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【单选题】

A fuel-air mixture below the lower explosive limit is too().

A、rich to burn

B、lean to burn

C、cool to burn

D、dense to burn

更多“A fuel-air mixture below the lower explosive limit is too().”相关的问题
第1题

A、rich to burn  B、lean to burn  C、cool to burn  D、dense to burn  

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第3题

A、the heat compressed fuel/air mixture in the cylinder  B、the fuel igniter  C、the fuel injector  D、the fuel pump  

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第4题

A、prevent engine overheating  B、have proper air/gasoline fuel mixture ratio  C、be liquid- and vapor-tight  D、supply sufficient air to the intake manifold  

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第5题

AA.prevent engine overheating  BB.have proper air/gasoline fuel mixture ratio  C、C.be liquid- and vapor-tight  D、D.supply sufficient air to the intake manifold  

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第6题

AA.the burning of the fuel; medium shaft  BB.fuel spray; fresh air  C、C.fuelfuel spray  D、D.the burning of the fuel; the burned gas mixture  

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第7题

Aa shortened ignition delay period  Ba lean fuel/air mixture  C、excess fuel in the combustion chamber  D、rapid vaporization of injected fuel droplets  

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第8题

AA.the vapor air mixture is too rich to burn  BB.an explosion may occur if a source of ignition is present  C、C.the vapor air mixture is too lean to bum the upper explosive  D、D.limit has been exceeded  

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第9题

AA.a shortened ignition delay period  BB.a lean fuel/air mixture  C、C.excess fuel in the combustion chamber  D、D.rapid vaporization of injected fuel droplets  

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