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轮机长/大管轮英语面试题(一)-绿芒船员学苑

轮机长/大管轮英语面试题(一)

1: What is the plant to ready for manoeuving and departure port?离港备车的步骤*start the second generator and after all checks, take it on load*The third generator should be kept o...

1: What is the plant to ready for manoeuving and departure port?
离港备车的步骤
*start the second generator and after all checks, take it on load

*The third generator should be kept on standby condition

*Essential steps to be noted: Turning engine indicator cocks parameters abnormal noise

*Check system FO service and settling tanks diesel oil service tank air system LO system T/C CW system checking the fuel regulating gear & starting system

* slow turning the engine

*this must be carried out to prevent damage caused by fluid in one of the cylinders and to check the reversing mechanism

*Before beginning the slow turning obtain permission from the bridge

2, what items to be analysis on L.O?机油化验项目

*Specific gravity ,viscosity, flash point, TAN(total acid number),SAN(strong acid number) ,alkalinity, TBN( total base number) ,water content, Conradson, carbon, ash insoluble。

3 ,what cause of exhaust temperature rises in all cylinders? 整体排温高的原因

* Increased scavenge air temperature owing to inadequate air cooler function

*Fouled air and gas passages

*Inadequate fuel oil cleaning or alerted combustion characteristics of fuel

*wrong position of camshaft

4, what causes of high turbocharger speed?透平高转速的原因

*Fouled air filter(early stage of unloading the compressor)

*Fire (early stage) in the exhaust check immediately.

5, what causes of cylinder knocking?敲缸的原因

*Fuel timing too far advanced

*fuel injector valve needle sticking at open position

*Excessive carbon built up on the crown

*Broken exhaust valve

*Mechanical damage in the3 cylinder

6,what action to be taken of crankcase mist detector alarm (never cut out mist detector potentially dangerous)?油雾探测器报警采取的措施

*Inform bridge and C/E

*Stay away from crankcases

*slowdown and stop

*start turning gear immediately for at least 30 minutes to cool down

*Through investigation of mist detector crankcase abnormality and moving parts required

7, what caused of scavenge fire and action taken?扫气箱着火原因和措施

*Inform bridge and C/E

*Do not stand near the relief valves

*slow down engine ensure that the auxiliary blowers are off

*In case the fire persists stop the engine gradually to prevent risk of piston seizure

*Fire should be go off when all deposits burnt out

*keep turning the engine with cooling on to prevent seizure of moving parts

8, what action taken when crankcase explosion? (Most of the cases engine will suddenly stop upon explosion)曲轴箱爆炸的措施

*Inform bridge and chief engineer

*evacuate the E/R

*Every safe effort to be made to turn engine by turning gear or slow turning for 30 minutes to prevent seizure of moving parts

*Thorough investigation required into the cause of the explosion before re starting 

9, What will you do when boiler water level was low during normal steaming condition?锅炉水位低采取的措施

*Fist start the standby feed water pump

*Second check and wash the local water level gauge

*Third check any leakage on steam pipes or safety valves

10 ,Turbo charger surging causes and preventive measures?
透平喘振原因和预防措施
* T/C surging can be divided into three main categories

* malfunction in the fuel system

*Rapid variations in the engine load

* Fuel system fuel injection system fuel line components fuel timing

*exhaust system valve exhaust passage through turbocharger and gas boiler

*scavenge air system

*Miscellaneous rapid changes in load and RPM governor

*Immediate action temporarily counteracted by blowing off

Reduce engine load by taking the T/C away from the surging line

*Preventive measures regular maintenance of items mentioned above prevent load fluctuations during ballast voyage and bad weather

*Periodical check of M/E bedplate a strength member

* Cross girder under the bearing housing

*Bolt holes

* Holding down bolts of slackening

*Chocks (fretting cracks and slackness)


  • 发表于 2023-11-29 15:17
  • 阅读 ( 564 )

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