单选题A large change in ambient temperature, or using an oil of a viscosity different from the one recommended by the manufacturer in a mechanical hydraulic governor, will result in the need to adjust the （）.Apilot valve openingBcompensating needle valveCcompensating spring tensionDaccumulator spring tension
单选题
A large change in ambient temperature, or using an oil of a viscosity different from the one recommended by the manufacturer in a mechanical hydraulic governor, will result in the need to adjust the （）.
A
pilot valve opening
B
compensating needle valve
C
compensating spring tension
D
accumulator spring tension
参考解析
解析：
暂无解析
相关考题：
When using a fuel with a higher than normal sulfur content in an auxiliary four stroke diesel engine, you mayA.maintain higher than normal jacket water temperatureB.change the lube oil more frequently than normalC.maintain a higher air-box temperature than normalD.maintain a higher air-box pressure than normal
A large change in ambient temperature, or using an oil of a viscosity different than the one recommended by the manufacturer in a mechanical hydraulic governor, will result in the need to adjust theA.pilot valve openingB.compensating needle valveC.compensating spring tensionD.accumulator spring tension
Oil oxidation as a result of excessively high lube oil temperature, is harmful to a diesel engine BecauseA.oil foaming will always occurB.large quantities of oil are consumedC.lube oil viscosity is always decreasedD.corrosive by-products are usually formed
Which of the following statements is correct regarding an oil with a high viscosity index?A.A large change of viscosity occurs with a minor change in temperatureB.No change in viscosity occurs with any change in temperatureC.Very little change in viscosity occurs with a significant change in temperatureD.The viscosity of the oil increases with an increase in temperature
What is a solid at ambient temperature ________．A.AnilineB.Formic acidC.Methyl chlorideD.Napthalene
控制时间限设定值菜单（）功能是在丙烷机启动过程中旁通润滑油注入温度低信号的时间长度。A、LO OIL INJECTION TEMPERATURE BYPASSB、FILTER DIFFERENTIAL PRESSURE CHANGE-OVER TIMERC、PUMP RUN LIMIT WITHOUT OIL PRESSURE TIMERD、AUTO RESTART AFTER POWER FAILURE TIMER
控制时间限设定值菜单（）功能是在丙烷机断电后到丙烷机重新启动之间的时间间隔。A、LO OIL INJECTION TEMPERATURE BYPASSB、FILTER DIFFERENTIAL PRESSURE CHANGE-OVER TIMERC、PUMP RUN LIMIT WITHOUT OIL PRESSURE TIMERD、AUTO RESTART AFTER POWER FAILURE TIMER
At the discharging port, tankers pump the oil ashore using （）.A、shore pumpsB、her own pumpsC、large pumpsD、large tubes
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A large change in ambient temperature, or using an oil of a viscosity different from the one recommended by the manufacturer in a mechanical hydraulic governor, will result in the need to adjust the （）.Apilot valve openingBcompensating needle valveCcompensating spring tensionDaccumulator spring tension
单选题Whether using a centrifuge or a simple filter, oil cleaning and filtration will be the most effective when the oil is at a （）.Ahigh temperature and a high viscosityBhigh temperature and a low viscosityClow temperature and a high viscosityDlow temperature and a low viscosity
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You are cleaning the tanks after carrying a cargo of crude oil. Which statement is TRUE? （）AWashing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleanedBThe hoses to portable cleaning machines should be disconnected before the machines are removed from the tankCThe principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residueDSteam cleaning and water washing are both capable of generating electrostatic charges within a tank
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Thermocouple pyrometers are used on large, main propulsion diesel engines to indicate the temperature of the（）Acooling water leaving each cylinderBfuel oil entering the injectorCexhaust gases at various locationsDlube oil at the bearing supplies
单选题In order to start a large, low-speed, main propulsion diesel engine on high viscosity fuel after an extended shutdown, the （）Afuel must be preheatedBintake air should be preheatedClube oil outlet temperature should be increased 20℃ above normalDnone of the above
单选题If the temperature drops low enough, oil will not flow, （） just tell us the temperature.AHash pointBViscosityCPour pointDCetane number
单选题Large, two-stroke/cycle, main propulsion, diesel engine cylinders can be successfully pressure charged during normal operation, by using the （）.Aexhaust gas temperature systemBexhaust load systemCconstant or pulse pressure systemDconstant volume system
单选题Demulsibility of a lube oil is defined as （）.Athe ability of oil to separate from waterBthe temperature at which oil flows rapidlyCa measure of the water in a lube oil systemDan emulsion of different grades of oil
单选题A large, low-speed, crosshead, main propulsion diesel engine using residual fuel oils must have a cylinder oil having a （）Alow TBN valueBhigh alkaline reserveClow flash pointDhigh pour point
单选题An automated diesel engine should normally shut down due to （）Alow lube oil temperatureBhigh ambient air temperatureClow tube oil pressureDhigh exhaust system back pressure
单选题When bilge water is heated in a holding tank, which one of the following statements is not accurate?（）AThe high temperature facilitates primary gravity separationBMost of the oil and organic solvents are raised to the top layerCThe high the temperature is, the more the top oil will be collectedDThe high temperature has little use on the separation of emulsified oil
单选题Ambient temperature is the （）.Aamount of temperature rise with no loadBtemperature of the compartment where the motor is locatedCnormal operating temperature, less the room temperatureDamount of temperature developed by an operating motor
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Which of the following statements is correct concerning the viscosity of lubricating oil?（）AViscosity will increase as temperature increasesBViscosity is a measure of a fluid s internal resistance to flowCViscosity will decrease as temperature decreasesDViscosity is not dependent on temperature
单选题The degree to which the viscosity of an oil will change with a change in temperature is indicated by the （）.Aweight designationBviscosity indexCpour pointDthermal change value
单选题Which of the following statements is correct regarding an oil with a high viscosity index?（）AA large change of viscosity occurs with a minor change in temperatureBNo change in viscosity occurs with any change in temperatureCVery little change in viscosity occurs with a significant change in temperatureDThe viscosity of the oil increases with an increase in temperature
单选题Which of the following conditions may need to be reduced when operating a large, low speed, main propulsion, diesel engine at low loads?（）AInjection pressuresBControl air supply pressureCCooling water flow through after-coolersDLube oil temperature