Gear box
Gear box
相关考题：
The box of bricks hit the man because______.A. the box of bricks was heavier than himB. the box of bricks was lighter than himC. the box of bricks came down too fastD. the man was too careless
下列代码中可以使控件Txt Box获得焦点的是( )。A．set Txt Box. focusB．set Txt Box. focus=trueC．Txt Box. Set FocusD．Txt Box. Set Focus=true
Wear occurring at the tips of the reduction gear teeth is usually the result of ______.A.surface fatigueB.fretting corrosionC.heavy overloadingD.gear misalignment
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控制面板显示EnvTem、GeaOilLev表示：（）A、Gear oil lev switch、Environ temperatureB、Gear oil level、Environment temperatureC、Gear oil level switch、Environment temperatureD、Gear oil level switch、Environment temp
下列哪一个jQuery命令的语法是正确的（）。A、$（"#book"）.fadeOUT（）B、$（"#box"）.fadeOut（）.fadeIn（）C、$（#box）.fadeOut（）.fadeIn（）D、$（"#box"）.fadeOut（）.fadeInOUT（）
单选题下列哪一个可以作为链式jQuery命令的示例（）。A$（#box）.fadeOut（）.fadeIn（）B$（#box）.fadeOut（）.fadeIn（）C$（box）.fadeOut（）.fadeIn（）D$（#box）.fadeOut（）.fadeIn（）
单选题When the steering wheel is turned, oil is directed to the steering gear rams by（）Amodulating the oil flow with the six-way valveBmoving the automatic pressure differential valveCmoving the receiving telemotor which regulates the tow-way valveDvarying the eccentricity of a floating ting or angle of a tilting box
单选题An advantage of a helical gear pump over a simple gear pump is that the helical gear pump is capable of （）.Amaintaining a steadier speedBdelivering liquids over greater distancesCoperating for longer periods of timeDproducing a smoother discharge flow
单选题Which of the following is NOT true according to the passage?（）ABoth the main steering gear and the auxiliary steering gear should be operatedBThe alarms fitted to the remote control system should be operatedCThe emergency generator compartment should be checkedDThe communication system between the bridge and the steering gear compartment should be operated
单选题A vessel is “engaged in fishing” when（）.Aher gear extends more than 100 meters from the vesselBshe is using any type of gear，other than linesCshe is using fishing apparatus which restricts her maneuverabilityDshe has any fishing gear on board
单选题下列哪一个选项可以作为链式jQuery命令的示例（）。A$（#box）.fadeOut（）.fadeIn（）B$（#box）.fadeOut（）.fadeIn（）C$（box）.fadeOut（）.fadeIn（）D$（#box）.fadeOut（）.fadeIn（）
单选题Before starting the turning gear, （） should be worked by hand to minimize corrosive action on the liners.Athe indicatorsBthe starting valvesCthe cylinder lubricatorsDthe turning gear
单选题Rotation of the steering wheel on the navigation bridge initiates oil pressure being applied to the steering gear rams by （）.Aregulating the oil flow with the six-way valveBmoving the automatic differential valveCmoving the receiving tele-motor which regulates the two-way valveDvarying the angle of a tilting box or eccentricity of a floating ring
单选题At the top of the A-frames there is a strong cast iron frame called （）.Acylinder linerBcylinder coverCthe gear boxDthe scavenging box
单选题Pitting in the area close to the pitch line and on the same end of each gear tooth of a reduction gear unit would be caused by （）Acorrosion on the gearsBexcessive gear speedCdirt in the oilDmisalignment of the gears
单选题Some medium and high-speed diesel engines require reduction gear units to provide a useful propeller speedIn most reduction gears, the bull gear（）Amust churn the oil in the sumpBis connected to the propeller shaftCis driven at the highest RPMDcompensates for alignment variations between the engine and pinion gear
单选题The oil in a cargo winch gear box should be sampled periodically to （）.Aprevent the gear box from leakingBprevent the oil from becoming inflammableCmake sure it has not become contaminatedDmake sure the motor bearings are lubricated
单选题The safe working load for the assembled cargo gear and the minimum angle to the horizontal for which the gear is designed shall be marked on the（）.AdeckBhead of the boomCheel of the boomDmast or king post
单选题With reference to rules governing steering gear, which one of the following rules is incorrect? （）AIt is required that all ships are provided with two independent steering gear systems that is one main and one auxiliaryBThe auxiliary gear could be power operated in passenger shipsCThe auxiliary gear must be of adequate strength and sufficient to steer a ship at navigable speedDAll moving parts of the steering gear must be guarded against any possible damage
单选题When there is no movement of the rams on an electro-hydraulic steering gear, the tilting box of the running pump is （）.Aset for maximum torqueBon the purge and vent strokeCin the neutral positionDrotating backwards