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【单选题】

The cylinder oil is pumped into the cylinder (via non-return valves) when the piston rings pass the lubricating orifices during （）

A、the upward stroke

B、the downward stroke

C、the power stroke

D、the suction stroke

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更多“The cylinder oil is pumped into the cylinder (via non-return valves) when the piston rings pass the lubricating orifices during （）”相关的问题
第1题
[单选题] （） is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.

A、The fuel oil  B、The lube oil  C、The sea water  D、The fresh water  

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第2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3题
[单选题] There is a support ring between the cylinder block and collar of the cylinder liner, thus carrying both the liner and the cylinder coverIt also passes to the cooling bores and to the cover（）

A、cooling water  B、cooling oil  C、refrigerant  D、lubricate oil  

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第4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5题
[] In some diesel engine designs,（）the injection of cylinder oil is timed to impinge when the piston and only impinge on（）

A、A.is coming upward；cylinder ring belt  B、B.is going downward；piston ring belt  C、C.is coming upward；piston ring belt  D、D.is going downward；cylinder ring belt  

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第6题
[单选题] It is very necessary that each cylinder （） before the charged air is compressed.

A、is scavenged  B、is atomized with fuel oil  C、be scavenged  D、be atomized with fuel oil  

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第7题
[] The （） of the gravity disc is too big It causes oil to flow through the water outletWe changed the disc and no oil is found in the water outlet.

A、A.gravity  B、B.diameter  C、C.circumference  D、D.cylinder  

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第8题
[单选题] Fuel oil discharged to the diesel engine cylinder is atomized at the （）

A、turbocharger  B、injection nozzle tip  C、carburetor  D、fuel oil pump  

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第9题
[单选题] The main purpose of starting the diesel engine on air briefly is（）

A、to inspect if the cylinder has the water leakage  B、to expel out the residual water/gas/oil from the cylinder  C、to check if fuel supply is normal  D、A and B  

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