单选题The hot expanding gas rotates the blades of the exhaust turbine, thus () a large of its power, () drives the compressor.Ato give off;whichBgiving off;whichCto give off;thatDgiving off;that

单选题
The hot expanding gas rotates the blades of the exhaust turbine, thus () a large of its power, () drives the compressor.
A

to give off;which

B

giving off;which

C

to give off;that

D

giving off;that


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

An indication of an overloaded main propulsion diesel engine is( ).A.white smoke in the exhaustB.high exhaust gas pyrometer readingsC.sparks in the exhaustD.blue smoke in the exhaust

A water jacket is placed around the exhaust manifolds of propulsion diesel enginesto( ).A.reduce heat radiation to the engine roomB.aid in preventing turbocharger overheatingC.condense and drain moisture from exhaust gasesD.dampen exhaust gas pulsations in the manifold

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

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

热通道(hot gas path)

单选题Hot gas defrosting uses the hot gas from () to defrost the evaporator.Astarting air bottlesBdiesel enginesCboilersDrefrigeration compressors

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A water jacket is placed around the exhaust manifolds of propulsion diesel engines to()Areduce heat radiation to the engine roomBaid in preventing turbocharger overheatingCcondense and drain moisture from exhaust gasesDdampen exhaust gas pulsations in the manifold

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 mufflers accomplish noise reduction by ()Areducing exhaust gas velocityBincreasing the frequency of gas vibrationCthe use of long head pipesDthe use of zinc electrodes

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After passing through the turbine the exhaust gas is conducted out into the().AintercoolerBcompressorCcylinderDopen air

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The normal color of the exhaust gas of the diesel will be ()Aachromatism or thin grayBthin whiteCsky-blueDblack

单选题Generating tubes in waste heat boilers are finned to ().Areduce gas flow turbulenceBprevent exhaust gas corrosionCincrease the rate of combustionDincrease the rate of heat transfer

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The exhaust boilers are used to recover some of () carried in the exhaust gas from the main engine.AwaterBoilCheatDsteam

单选题Which of the following conditions may contribute to the formation of deposits on the blades of the turbocharger turbine?()APoor combustionBHigh cylinder oil consumptionCLeaking exhaust valvesDAll of the above

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When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the conditions listed will indicated?()AAdvanced ignitionBClogged air intakeCLeaky exhaust valveDHigh exhaust pressure

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

单选题“This increase in charge air density is accomplished on most modern diesel engine types by use of exhaust gas turbo-charging, in which a turbine wheel driven by exhaust from the engine is rigidly coupled to a centrifugal type air compressor” According to this sentence, we can know that increases density(), drives the compressor directly()Aa modern diesel engine;a turbine wheelBa modem diesel engine;exhaust gasesCa compressor;an exhaust gas turbochargerDa compressor;a turbine wheel