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水力混合（hydraulic mixing）
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The chief foreman asked the stevedores not to forget to use separation nets to avoid________ different lots of cargoA.mix inB.mix withC.mixing upD.mixing into
考题
Among the basic categories of equipment, which of the following are used to allow the hydraulic energy to be controlled?A.hydraulic pumpsB.valvesC.hydraulic cylindersD.hydraulic motors
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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 of the hydraulic fluid
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Among the basic categories of equipment, which of the following are used to convert the hydraulic energy into linear motion?A.hydraulic pumpsB.valvesC.hydraulic cylindersD.hydraulic motors
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随着雷诺数由小到大，液流流态变化依次是( )A.层流、水力光滑区、混合摩阻区、完全粗糙区B.水力光滑区、混合摩阻区、完全粗糙区、层流C.层流、混合摩阻区、水力光滑区、完全粗糙区D.层流、水力光滑区、完全粗糙区、混合摩阻区
考题
Among the basic categories of equipment, which of the following is used to convert hydraulic energy into continuous rotary motion?A.hydraulic pumpsB.valvesC.hydraulic cylindersD.hydraulic motors
考题
随着雷诺数由小到大，液流流态变化依次是（）。A、层流、水力光滑区、混合摩阻区、完全粗糙区B、水力光滑区、混合摩阻区、完全粗糙区、层流C、层流、混合摩阻区、水力光滑区、完全粗糙区D、层流、水力光滑区、完全粗糙区、混合摩阻区
考题
Are you testing the（）(液压舱盖)?A、hydraulic hatch coverB、hydraulic release unitC、hydraulic oil jackD、automatic hatch cover
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单选题Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and （）.A
fluid frictionB
fluid turbulenceC
component misalignmentD
pressure surges
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单选题In a shell-and-tube type hydraulic fluid cooler, the amount of heat transferred from the hydraulic fluid to the cooling water depends upon（）A
the temperature of the hydraulic fluidB
the flow rate of the hydraulic fluidC
the temperature of the cooling waterD
all of the above
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单选题If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be （）.A
a low load on the unitB
a clogged pump suction strainerC
a blockage in the line between the pump and hydraulic motorD
the hydraulic motor turning too fast
考题
判断题Blend材质类型中的Mixing Curve与Mix Amount一起控制混合材质的混合情况。（）A
对B
错
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