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The oil sludge is burnt in the ______onboar
A.I’ll show you the ashes.
B.boiler
C.main engine
D.auxiliary engine
E.incinerator
参考答案
更多 “ The oil sludge is burnt in the ______onboarA.I’ll show you the ashes.B.boilerC.main engineD.auxiliary engineE.incinerator ” 相关考题
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The oil sludge is burnt in the ______onboard.I’ll show you the ashes.A.boilerB.main engineC.auxiliary engineD.incinerator
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Which lubricating oil additive is used in diesel engines to reduce the tendency(倾向)for sludge and varnish to form on the engine parts?A.Flash point improversB.Pour point improversC.InhibitorsD.Foam suppressors(抑制物)
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单选题If a diesel engine were running at 20% overload with a smoky exhaust, you should（）A
stop the engine immediately to prevent damageB
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decrease the cooling water it temperature to the water jacket
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pollutionD
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单选题If a fire ignites in the engine room as a result of a high pressure fuel oil leak, you should FIRST （）.A
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secure the generator
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单选题Which of the following conditions is most likely to occur when unburned fuel contaminates the crankcase of a diesel engine?（）A
Lube oil is diluted and its viscosity is reducedB
Sulfuric acid is formedC
Bearings become pitted ad immediately failD
Valve stems develop sludge deposits
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单选题Mist detectors used on large low-speed main propulsion diesel engines monitor and check for the presence of （）.A
fuel oil vapor at the sludge tank ventB
unburned fuel vapors in the scavenge air receiverC
lube oil vapors in the crank caseD
lube oil vapors in the engine room
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单选题When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.A
filter to remove the fuel oilB
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remove the fuel oil by centrifugingD
drain and then renew the lube oil supply
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单选题You are inspecting the lower main precision bearings on a diesel engine.You observe that about half the thin Babbitt linings are of a milky white colourThis condition is caused by （）A
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insufficient lubricating oil and overheatingC
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单选题The sludge tank installed in the diesel engine room is used to collect（） Ⅰ.sludge from the fuel oil settling tanks ad centrifuge Ⅱ.water that has been collected in the settling tankA
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单选题What is one effect of running a diesel engine at too cool a temperature? （）A
Buildup of sludge in the lubricating systemB
Excessive fuel consumptionC
Severe heat stresses on mechanical partsD
Foaming of the lubricating oil
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单选题If you were inspecting the valve springs on an auxiliary diesel engine, your best indication of impending spring failure would be （）A
a glazed surface on the springB
nicks in the protective coatingC
a build up of sludge depositsD
cracks in the surface of the spring
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单选题If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.A
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lube oil is diluted with fuel oilC
cranking speed is too lowD
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pay no attention unless there are unusual noises from the engineC
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run the engine at idle until the temperature has increased
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单选题When fuel enters the crankcase of a diesel engine, it （）A
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forms sulfuric acid in the lube oilC
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单选题Sludge formation in a diesel engine lube oil system is caused by（）A
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coagulation of unburned fuel below the piston ringsD
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单选题If you suspect a diesel engine is misfiring due to air leakage into the fuel system, you should begin looking for the leak at the （）A
fuel line connections to cylinder injection valvesB
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discharge fitting of the fuel injector pumpsD
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单选题The oil sludge is burnt in the （）on board I’ll show you the ashes.A
boilerB
main engineC
auxiliary engineD
incinerator
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单选题Which harmful consequence may be the result of lube oil sludge accumulation? （）A
Clogged oil pump suction screensB
Increased oil operating temperaturesC
Sticking piston ringsD
All of the above
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单选题A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.A
reduce the engine loadB
increase the cooling water flowC
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单选题Which lubricating oil additive is used in diesel engines to reduce the tendency for sludge and varnish to form on the engine parts?（）A
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Pour point improversC
InhibitorsD
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单选题If sludge accumulates on the underside of a diesel engine piston, it will（）A
cause blow-byB
chemically attack the piston skirtC
form an emulsion of lube oil and waterD
raise the piston temperature
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