A dirty diesel engine oil filter element can best be detected by ______.A.visual inspection of the elementsB.the pressure drop across the filterC.high lube oil sump temperatureD.decrease in oil viscosity from the filter
A dirty diesel engine oil filter element can best be detected by ______.
A.visual inspection of the elements
B.the pressure drop across the filter
C.high lube oil sump temperature
D.decrease in oil viscosity from the filter
相关考题：
The pressure differential across a diesel engine lube oil system duplex filter should be checked to ________.A.determine the need for filter cleaningB.measure any change in oil viscosityC.prevent damage to the filterD.determine the need for batch filtration
For a continuous operation diesel engine, a duplex filter unit would be the best arrangement becauseA.changing filter elements would not interrupt engine operationB.filtering occurs twice in each pass of oil through the systemC.clogging will not occurD.dropping pressure is half of that through a single filter unit
Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger? .A.Reduce engine speed to idle before removing the filterB.Soak the dirty filter in kerosene onlyC.Blow out the air inlet with compressed airD.Cover the air inlet after removing the filter
单选题Care and cleanliness are required when installing diesel fuel filters （）.Ato prevent the fuel system from becoming air-houndBto prevent the fuel system becoming clogged with dirty particlesCboth of the aboveDto prevent the lubricating oil from leaking out of the filter element
单选题Stating a large propulsion diesel engine using diesel fuel during cold weather conditions can be made easier by （）Aincreasing the quantity of starting airBincreasing the lube oil pressureCheating the engine fuel supplyDheating the engine jacket water
单选题Worn main bearings in a diesel engine can result in （）Adecreased compression pressureBincreased lube oil pressureClower lube oil temperatureDexcessive leakage past the piston rings
单选题A dirty diesel engine oil filter element can best be detected by （）.Avisual inspection of the elementsBthe pressure drop across the filterChigh lube oil sump temperatureDdecrease in oil viscosity from the filter
单选题The oxidation by-products forming in diesel engine lube oil can cause （）ApittingBsludgeChard varnishDall of the above
单选题Leaking oil seals on a diesel engine turbocharger can cause（）Athe engine to run after the fuel has been securedBthe engine to over-speedCa fireDall of the above
单选题If the cooling water temperature and the lube oil temperature in a diesel engine are too high, the cause can be （）Aa dirty lube oil strainerBinternal water leaksCan oil suction line restrictionDexcessive wears of the cooling water pump
单选题A dirty fuel oil filter element can be detected by （）AVisual inspection of the elementBthe pressure drop cross the filterChigh fuel oil tank temperatureDincrease flow rate from the filter
单选题Which of the listed conditions can cause a diesel engine to use too much lube oil?（）ADirty lube oil filterBToo much piston ring wearCHigh lube oil viscosityDLow lube oil temperature
单选题Excessive lubricating oil consumption in a running diesel engine can be caused by （）Aclogged lube oil pipingBexcessive valve-guide clearanceChigh lube oil viscosityDlow lube oil temperature
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Fuel oil contamination of an auxiliary diesel engine lube oil can result in（）Aan increased flash pointBhigher lube oil pressuresCan increased viscosityDlower lube oil pressures
单选题Which of the following conditions can cause excessive lube oil consumption in a diesel engine?（）ALow lube oil temperatureBDirty lube oil strainerCLow lube oil pressureDHigh lube oil temperature
单选题For a continuous operation diesel engine, a duplex filter unit would be the best arrangement because （）.Achanging filter elements would not interrupt engine operationBfiltering occurs twice in each pass of oil through the systemCclogging will not occurDdropping pressure is half of that through a single filter unit
单选题A dirty fuel oil filter is can be detected by （） Ⅰ.fuel oil analysis Ⅱ.observing the pressure drop across the filterAⅠonlyBⅡonlyCeitherⅠorⅡDneitherⅠnor
单选题Dirt in the fuel oil system of a diesel engine can cause （）.Aclogged filtersBpoor combustionCoverloading of the dieselDshock of fuel lines
单选题Broken intake valve springs on one cylinder of a diesel engine can cause the engine to （）AOver speedBfire improperlyClose oil pressureDoverheatrapidly
单选题Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger?（）AReduce engine speed to idle before removing the filterBSoak the dirty filter in kerosene onlyCBlow out the air inlet with compressed airDCover the air inlet after removing the filter
单选题The pressure differential across a diesel engine lube oil system duplex filter should be checked to （）Adetermine the need for filter cleaningBmeasure any change in oil viscosityCprevent damage to the filterDdetermine the need for batch filtration
单选题Engine coolant accumulating in the diesel engine lubricating oil can result from a （）Alow oil pressureBhigh coolant pressureCleaking fuel injectorDcracked cylinder head or liner
单选题Lubricating oil viscosity in an operating diesel engine can be reduced by（）Aincreasing cooling water flowBincreasing lube oil flowCdilution by fuel oilDadding SAE 70 oil
单选题Clogged diesel engine fuel oil filters can cause（）Aloss of powerBmisfiringClow fuel oil pressureDAll of the above
单选题What monitoring device best indicates the load being carried by a diesel engine?（）ALube oil pressure gaugeBJacket water temperature gaugeCTachometerDExhaust pyrometer
单选题Misfiring in a diesel engine at light loads can be caused by（）Ahigh lube oil temperatureBlow lube oil temperatureCexcessive cylinder coolingDhigh air injection pressure