网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)
单选题
When fuel oil is accidentally missed with lube oil which of the following processes can be used to separate them?() Ⅰ.filtering Ⅱ.settling
A

Ⅰ only

B

Ⅱ only

C

either Ⅰ or Ⅱ

D

neither Ⅰ or Ⅱ


参考答案

参考解析
解析: 暂无解析
更多 “单选题When fuel oil is accidentally missed with lube oil which of the following processes can be used to separate them?() Ⅰ.filtering Ⅱ.settlingA Ⅰ onlyB Ⅱ onlyC either Ⅰ or ⅡD neither Ⅰ or Ⅱ” 相关考题
考题 199 During extremely cold weather, while starting an engine,it turns too slowly and fails to start.This problem is most likely theresult of() A.high fuel oil viscosityB.low fuel oil temperatureC.high lube oil viscosityD.energized alow plugs

考题 If a used lube oil analysis indicates excessive chromate content, this meansA.air filtration is inadequateB.engine coolant is leaking into the lube oilC.fuel oil is leaking into the lube oilD.the piston rings are excessive worn

考题 When an auxiliary boiler is panting and emitting(发出) black smoke, you should______.A.increase the fuel oil temperatureB.decrease the fuel oil temperatureC.decrease the fuel oil supply pressureD.increase the air supply

考题 单选题A decrease in the flash point of diesel engine lube oil indicates the lube oil has become ().A contaminated with sludgeB contaminated with carbonC diluted with fuel oilD diluted with water

考题 单选题When lighting off an auxiliary boiler, which of the problems listed could cause the burners to sputter?()A cold fuel oilB low fuel oil pressureC low atomizing steam pressureD water in the fuel oil

考题 单选题A lube oil filter can be used to remove most contaminants from lube oilA contaminant which will remain in the lube oil after filtering is ().A acidB fuel oilC sedimentD water

考题 单选题Which of the listed conditions can cause a diesel engine to use too much lube oil?()A Dirty lube oil filterB Too much piston ring wearC High lube oil viscosityD Low lube oil temperature

考题 单选题Fuel oil contamination of an auxiliary diesel engine lube oil can result in()A an increased flash pointB higher lube oil pressuresC an increased viscosityD lower lube oil pressures

考题 单选题When an auxiliary boiler is panting and emitting black smoke, you should ().A increase the fuel oil temperatureB decrease the fuel oil temperatureC decrease the fuel oil supply pressureD increase the air supply

考题 单选题During extremely cold weather, while starting an engine, it turns too slowly and fails to startThis problem is most likely the result of ()A high fuel oil viscosityB low fuel oil temperatureC high lube oil viscosityD energized glow plugs

考题 单选题When fuel oil has seriously contaminated a diesel engine lubricating oil, you should ().A filter to remove the fuel oilB use the settler to remove the fuel oilC remove the fuel oil by centrifugingD drain and then renew the lube oil supply

考题 单选题Diesel engine fuel oil contamination often results in ()A governor malfunctionsB fuel injection system malfunctionsC high cylinder lube oil temperaturesD low intake temperatures

考题 单选题Which of the following conditions can cause excessive lube oil consumption in a diesel engine?()A Low lube oil temperatureB Dirty lube oil strainerC Low lube oil pressureD High lube oil temperature

考题 单选题Which of the listed conditions can be used to determine if lube oil has been diluted by fuel? ()A Viscosity is decreasedB Octane number is alteredC Pump speed is decreasedD Blower’s speed is decreased

考题 单选题Which of the followings will affect the spray of fuel oil?()A coke depositsB cylinder water temperatureC asphalt in fuel oilD lub oil

考题 单选题Diesel engine lube oil diluted with fuel oil is indicated by()A decreased viscosityB decreased pour pointC increased flash pointD increased viscosity

考题 单选题Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?()A Water discharging from the water outlet of the lube oil purifierB Fuel oil discharging from the water outlet of the lube oil purifierC Lube oil discharging from the water outlet of the lube oil purifierD A change in the lube oil viscosity

考题 单选题Which of the following conditions could be a cause of excessive fuel dilution of diesel engine lube oil?()A Leaking fuel injectorsB Lower than normal compressionC Delayed fuel injectionD All of the above are correct

考题 单选题Which of the following problems will occur if a disk-type centrifugal lube oil purifier is not properly primed prior to admitting oil flow to the bowl?()A Contamination of the lube oil by emulsification will resultB The lube oil will not be subjected to the proper centrifugal forceC The lube oil will overheat and flashD Oil will discharge from the heavy phase discharge port and be wasted

考题 单选题Demulsibility of a lube oil is defined as ().A the ability of oil to separate from waterB the temperature at which oil flows rapidlyC a measure of the water in a lube oil systemD an emulsion of different grades of oil

考题 单选题When fuel enters the crankcase of a diesel engine, it ()A dilutes the lube oil and reduces its viscosityB forms sulfuric acid in the lube oilC causes pitting and failure of the bearingsD causes sludge deposits on valve stems

考题 单选题Sludge formation in a diesel engine lube oil system is caused by()A carbonization of oils from the combustion chambersB emulsions of lube oil and waterC coagulation of unburned fuel below the piston ringsD all of the above

考题 单选题If a used lube oil analysis indicates excessive fuel dilution, the lube oil should be ()A changedB centrifugedC filteredD settled

考题 单选题Lubricating oil viscosity in an operating diesel engine can be reduced by()A increasing cooling water flowB increasing lube oil flowC dilution by fuel oilD adding SAE 70 oil

考题 单选题Which of the following problems may occur when using fuel oil with a high sulphur content?()A Injection lagB Lube oil dilutionC Pre-ignitionD Corrosion

考题 单选题When the incinerator is stopped, which of the following is wrong?()A After stopping supplying sludge oil, the value and pipe should be flushed by flushed by diesel oil and the incinerator continue burning for 10 minutesB Close auxiliary burner firstly and then close main burnerC After stopping fuel, restoring the position of main fuel supply valveD Stop blower as soon as stopping supplying fuel oil

考题 单选题Which of the following faults would allow lube oil to enter the cooling system of a diesel engine?()A Excessive valve train lubricationB Leaking standby oil cooler coreC Excessive lube oil pressureD Excessive lube oil in the system