单选题The engine may lose power or slow down during running, when this occurs, the first cause possible may be hot bearings and （） of the pistons in the cylinders.AcrackBknockingCleakingDseizure
单选题
The engine may lose power or slow down during running, when this occurs, the first cause possible may be hot bearings and （） of the pistons in the cylinders.
A
crack
B
knocking
C
leaking
D
seizure
参考解析
解析：
暂无解析
相关考题：
单选题直航船未鸣放“五短声”怀疑警告声号，即独自采取操纵行动，以避免碰撞的做法，是：（）A对遵守《国际海上避碰规则》各条的疏忽B对海员通常做法可能要求的任何戒备上的疏忽C对特殊情况可能要求的任何戒备上的疏忽D该做法并无违背《国际海上避碰规则》之处，是符合通常做法的
单选题The crank throws are displaced from （） to obtained the same number of degrees between the different crank throws.Aone anotherBthe otherCeach otherDeach others
单选题In order to properly remove air from the casing of a centrifugal pump when starting, the pump should have a （）.Apositive headBnegative suction headCmechanical sealDvent valve attached to the casing at the top of the volute
单选题The inner part of the condenser should be cleaned with （）.Agas oilBdiesel oilCchemical compoundDFreon-12
单选题在NAKAKITA型燃油黏度控制系统中，若测黏计毛细管中间部位破损，则系统的故障现象为（）。A对柴油程序加温到上限值B对重油进行油温上限值的定值控制C重油黏度不断升高D重油黏度不断降低
单选题下列关于船舶证书说法正确的是（）。 Ⅰ．展期的期限一律不得超过5个月； Ⅱ．未经展期的证书，给予最多1个月的宽限期限； Ⅲ．已经展期过的证书不得再展期。AⅠ+ⅢBⅡ+ⅢCⅡ+ⅢD仅仅Ⅰ对
单选题The transmission time duration of a single pulse of radio-frequency energy is a function of the（）.ApersistenceBpulse repetition rateCpulse lengthDresolution
单选题关于船舶进坞操纵，下列哪个说法正确。（） Ⅰ进坞操纵掌握船在坞门外船位很关键 Ⅱ在静水港主要考虑风的影响 Ⅲ在潮流港一般浮船坞与流向垂直 Ⅳ在潮流港一般干船坞与流向垂直AⅠ～ⅣBⅠ～ⅢCⅠ、ⅡDⅠ、Ⅱ、Ⅳ
单选题How would you pass a red buoy in the maritime buoyage system “A”? （）Akeep the buoy on the vessel's starboard side when approaching a port and on the vessel's port side when leavingBkeep the buoy on the vessel's port side when approaching a port and on the vessel's starboard side when leavingCkeep the buoy on the vessel's starboard side when approaching and leavingDkeep the buoy on the vessel's port side when approaching and leaving
单选题有关雷达的使用，下列说法正确的是（）A天气良好时，只要有可能，值班驾驶员应进行雷达方面的操练B在能见度不良时，正确地使用雷达包括进行远距离的扫描和对观测到的物标进行雷达或与其相当的系统观测CA、B均正确DA、B均不正确
单选题载重线公约要求（）。A船舶在始发港应满足所适用的载重线B船舶在目的港应满足所适用的载重线C船舶在中途港应满足所适用的载重线D船舶在整个航程都应满足所适用的载重线