单选题The oil quantity for bearing lubrication should be applied in such an amount as to be sufficient to carry away the () caused by the friction at the bearings.AacidsBadditivesCheatDgear
单选题
The oil quantity for bearing lubrication should be applied in such an amount as to be sufficient to carry away the () caused by the friction at the bearings.
A
acids
B
additives
C
heat
D
gear
参考解析
解析:
暂无解析
相关考题:
单选题A gas-free certificate would usually be issued by a(n)().ACCS marine surveyorBcertified marine chemistCport engineerDMSA marine inspector
单选题某电炉电阻丝的电阻为10Ω,接在电压为220V的电源上,其功率为()W;如果将电阻丝去掉一半,还接在电压为220V的电源上,其功率为()W。A4840/2420B4840/9680C9680/4840D2420/4840
单选题信息服务是船舶交通管理系统实施船舶交通管理的主要形式,所提供的服务内容包括()。 Ⅰ、发布区域内通航环境实时信息如船舶动态、能见度和他船意图以协助船舶; Ⅱ、与船舶交换有关安全的所有信息; Ⅲ、向船舶发布通航水域中诸如特殊作业的航海警告; Ⅳ、与船舶交换有关船舶公司安全管理信息AⅠ~ⅣBⅠ、ⅡCⅡ~ⅣDⅠ~Ⅲ
单选题The domestic fresh water pump starters are controlled by pressure switches which operate when the pressure in the tank varies within predetermined limits as water is drawn offThe word “which” means ().AstartersBpressure switchesCpressureDwater
单选题在往复惯性力较大而连杆大端刚性较小的情况下,四冲程柴油机曲辆销与主轴颈磨损较大的部位在()。A曲柄销内侧,主轴颈远离曲柄销一侧B曲柄销外侧,主轴颈近曲柄销一侧C曲柄销内侧,主轴颈近曲柄销一侧D曲柄销外侧,主轴颈远离曲柄销一侧
单选题按交通运输部规定船舶厂修分为小修、检修、航修,其中航修属于(),其目的是()。A计划性修理,提前30天提交修理计划/解决营运中影响安全的局部故障B临时性修理,不编计划/解决船检要求的修理项目C计划性修理,提前30天提交修理计划/解决船检要求修理项目D临时性修理,不编计划/解决营运中影响安全而船员不能自修的局部故障
单选题In the design of hydraulic piping and equipment consideration is given to minimize turbulence in the hydraulic fluid, as this will cause()Amolecular fluid vibrationBenergy lossesCwide pressure variationsDmechanical damage to control valves
单选题根据《船上油污应急计划》,船舶发生管系泄漏时,应采取下列哪些措施()。 Ⅰ.立即停止有关操作,关闭管系上的所有阀门; Ⅱ.发出溢油报警信号; Ⅲ.实施最初的溢油应急反应程序; Ⅳ.将事故情况通知供油船(设施)。AⅡ~ⅣBⅠ~ⅢCⅠ、Ⅲ、ⅣDⅠ~Ⅳ
单选题下列有关集装箱船特点的描述,不正确的是()。A多数为单层甲板B双层船壳C舱内不能有导轨D有由导轨、撑材及安置于导轨顶部的导箱构件组成的箱格导轨装置