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【单选题】

Demulsibility of a lube oil is defined as （）.

A、the ability of oil to separate from water

B、the temperature at which oil flows rapidly

C、a measure of the water in a lube oil system

D、an emulsion of different grades of oil

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更多“Demulsibility of a lube oil is defined as （）.”相关的问题
第1题
[单选题] The viscosity of an oil is a measure of its （）.

A、weight  B、internal friction  C、demulsibility  

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第2题
[单选题] One characteristic of a lubricating oil adversely affecting the result of centrifuging is （）

A、high TBN value  B、low oil floc point  C、low oil demulsibility  D、low oil neutralization number  

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第3题
[单选题] The ability of an oil to separate cleanly from an oil and water mixture is referred to as its （）.

A、precipitation number  B、neutralization number  C、pour point  D、demulsibility  

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第4题
[单选题] The （） of an oil refers to its ability to mix with water and then release the water in a centrifuge.

A、oxidation resistance  B、carbon-forming tendency  C、demulsibility  D、acidity  

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第5题
[单选题] Which of the listed characteristics of lube oil are the most important to the engineer from an operational standpoint?（）

A、Ash content, carbon residue, and gravity  B、Viscosity, acidity, and demulsibility  C、Pour point, flash, point, and precipitation number  D、Auto-ignition point, viscosity index, and film strength  

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第6题
[单选题] If the chemical analysis of a lube oil sample taken from a diesel engine indicates an increased neutralization number, the （）.

A、acidity has increased  B、viscosity has decreased  C、demulsibility has improved  D、foaming is guaranteed to occur  

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第7题
[单选题] The bill of lading serves as a document of title enabling the goods to be transferred from the shipper to the consignee or any other party by endorsement.The（）can not be transferred to the third parties by endorsement.

A、shipped B/L  B、clean B/L  C、straight B/L  D、order B/L  

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第8题
[单选题] The bill of lading serves as a document of title enabling the goods to be transferred from the shipper to the consignee or any other party by endorsement.The（）can not be transferred to the third parties by endorsement.

A、shipped B/L  B、clean B/L  C、straight B/L  D、order B/L  

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第9题
[] The bill of lading serves as a document of title enabling the goods to be transferred from the shipper to the consignee or any other party by endorsement.The（）can not be transferred to the third parties by endorsement.

A、A.shipped B/L  B、B.clean B/L  C、C.straight B/L  D、D.order B/L  

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