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流体压力（fluid pressure）
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更多 “流体压力（fluid pressure）” 相关考题
考题
Air trapped in the hydraulic fluid of a steering system may be indicated byA.the steering pumps overspeedingB.a jammed open relief valveC.a constantly occurring improper rudder responseD.excessive ram pressure
考题
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
考题
What type of valve is used to direct the flow of hydraulic fluid?A.relief valveB.direction control valveC.stop valveD.pressure control valve
考题
Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and ______.A.fluid frictionB.fluid turbulenceC.component misalignmentD.pressure surges
考题
Pressure drop in an operating hydraulic system is developed ______.A.only by the pump as its primary functionB.by resistance to the fluid flow through the systemC.by the thermal input to the system's fluidD.solely(单独地) by the charge applied by the accumulators
考题
In order to withstand fluid head pressure on a ship，stiffeners are often attached to the bulkhead ______.A.penetrationsB.platingC.framingD.brackets
考题
关于Maya中的Fluid Effects（流体特效）说法错误的是（）。A、Maya中的Fluid Effects（流体特效）是基于动力学计算的，可以产生真实的流体运动效果，例如，制作空气、烟火、爆炸、粘性流体等B、流体可以分为动力学流体和非动力学流体两种类型C、从渲染形态上来讲，流体可以是气态效果，也可以是固态效果，这些效果都可以不在流体容器中生成D、可以通过调整流体与海洋材质模仿水面产生涟漪的效果
考题
单选题Which of the following statements represents the advantage of rotary pumps as compared to reciprocating pumps?（）A
The high discharge pressure of the rotary pumps permits a larger volume of fluid per unit time than the reciprocating pumpB
Rotary pumps are capable of pumping more fluid than reciprocating pumps of the same weightC
Rotary pumps occupy only one-half the space of reciprocating pumpsD
Rotary pumps eliminate discharge slippage of the pumped liquid, while this does not hold true for a reciprocating pump
考题
单选题Clean air standards referred to as “Grade D” apply to compressed air for use in（）.A
high pressure fluid accumulatorsB
driving air-powered plunger pumpsC
filling open-circuit breathing systemsD
bladder-type accumulators
考题
单选题A more sophisticated pressure reducing valve incorporates a pilot valve which controls the fluid above the valve operating piston in response to downstream pressureThe bold and italic word “which” means （）.A
a pressure reducing valveB
a pilot valveC
an operating pistonD
downstream pressure
考题
单选题In order to withstand fluid head pressure on a ship，stiffeners are often attached to the bulkhead（）.A
penetrationsB
platingC
framingD
brackets
考题
单选题Compensated flow control or constant flow valves are used in hydraulic systems to（）A
compensate for major leaks in the systemB
maintain the original fluid viscosityC
allow for changes in pressure and temperature within the systemD
assure constant fluid temperature
考题
单选题If a hydraulic pump is overheating, the cause may be （）.A
excessive internal leakage in the pumpB
low discharge pressure and fluid flowC
excessive fluid level in the hydraulic reservoirD
operation of the pump at 100% efficiency
考题
单选题After 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 should be readjustedD
The system should be drained and renewed with a fluid of different operating characteristics
考题
单选题Overflow valve is used to （）A
control the fluid flow through itB
prevent the pressure before it over the specified valveC
make the pressure after it steadyD
control the direction of oil flow
考题
单选题The general purpose of a heat exchanger is to （）.A
eliminate hot air from the condenserB
maintain steady pressure in a systemC
heat, or cool one fluid by means of another fluidD
reduce the engine room temperature in tropical climates
考题
单选题关于Maya中的Fluid Effects（流体特效）说法错误的是（）。A
Maya中的Fluid Effects（流体特效）是基于动力学计算的，可以产生真实的流体运动效果，例如，制作空气、烟火、爆炸、粘性流体等B
流体可以分为动力学流体和非动力学流体两种类型C
从渲染形态上来讲，流体可以是气态效果，也可以是固态效果，这些效果都可以不在流体容器中生成D
可以通过调整流体与海洋材质模仿水面产生涟漪的效果
考题
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
考题
单选题Pressure in an operating hydraulic system is developed （）.A
only by the pump as its primary functionB
by resistance to the fluid flow through the systemC
by the thermal input to the systems fluidD
solely by the charge applied by the accumulators
考题
单选题The pressure head of a pump is given in the unit of （）.A
kgB
MPaC
meter fluid columnD
None of the above is true
考题
单选题The amount of fluid delivered by a helical pump can be regulated by （）.A
throttling the pressure lineB
changing the speed of the rotorC
either A or BD
None of the above is tree
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