搜题

【单选题】

The cetane number of a diesel fuel oil indicates its（）

A、Viscosity

B、acid content

C、heating value

D、ignition quality

查看正确答案

更多“The cetane number of a diesel fuel oil indicates its（）”相关的问题

第1题

[单选题] Which of the following statements is true concerning the cetane number of diesel fuel?（）

A、The cetane number affects the amount of injection lag B、The cetane number is an indication of the fuels viscosity C、Ignition lag is reduced with fuels having a high cetane number D、The cetane number is of little significance in the combustion process

点击查看答案

第2题

[单选题] Which of the following statements is true concerning the cetane number rating of diesel fuel? （）

A、The cetane number is obtained by comparing the fuel with cetane a colorless liquid hydrocarbon B、The higher the cetane number, the shorter the ignition lag C、The highest cetane number of fuel is 100 D、All of the above

点击查看答案

第3题

[单选题] Which of the following represents the significance the fuel oil cetane number?（）

A、The cetane number has no affect on injection lag B、The cetane number is an indication of the fuel’s viscosity C、Ignition lag is reduced with fuels having a high cetane number D、The cetane number is of little significance in the combustion

点击查看答案

第4题

[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

点击查看答案

第5题

[单选题] The higher the cetane number, （） the ignition quality of the fuel.

A、the worse B、the better C、the smaller D、the greater

点击查看答案

第6题

[] The ignition quality of a diesel fuel is indicated by the （）

A、A.cetane number B、B.volatility point C、C.viscosity index D、D.octane number

点击查看答案

第7题

[] In diesel engineering practice, the term used to express the ignition quality of a particular fuel is（）

A、A.cetane number B、B.octane number C、C.ignition index number D、D.volatility point

点击查看答案

第8题

[单选题] Two important considerations for the proper lubrication of a diesel engine include the delivery of the oil in sufficient amount and the （）.

A、cetane number B、pour point C、viscosity temperature D、quality of the oil

点击查看答案

第9题

[单选题] For optimum results, centrifugal purification of heavy fuel oil should be accomplished with the fuel at the lowest practicable（）

A、throughput B、additive percent C、cetane number D、TBN number

点击查看答案

第10题

[单选题] The ignition quality of diesel fuel is indicated by its（）

A、octane number B、cetane number C、viscosity in Saybolt seconds D、air fuel ratio

点击查看答案

账号：登录

TOP

请使用微信扫码支付

订单号：
遇到问题请联系在线客服