During the diesel engine running, the water level of FW expansion tank should normally kept in the （） level of glass tube...

第1题

[单选题] Stating a large propulsion diesel engine using diesel fuel during cold weather conditions can be made easier by （）

A、increasing the quantity of starting air B、increasing the lube oil pressure C、heating the engine fuel supply D、heating the engine jacket water

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第2题

[单选题] When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）

A、During operation at low speed B、During operation at rated speed, but low power output C、During acceleration D、All of the above

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第3题

[] Starting a large low-speed propulsion diesel engine on diesel fuel during cold weather conditions, will be made easier by （）

A、A.increasing the quantity of starting air B、B.increasing the lube oil pressure C、C.heating the engine fuel supply D、D.heating the engine coolant

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第4题

[单选题] 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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第5题

[] During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.

A、A.the highest B、B.above 3/4 C、C.1/2 -3/4 D、D.the lowest

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第6题

[单选题] The rate of pressure rise during the period following fuel ignition in a diesel will result in （）

A、valve overlap B、volumetric efficiency C、turbulence of the air change D、fuel efficiency