单选题The oil quantity for bearing lubrication should be applied in such an amount as to be sufficient to carry away the （） caused by the friction at the bearings.AacidsBadditivesCheatDgear
单选题
The oil quantity for bearing lubrication should be applied in such an amount as to be sufficient to carry away the （） caused by the friction at the bearings.
A
acids
B
additives
C
heat
D
gear
参考解析
解析：
暂无解析
相关考题：
The most crucial time for any bearing with regards to lubrication isA.during low loadsB.after proper oil viscosity is reachedC.during startingD.after cleaning filters
Crankcase explosions in propulsion diesel engines result from ____.A.the splashing of lubrication oil by the crankshaftB.the dilution of crankcase oil with particles of combustionC.broken fuel lines spraying oil on the crankcaseD.the ignition of unburned fuel and air in the crankcase
The common method of applying oil to the cylinder walls is by means of small pump assembled in units, known asA.mechanical lubricatorB.lubrication functionC.forced feed systemD.bearing lubrication
Lubrication for the main reduction gears used with diesel engines is usually supplied byA.oil from the main engine sumpB.an independent lube oil systemC.the stern bearing head tankD.the stem bearing sump tank
Which of the following is NOT on the list items to be recorded in Oil Record Book Part I (machinery space operation)?A.accidental discharge of oilB.disposal of oil residuesC.quantity of water produced by F.W.GD.discharge of dirty ballast or cleaning water from fuel oil tanks
单选题A dirty lube oil strainer can result in（）AcrankcaseBlow lube oil temperatureCexcessive oil consumptionDlow bearing oil pressure
单选题The film of oil between the rings and the liner is not only essential for the lubrication but also plays an important part in achieving （）.Aan oil sealBremoving heatCa gas sealDcooling the piston
单选题In a bypass type lubrication system for a diesel engine, the dirty oil line to the centrifuge should be taken from the （）.Alube oil pump suction lineBlube oil pump discharge lineCbottom of the lube oil sumpDoutlet from the lube oil header
单选题The most crucial time for any bearing with regards to lubrication is （）Aduring low loadsBafter proper oil viscosity is reachedCduring startingDafter cleaning filters
单选题Crude oil washing of cargo tanks has the following advantages except for （）Areducing the erosion of the cargo tanksBincreasing the total quantity of oil to carryCreducing the quantity of water contained in oilDreducing cargo discharged time
单选题A: Please tell me the specifications and quantity. B: （）APump diesel oil firstB300 tons of 180 cst fuel oilCThe figure is all rightDOK, I’ll sign it
单选题You have calibrated your RDF. When compiling the calibration table，the correction to be applied to any future RDF bearings is listed against the（）.Atrue bearing of the transmitterBrelative bearing of the transmitterCheading of the vesselDtime of reception
单选题During inspection of oil and oily mixtures from machinery spaces, which of the following factors should be taken into account by the PSCO? （）AThe quantity of oil residues generatedBThe capacity of sludge and bilge water holding tankCThe capacity of the oily water separatorDAll of the above
单选题A vessel has been equipped with an oil lubricated stern bearing and is undergoing a routine dry-dock.Which of the following inspection should be made when the tail-shaft has been drawn?（）AThe overall condition of the bearing surface should be examinedBThe shaft liner should be inspected for cracks and tested to insure a tight fitCThe stern tube should be tested for cracks with dye penetrantDall of above
单选题The pistons are cooled by （） oil from the forced lubrication.Abeing givenBgivingCsupplyingDbeing supplied
单选题Crankcase explosions in propulsion diesel result from（）Athe splashing of lubrication oil by the crankshaftBthe dilution of crankcase oil with particles of combustionCbroken fuel lines spraying oil on the crankcaseDthe ignition of unburned fuel and air in the crankcase
单选题The lubricating system for the cylinder walls is different from the bearings in that the oil for former one is supplied in （） while that for latter one is （）.Asufficient quantity； measuredBmeasured quantity；sufficientCexcessive quantity；sufficientDthe less quantity the better；the more the better
单选题When the bearing becomes dry from lack of oil, the motor shaft may heat to （）an extent （） it welds itself to the bearing.Aeither；orBneither；norCsuch；thatDso；that
单选题In the shafting management （） should be paid more attention. Ⅰ.f the while metal tailshaft bearing is dripping oil Ⅱ.f some area become blue during the running Ⅲ.he deformation of crankshaftAⅠBⅡCⅢDⅡ+Ⅲ
单选题The tailshaft sealing arrangement found a little lube oil leaky and caused a lot of seawater into the bearing, the step should be taken as a makeshift is（）Adropping lube oil for lubrication, reducing the pollution to the seaBsetting a temporary gravity oil tank and enhanced the position properlyClubricating with the used lube oilDlubricating with the fresh water and navigation in a lower speed
单选题Heat for igniting the fuel oil in the cylinder of a diesel engine is generated by the （）Aelectronic ignition systemBcompression of air by the pistonCfriction in the fuel injectorDfuel oil bearing system
单选题To guarantee that a reduction gear bearing is receiving proper oil supply, you should check the （）Alube oil temperature at the cooler outletBlube oil strainer magnets bearingClube oil temperatureDlube oil pressure to the bearing
单选题When separating fuel oil in oil separator, the separating quantity is（） of the real quantity.A100%B80%C1/2D1/3
单选题High lube oil temperatures developing in a diesel engine can result from（）Ahigh oil pressureBexcessive bearing end playCplugged oil control ringsDengine overload
单选题Lubricating oil used in a diesel engine serves to（）Areduce the wear of bearing surfacesBcool the bearing surfacesCassist in sealing bearing surfacesDall of the above
单选题Just after stopping the engine while the oil is still circulating.Check that uniform oil jets appear from all the oil outlet grooves in the crosshead bearing lower shell and the guide shoes.The oil flow from （） must be compared from unit; there should be a similarity in the flow patterns.Athe piston cooling oil return pipesBthe main and crankpin bearingsCthrust and intermediate bearingsDstern tube and thrust bearings
单选题Two important considerations for the proper lubrication of a diesel engine include the delivery of the oil in sufficient amount and the （）.Acetane numberBpour pointCviscosity temperatureDquality of the oil