Heavy residual fuel oils are heated prior to centrifuging to （）

A、reduce fuel weight

B、increase specific gravity

C、separate fuel from lube oil

D、reduce fuel viscosity

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更多“Heavy residual fuel oils are heated prior to centrifuging to （）”相关的问题

第1题

[单选题] What color exhaust will be exhibited when a slow speed two-stroke/cycle main propulsion diesel engine, designed to operate on light and heavy fuel oil, is operated on insufficiently preheated heavy fuel oil?（）

A、White B、Black C、Blue D、Clear

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第2题

[单选题] A viscosity regulator used for an engine is usually provided in order to （） for an engine burning heavy fuel oil.

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3题

[单选题] Fuel injectors used in heavy fuel oil systems are usually provided with cooling to reduce（）.

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4题

[单选题] With respect to diesel fuel, the ease with which a cold engine will start is dependent upon the（）

A、ignition quality of the fuel B、high heating value of the fuel C、amount of carbon residue after combustion D、internal flow resistance in the injectors

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第5题

[] The safe rate of bunkering heavy fuel oil is directly related to the （）.

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6题

[单选题] The vessel is out of harbor and in “Full Ahead”We are going to run fuel oil instead of （） and open the fuel oil heater steam valve.

A、heavy oil B、lube oil C、fuel oil D、diesel

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第7题

[单选题] Heavy soot accumulations in an auxiliary boiler could be caused by（）

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

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第8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