An axial轴向 piston pump differs from a radial piston pump as the pistons of an axial piston pump are positioned （）.
1、A supercharged engine differs from an
A supercharged engine differs from an un-supercharged engine it operates at an increases pressure（）.Ain whichBon whichCat whichDin that
2、If a radial piston hydraulic pump fail
If a radial piston hydraulic pump fails to deliver rated fluid volume, the cause can be （）.Acontaminated fluidBpitted thrust ringsCworn pintle bearingsDobstructed suctions passage
3、A Document of Compliance differs from
A Document of Compliance differs from a Safety Management Certificate in that the former is issued to （）by the Administration.Aa shipBa companyCa chartererDa manager
4、With reference to an axial piston pump
With reference to an axial piston pump, which one of the following statements is true?（）AThe cylindrical barrel is coupled to the motorBThe cylindrical barrel has an odd number of boresCThe bores end in socketsDThe sockets fit in the swash plate
5、The delivery rate of an axial-piston h
The delivery rate of an axial-piston hydraulic pump is controlled by varying the position of the （）.Asliding blockBpintleCreaction ringDtilting box or swash plate
6、In a fixed displacement axial piston h
In a fixed displacement axial piston hydraulic motor, the speed is varied by（）Aregulating the ratio between torque and speed via the torque l...