For diesel engine piston cooling, lubricating oil can be supplied to the pistons by a/an （）.

A、oil spray

B、oil bath

C、oil control rings

D、drilled passage through the camshaft

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更多“For diesel engine piston cooling, lubricating oil can be supplied to the pistons by a/an （）.”相关的问题

第1题

[单选题] （）, so they are widely used on board ship nowadays.

A、Diesel engines have more advantages in comparison with gasoline engines B、Diesel engines have more advantages in comparison to gasoline engines C、Gasoline engines have more advantages in comparison with diesel engines D、Gasoline engines have more advantages in comparison to diesel engines

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第2题

[单选题] （）uses one or two high pressure pumps for all the cylinders with one more standby, while（）have a separate high-pressure pump for each cylinder.

A、A common rail engine；conventional engines B、A conventional engine；common rail engines C、A marine diesel engine；most other engines D、A two-stroke engine；four-stroke engines

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第3题

[] A diesel engine which is rated for normal operation at a crankshaft speed of 800 RPM, is commonly classed as a （）.

A、A.slow-speed diesel B、B.medium-speed diesel C、C.high-speed diesel D、D.constant-speed diesel

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第4题

[单选题] The size of the exhaust valve opening is （）

A、most critical in a four-stroke cycle diesel engine B、most critical in a two-stroke/cycle diesel engine C、most critical in a four-stroke/cycle diesel engine if it is turbocharged D、of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine

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第5题

[单选题] Proper lubrication of the main bearing is more easily obtained in a single acting four-stroke/cycle diesel engine than in a single acting two-stroke/cycle diesel engine because （）

A、bearing pressure in a four-stroke\cycle acting single diesel engine is continually reversed B、bearing pressure in a two-stroke\cycle single acting diesel engine is continually reversed C、the maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engine D、two-stoke/cycle diesel engines require more complicated lubrication piping

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第6题

[单选题] The main purpose of inspection for a running diesel engine is（）

A、testing for the mechanical load and the thermal load B、inspecting thermal and mechanical condition of the engine C、inspecting each system and exhaust temperature D、testing for compress pressure and explosion pressure

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第7题

[单选题] Which of the following is false?（）

A、preparation for stand-by should be organized by engine room B、engine trails should be agreed with bridge, and then do it C、As to engine trials of the twin diesels and two propellers, the two diesels should use “slow ahead” at the same time D、After engine trials, the handle of the engine telegraph should be put in the “stop” position

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第8题

[单选题] According to the relevant regulation, lifeboat should be powered by（）.

A、inboard diesel engine B、outboard diesel engine C、outboard gasoline engine D、inboard gasoline engine

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第9题

[单选题] （）are increasingly used as main engine on merchant vessels, because they have a high Hp/Weight ratio.

A、Slow speed diesel engines B、Medium-speed diesel engines C、Steam engines D、Gasoline engines

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第10题

[单选题] Lubricating systems for diesel engines are usually designed to initially provide lube oil to the engine （）

A、camshaft beatings B、main bearings C、piston crowns D、cylinder walls