单选题For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）Athe temperature and flow quantity of the exhaust gas from M.EBthe quantity of steam demandedCthe rotary speed and the cooling water temperature of main engineDefficiency of M.E turbocharger
单选题
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
A
the temperature and flow quantity of the exhaust gas from M.E
B
the quantity of steam demanded
C
the rotary speed and the cooling water temperature of main engine
D
efficiency of M.E turbocharger
参考解析
解析：
暂无解析
相关考题：
The effect that exhaust gas recirculation can reduce NOX formation is partly due to a reduction of the()concentration in the combustion zone and partly due to the content of water and carbon dioxide in the exhaust gas.A.OxygenB.NitrogenC.SulphurD.Freon
A dry-type spark arrestor removes sparks from a diesel engine exhaust by ____.A.increasing the linear velocity of the exhaust gasesB.changing directions of exhaust gas flowC.decreasing the temperature of the exhaust gasesD.accelerating the exhaust gas through a reduced size orifice
The maximum pressure developed by a waste heat boiler is determined by the main engine exhaust ______.A.gas compositionB.gas temperatureC.pressureD.timing
A bypass line provided around a waste heat auxiliary boiler in a diesel engine exhaust system, may be used to avoid boiler ______.A.corrosion at low engine loadsB.erosion at high engine loadsC.overload at high engine loadsD.scaling at all exhaust temperatures
Which method is used to supply inert gas from a flue gas system to the cargo tanks?A.Exhaust gas pressure from the stackB.High capacity fanC.Inert gas compressorD.Natural aspiration
Which statement about the inert gas system is TRUE ________．A.Boiler soot blowers should never be used when the IG system is operatingB.The boiler will produce the best quality of flue gas for the IG system when the boiler load is very lightC.The boiler will produce the most quantity of flue gas for the IG system when the boiler load is very lightD.Flue gas with excessive oxygen content is de-oxygenated in the scrubber
The exhaust pipe must be gas tight throughout its entire length otherwise ______．A.Bilge water may enter the exhaust pipeB.Entry of air may cause vapor lockC.Carbon monoxide may enter the interior of the vesselD.The joint gaskets may be blown
单选题The exhaust pipe must be gas tight throughout its entire length otherwise（）.Abilge water may enter the exhaust pipeBentry of air may cause vapor lockCcarbon monoxide may enter the interior of the vesselDthe joint gaskets may be blown
单选题What recommendation is given to the company?AIt should expand its assets.BIt should hire a foreign executive.CIt should increase its workforce.DIt should open an overseas subsidiary.
单选题The hot expanding gas rotates the blades of the exhaust turbine, thus giving out large part of its power, which drives （）.Athe oil separatorBthe fresh water generatorCthe compressorDfire pump
单选题The water level of an exhaust gas boiler which is independent of the auxiliary boiler and just as the extra heating surface of it （）Awill be modulated in proportionBwill be modulated in proportion and integralCwill be modulated in proportion and differentialDwill not be modulated at all
单选题For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）Athe temperature and flow quantity of the exhaust gas from M.EBthe quantity of steam demandedCthe rotary speed and the cooling water temperature of main engineDefficiency of M.E turbocharger
单选题An exhaust gas bypass is installed on a waste heat boiler in order to （）.Abypass exhaust gas at high loads to prevent excessive back pressureBbypass a portion of the exhaust gas at peak loads for better efficiencyCrecycle exhaust gas to the turbochargerDminimize moisture condensation in the boiler gas passages at low loads
单选题The diesel engine exhaust gas bypass, as fitted with some waste heat boilers, is installed to （）Aprevent engine back pressure at heavy loadsBincrease total engine efficiency at low loadsCprevent boiler corrosion at low engine loadsDimprove engine fuel consumption at any load
单选题Diesel engine mufflers or silencers reduce the engine exhaust noise by （）Apassing the exhaust through long head pipesBdiffusing exhaust vibrations through activated carbon bafflesCincreasing the exhaust gas velocityDreducing the exhaust gas velocity
单选题Diesel engine exhaust noise can be reduced in an exhaust muffler by （）Achanging the direction of exhaust gas flowBincreasing the exhaust gas velocityCchanging the exhaust gas weightDincreasing the exhaust gas static pressure
单选题The exhaust system of a diesel engine is usually designed to remove exhaust gases and to （）Aprovide exhaust back pressureBprevent exhaust smoke emissionsCpower a reciprocating superchargerDmuffle exhaust gas noise
单选题The purpose of designing some waste heat boilers with sinuous fire tubes, is to（）Aincrease exhaust gas velocity through the boilerBreduce accumulations of carbon deposits on the heat transfer surfacesCeliminate exhaust gas pulsations and noiseDincrease the rate of heat transfer to the waterside
单选题A dry-type spark arrestor removes sparks from a diesel engine exhaust by（）Aincreasing the linear velocity of the exhaust gasesBchanging directions of exhaust gas flowCdecreasing the temperature of the exhaust gasesDaccelerating the exhaust gas through a reduced size orifice
单选题Exhaust pipes for separate diesel engines can be combined only when （）Aspace limitations prevent separately run pipesBthe engines are small auxiliary unitsCthey are arranged to prevent gas backflow to each engineDa waste heat boiler is installed
单选题The exhaust boilers are used to recover some of （） carried in the exhaust gas from the main engine.AwaterBoilCheatDsteam
单选题At normal sea going, we use （） instead of donkey boiler.Aa heaterBa pre-heaterCan exhaust gas boilerDthe coal burning boiler
单选题Fins are installed on the generating tube surfaces in waste heat boilers to （）.Aprevent soot fires in the exhaust systemBprevent exhaust gas erosion of the tubesCincrease the velocity of exhaust gas flowDincrease the rate of heat transfer
单选题The boiler is fired （） the demand for steam exceeds that available from exhaust gas heating.AwheneverBhoweverCwhereverDwhether
单选题An indication of an overloaded main propulsion diesel engine is （）Awhite smoke in the exhaustBhigh exhaust gas pyrometer readingsCsparks in the exhaustDblue smoke in the exhaust
单选题For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）Athe temperature and flow quantity of the exhaust gas from M/EBthe quantity of steam demandedCthe rotary speed and the cooling water temperature of main engineDefficiency of M/ turbocharger