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【单项选择题】

Operating a diesel engine under light loads and at low temperatures for an exhaust for an extended period can result in()

A、A.formation of carbon on the intake and exhaust ports

B、B.high water jacket temperatures

C、C.overheated pistons and cylinders

D、D.an increase in lube oil viscosity due to fuel dilution

更多“Operating a diesel engine under light loads and at low temperatures for an exhaust for an extended period can result in()”相关的问题
第1题

<em>Aem>、Sp<em>aem>rk plug  B、He<em>aem>t of compression  C、C<em>aem>rburetor  D、Glow ping  

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第2题

<em>Aem>、<em>Aem>.Sp<em>aem>rk plug  B、B.He<em>aem>t of compression  C、C.C<em>aem>rburetor  D、D.Glow plug  

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第3题

<em>Aem>、method of supplying <em>aem>ir  B、cooling system  C、method of igniting fuel  D、v<em>aem>lve <em>oper<em>aem>tingem> mech<em>aem>nism  

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第4题

<em>Aem>、<em>Aem>.Exh<em>aem>ust temper<em>aem>ture  B、B.Lube oil level  C、C.Lube oil pressure  D、D.W<em>aem>ter level in the exp<em>aem>nsion t<em>aem>nk  

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第6题

<em>Aem>、<em>aem> cr<em>aem>cked liner  B、burning lube oil  C、<em>aem>n overlo<em>aem>ded engine  D、insufficient combustion <em>aem>ir  

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第7题

<em>Aem>、Light blue h<em>aem>ze  B、Light brown h<em>aem>ze  C、Light gr<em>aem>y h<em>aem>ze  D、Perfectly cle<em>aem>r  

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第10题

<em>Aem>、<em>Aem>.<em>aem> cr<em>aem>cked liner  B、B.burning lube oil  C、C.<em>aem>n overlo<em>aem>ded engine  D、D.insufficient combustion <em>aem>ir  

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