沾染（contamination）

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  A . Gasoline B . Water C . Lubricating oil D . sulphur compound

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• Diesel engine fuel oil contamination often results in （）

  A . governor malfunctions B . fuel injection system malfunctions C . high cylinder lube oil temperatures D . low intake temperature

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• Contamination污染

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• （）are used to ensure that ships don’t discharge oil when pumping out oily water from any oil contaminated space.

  A . Boiler B . Incinerator C . Oily water separator D . Sewage treatment unit

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• Fuel oil contamination of an auxiliary diesel engine lube oil can result in（）

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• The most common contaminate of governor hydraulic fluid is （）.

  A . moisture B . dirt C . acid D . air

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• Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.

  A . under high pressure B . under low pressure C . heated to reduce viscosity D . cooled to increase viscosity

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• Diesel engine lube oil can become contaminated as a result（）

  A . the water produced during combustion B . the sulfur in the fuel C . unburned fuel oil D . all of the above

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  A . 正确 B . 错误

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• The major cause of trouble in a mechanical-hydraulic governor is contamination of the hydraulic fluid by （）

  A . dirt B . fuel oil C . governor cooling water D . fuel oil tar

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• Cargo contaminated due to failure to provide clean holds prior to loading is an example of（）.

  A . lack of due diligence B . restraint of princes C . inherent vice D . latent defect

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• Small oil spills on deck can be prevented from contaminating any waters by （）.

  A . plugging all scuppers and drains B . placing floating booms around the ship C . regularly emptying all drip pans D . thoroughly draining all bunkering hose

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• The major source of chemical contaminants in hydraulic fluid is （）.

  A . microscopic steel shavings B . abrasive waste C . anti-oxidant compounds D . oxidation by-product

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• Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and （）.

  A . fluid friction B . fluid turbulence C . component misalignment D . pressure surge

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  A . filter to remove the fuel oil B . use the settler to remove the fuel oil C . remove the fuel oil by centrifuging D . drain and then renew the lube oil supply

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  A．destroy B．decrease C．delay D．pollute

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