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【单选题】

Heavy fuel oils generally have an upper average ash content of 0~1% by weight.Which of the following conditions could be expected if the ash content increase above this amount?()

A、Glazing of the cylinder liners

B、Increase valve wear

C、Excessive oil pumping

D、Increase fuel consumption

更多“Heavy fuel oils generally have an upper average ash content of 0~1% by weight.Which of the following conditions could be expected if the ash content increase above this amount?()”相关的问题
第2题

A、reduce fuel weight  B、increase specific gravity  C、separate fuel from lube oil  D、reduce fuel viscosity  

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第3题

A、A.type of fuel transfer pump aboard  B、B.temperature of the fuel oil being received  C、C.size of the fuel storage tanks ashore  D、D.distance from the fuel oil storage tanks ashore  

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第5题

A、water in the fuel oil  B、excessive cycling  C、high fuel oil pressure  D、improper burner maintenance  

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第6题

A、cold corrosion of the nozzles  B、fuel viscosity for better atomization  C、carbon accumulation on the nozzles  D、fuel detonation in the cylinders  

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第7题

A、regulate the fuel supply  B、maintain a constant fuel viscosity at the fuel valves  C、maintain efficient cooling  D、alter the fuel density  

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第8题

A、(1) only is correct  B、(2) only is correct  C、both (1) and (2) are correct  D、neither (1) or (2) are correct  

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第9题

A、prevent heat corrosion to internal components  B、increase fuel delivery rate and economy  C、prevent pre-ignition  D、avoid carbonization of the nozzle tips  

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