Some pumps use packing as sealing glandThe gland should be ().
- Aslack enough to allow slight leakage of fluid
- Bslightly clocked
- Cbrought up tight so as not to allow any leakage
- Dfitted with a relief valve
Some pumps use packing as sealing glandThe gland should be ().
1、Sealing in pump shaft is achieved by m
Sealing in pump shaft is achieved by means of the ( ).AgasketBpackingCo-ring
2、Some lights used as aids to marine nav
Some lights used as aids to marine navigation have a red sector to indicate a danger area. The limits of a colored sector of a light are l...
3、()uses one or two high pressure pumps
()uses one or two high pressure pumps for all the cylinders with one more standby, while()have a separate high-pressure pump for each cylin...
4、The ()pump is usually used as the lubr
The ()pump is usually used as the lubricating oil pump.AturbineBscrewCvaneejectorDcentrifugal
5、The ()pump is usually used as the bilg
The ()pump is usually used as the bilge feed pump to an oily water separator.AturbineBscrewCvaneDejector
6、Some of the energy fed into the pump w
Some of the energy fed into the pump will be dissipated as () due to mechanical inefficiencies, the remainder will be converted into pressure rise and fluid velocity.Ahydraulic headBstatic headCheat energyDsteam