单选题It is easier to replace a dry cylinder liner than a wet one because()Aof the thin wall thicknessBhoning makes it easier to maintain the desired oil ilmCwater seals are not requiredDit fits more loosely due to a decrease in heat transfer through the composite wall
单选题
It is easier to replace a dry cylinder liner than a wet one because()
A
of the thin wall thickness
B
honing makes it easier to maintain the desired oil ilm
C
water seals are not required
D
it fits more loosely due to a decrease in heat transfer through the composite wall
参考解析
解析:
暂无解析
相关考题:
Diesel engine blow-by is the leakage of combustion gases past the( ).A.oil rings onlyB.compression and scraper ringsC.cylinder liner sealingD.cylinder liner ring grooves
According to the stranger, in the West the winters are______.A. dry and coldB. warmer than in the EastC. wet and coldD. mild
Why is it necessary to extend ventilators of gasoline powered vessels to the bilges ________.A.To keep them dry,and thus easier to cleanB.To remove fuel vapors which are heavier than airC.To provide adequate air to the enginesD.To cool the machinery areas
One of the benefits of the new model is that it is easier()than the old one.AoperatingBto be operatedCto operateDoperated
One of the benefits of the new model is that it is easier()than the old one.A、operatingB、to be operatedC、to operateD、operated
湿货要远离干货。()A、Wet cargo must be kept away from dry cargo.B、Heavy cargo must be kept away from dry cargo.C、Light cargo must be kept away from dry cargo.D、Wet cargo must be kept away from light cargo.
单选题Because the castings of smaller engines are not so big and heavy, () and cylinder block may be made in one piece.Athe columnBthe jacketCcylinder coverDcylinder liner
单选题One advantage of dry cylinder liners used in a diesel engine is the()Alower thermal expansion rates than wet linersBgreater heat transfer rate than wet linersCgreater wear resistance than wet linersDprocedure to replace dry liners is simpler than for wet liners
单选题In addition to lubricating, cylinder oil assists in forming a gas seal and contains () which clean the cylinder liner.AadditivesBwaterCgreaseDacid solution
多选题When your WebLogic Server solution needs to be scaled out with additional capacity and you Don’t want to add additional hardware, which three techniques should you us?()AAssign more than one managed server to a physical hardware that allows better CPU utilizationBAssign more than one application to one managed server to better utilize threads within a single JVM processCAssign the same application to more than one managed server to load balance requests between serversDAssign the same heap size to the managed server across the cluster for easier control of memory footprintECreate a virtualized environment with hypervisor for an easier solution
单选题The reason that it is easier to describe one’s personality in words than one’s face is that ______.Amany words are available to describe personalityBa person’s personality is easily distinguishedCpeople’s personalities are very much alikeDa person’s face is more complex than his personality
单选题The dew point of air is reached when the wet bulb temperature is ().ATwice the dry bulb temperatureB10℃ above the dry bulb temperatureC5℃ above the dry bulb temperatureDEqual to the dry bulb temperature
单选题The dew point temperature is().Aalways higher than the air temperatureBalways lower than the air temperatureCequal to the difference between the wet and dry bulb temperaturesDthe temperature at which the air is saturated with water vapor
单选题Improper cooling of a diesel engine cylinder liner due to the accumulation of scale deposits may cause ().Alow compression pressureBincreased piston wearCincreased cylinder lube oil consumptionDpoor contact between compression rings and liner
单选题The diameter of a piston is usually less at the crown than at the skirt, in order to ().Afacilitate the installation of piston ringsBallow for the expansion of the piston during operationCprevent crankcase vapors from entering the combustion chamberDreduce wearing of the upper cylinder liner
单选题One of the advantages in the use of a dry liner over a wet liner is()Ait is fitted with neoprene O-ring sealsBthe honing process makes it easier to maintain the desired oil filmCthere is likelihood of water leaking into the combustion spaceDit fits more loosely due to a decrease in heat transfer through the composite wall
单选题The cylinder liner forming the cylinder wall and the inside of the water jacket is called a()Adry linerBwet linerCjacket linerDcorrugated liner
单选题In a diesel engine, an integral liner is one in which the cooling water () Ⅰ.flows through the cylinder liner jackets Ⅱ.touches the outer side of the linerAⅠ onlyBⅡ onlyCboth Ⅰ and ⅡDneither Ⅰ and Ⅱ
单选题The cylinder head, cylinder liner and () form the combustion chamber.AframeBpistonCcrankcaseDexplosion plate
单选题On the top of the cylinder is mounted the cylinder cover which is pressed onto () of the cylinder liner by means of nuts and studs.Athe camshaftBthe flangeCthe ridgeDthe bulge
单选题Which of the following statements concerning cylinder liner wear is true?()ALiner wear is distributed equally between the upper and lower portions of the cylinderBExcessive liner wear causes wear between piston ring and grooveCExcessive, but uniform liner wear will not cause wear between piston ring and grooveDLiner wear is normally greatest in the middle of the cylinder
单选题There is a support ring between the cylinder block and collar of the cylinder liner, thus carrying both the liner and the cylinder coverIt also passes to the cooling bores and to the cover()Acooling waterBcooling oilCrefrigerantDlubricate oil
单选题The cylinder is fitted with internal liner so that a water space is left () the liner and the outer wall.AaroundBamongCinDbetween
单选题One of the benefits of the new model is that it is easier()than the old one.AoperatingBto be operatedCto operateDoperated
单选题A properly honed diesel engine cylinder liner will()Aprevent piston ring wearBshorten the ring break-in periodCprevent cylinder liner glazingDappear slick and glazed