Cylinder lubrication oil for low speed main propulsion diesel engines is admitted to each cylinder during （）.

A、the power stroke

B、the compression stroke

C、low load operation only

D、periods of standby

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更多“Cylinder lubrication oil for low speed main propulsion diesel engines is admitted to each cylinder during （）.”相关的问题

第1题

[] The primary purpose of oil control rings on a diesel piston is to（）

A、A.provide a reservoir for cylinder lubrication B、B.pump oil into the combustion space for cylinder cooling C、C.prevent excessive lubricating oil consumption D、D.allow hydraulic oil film formation on the cylinder

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第2题

[单选题] Diesel engine cylinder head test cocks are used to （）

A、check cylinder lubrication B、connect the pressure indicator pressure C、test cylinder heads D、connect the exhaust gas pyrometers

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第3题

[] The common method of applying oil to the cylinder walls is by means of small pump assembled in units, known as （）.

A、A.mechanical lubricator B、B.lubrication function C、C.forced feed system D、D.bearing lubrication

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第4题

[] A diesel engine is warmed up and white vapor is in the exhaust，this could indicate （）

A、A.excessive cylinder lubrication B、B.a lugging engine C、C.a leaking cylinder liner D、D.overloading of one cylinder

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第5题

[单选题] To function properly, oil control rings used on a diesel engine piston must distribute sufficient oil to all parts of the cylinder wall and must also（）.

A、prevent any lubricant from reaching B、prevent excessive lubrication from reaching the combustion space C、Provide metal-to-metal contact to seal the cylinder against blow-by D、assure a positive means of scraping carbon accumulation from the cylinder

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第6题

[] Diesel engine cylinder head test cocks are used to（）

A、A.check cylinder lubrication prior to starting engine B、B.connect exhaust gas analyzers to determine engine efficiency C、C.pressure test cylinder heads to check for leaks D、D.remove moisture accumulations from cylinder prior to starting

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第7题

[] Large crosshead type engine generally has two lubrication systems, a function performed only by cylinder oil system is（）

A、A.lubricating B、B.cooling C、C.sealing D、D.cleaning

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第8题

[单选题] Oil is supplied to the cylinder wall and （） by means of mechanical lubricators.

A、the cylinder cover B、the piston rings C、the piston crown D、the piston skirt

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第9题

[] Fresh water is used for the cooling of cylinder jackets and （） of the marine diesel engine.

A、A.cylinder covers B、B.lubricating space C、C.crosshead D、D.exhaust manifold