A （） pump is that where the volume of the pump chamber is alternately increased to draw the liquid in and then decreased to force the liquid out.
- Ainjector
- Bpositive displacement
- Ccentrifugal
- Dcentripetal
问题
A （） pump is that where the volume of
参考解析：
分类：船舶辅助机械题库
相关推荐
-
1、（）is the volume for loading goods of t
（）is the volume for loading goods of the vehicle.A Vehicle tonnageB Vehicle sizeC Vehicle capacityD Available vehicle capacity
-
2、The output volume of a positive fixed
The output volume of a positive fixed displacement pump can be changed only by （）.Achanging the angle of the tilting plateBchanging the speed of the pumpCmoving the slide block and rotorDmoving the shaft trunnion block
-
3、The pressure head of a pump is given i
The pressure head of a pump is given in the unit of （）.AkgBMPaCmeter fluid columnDNone of the above is true
-
4、The figure that the volume of air at B
The figure that the volume of air at BDC is divided by the volume of air at TDC is termed as（）.Aignition ratioBpower ratioCcompression ratioDinjection ratio
-
5、A pump is defined as device that（）
A pump is defined as device that（）Aproduces pressureBimparts energy to a fluid to move it from level ‘A’ to level ‘B’Ccreates a vacuum to move a liquid in all installationDis to develop a pressure differential
-
6、All of the following logical volumes a
All of the following logical volumes are associated with a standard AIX journaled file system (JFS) EXCEPT:（）A/dev/hd2B/dev/hd4C/dev/hd6D/dev/hd9var