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【单选题】

A mixture of 45%cetane and 55% alpha-methyl-naphthalene is found to have the same ignition delay as a sample of diesel oil √The sample can be described as having a/an()

A、cetane number of 55

B、cetane number of 45

C、octane number of 55

D、octane number of 45

更多“A mixture of 45%cetane and 55% alpha-methyl-naphthalene is found to have the same ignition delay as a sample of diesel oil √The sample can be described as having a/an()”相关的问题
第1题

AA.flammable vapor by volume in air  B、B.oxygen present to support combustion  C、C.the temperature of the flash point  D、D.the lower limit of explosibility of the mixture  

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第2题

A、The mixture is too lean to burn  B、The mixture is too rich to burn  C、The vapor is about to explode  D、Conditions are perfect for combustion  

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第3题

A、fuel spray; the burning of the fuel  B、the burned gas mixture; connecting rod  C、medium shaft;crankshaft  D、the burned gas mixture; piston rod  

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第4题

A、sudden evaporation of wax crystals in the lubricant  B、sudden evaporation of entrapped air in the lubricant  C、release of refrigerant from the oil/refrigerant mixture  D、release of dissolved lubricant from the refrigerant  

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第5题

A、The quantity of oil residues generated  B、The capacity of sludge and bilge water holding tank  C、The capacity of the oily water separator  D、All of the above  

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第7题

AA.the vapor air mixture is too rich to burn  B、B.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8题

A、Corrosion and eventual failure of the tank  B、Gumming of the tank relief valves  C、Immediate failure of components downstream of the compressed air system  D、Boiling of the water oil mixture as pressure is reduced  

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第9题

AA.fresh water  B、B.steel  C、C.paint  D、D.wood  

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