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

[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

[名词解释] 水压力（hydraulic pressure）

[名词解释] 英译汉：hydraulic

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

[名词解释] 水力混合（hydraulic mixing）

[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

[单选题]A．fter installing a new hydraulic pump in a system, what special attention should be given to the hydraulic system?A．The relief valves in the system should be readjustedB．The filters and strainers should be checked frequentlyC．All system pressure sho

[单选题]If you install a new hydraulic hose in a hydraulic system, the hose must be long enough to allow for contraction to preventA．failure of the hydraulic hoseB．excessive flow through the lineC．friction in other areas of the hydraulic systemD．overheating

[单选题]One function provided by a hydraulic accumulator is to ___.A．provide an area where air can separate from the oilB．provide an area to separate solid contaminants from the oilC．act as an oil and water separatorD．absorb shocks occurring in the system