A．ir trapped in the hydraulic fluid of a steering system may be indicated by

A．the steering pumps overspeeding

B．a jammed open relief valve

C．a constantly occurring improper rudder response

D．excessive ram pressure

[单选题]Overheating of the hydraulic fluid in an electro-hydraulic anchor windlass can result from a/an( ).A．overload on the pump motorB．low fluid level in the reservoirC．low fluid viscosity around the shaft sealD．high oil level in the sump

What type of valve is used to direct the flow of hydraulic fluidA. Direction con

[单选题]The most serious effect of air trapped in a diesel engine jacket water cooling system is that it（）.A . causes colloid suspension in the cooling waterB . reduces the capability of the lubrication systemC . can form pockets which block the flow of cool

[单选题]The amount of fluid delivered by a positive displacement pump can be regulated by _____.A．throttling the pressure lineB．changing the speed of the driving rotorC．either A or BD．None of the above is tree

[名词解释] 水压力（hydraulic pressure）

[单选题]The hydraulic （） is used to control engine speed.A . motorB . pumpC . governorD . capsta

[名词解释] 英译汉：hydraulic

[名词解释] 水力混合（hydraulic mixing）

[单选题]This hydraulic power station was built( )A.50 years agoB.in 50 yearsC.by 50

[单选题]fluid是指哪个模块（）A . 流体B . 建模C . 贴图D . 渲染