B. cut out C. cut up D. cut through
单选题The opening or closing of the cylinder starting valve is controlled by （）.Athe starting air distributorBthe cut-off valve on the air mainCthe main starting valveDthe air bottle control valve
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单选题The bore of each cylinder is formed in a liner which can be （） when worn out.AweldedBreplacedCdrilled againDbored
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单选题In order to inspect both piston and cylinder wall thoroughly, the cylinder cover should be taken off and the piston should be （）.Acraned outBrolled outClifted outDturned out
单选题The term diesel engine scavenging means（）Adelivering more air into the cylinder than it would normally receive during an ordinary charging processBforcing the products of combustion out of the cylinder with the fresh air chargeCcollecting the air charge at the cleanerDcombustion and expansion of hot gas
单选题The rim of the piston may contain cut-out portions to accommodate （） when they open.Athe gasesBthe airCthe valvesDthe injectors
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单选题关于“可变气缸切换（Cylinder cut Out，CCO）”功能，正确的说法是（）。①当主机的负荷和转速都比较低时，可将主机的工作气缸分为两组，按照时间顺序轮流工作；②从主机起动直至稳定运行期间，气缸切换功能将被屏蔽；③若“取消限制”按钮被按下，或者主机转速偏差超出预定范围，则所有气缸将同时工作；④此功能的目的是保证主机在低转速和低负荷情况下的运转能够更加平稳；⑤此功能可以实现主机最低稳定转速限制A①②③④B②③⑤C①③④⑤D①②④⑤
单选题For one or two types of engine,the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through （）.Athe cylinder coverBthe bottom of bed-plateCthe sumpDthe crankcase door
单选题For one or two types of engine, the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through the （）.Acylinder casingBcylinder boreCcrankcase doorDaperture in the cylinder block
单选题The cross-head shoes are white metal lined, grooves being cut horizontally on the face of the white metal to ensure （）.Aan adequate supply of lube oilBan adequate supply of fuel oilCan adequate supply of turbine oilDan adequate supply of cylinder oil
单选题The pressure range between the system cut in and cut out pressures in a refrigeration unit is known as（）Aopposing operational dragBpressure distributionCdifferentialDsystem purge