Movement of the pump control rack in a fuel injection system using individual plunger-type pumps （）
1、In a jerk pump, the amount of fuel tha
In a jerk pump, the amount of fuel that will be forced through the spray nozzle on each upward stroke of the plunger depends on （）Athe pu...
2、The advantage of a centrifugal pump as
The advantage of a centrifugal pump as compared with a reciprocating pump is that （）.Adischarge is continuousBit has no internal valvesCupon accidental closing of discharge valve, excessive pressure will not build upDall of the above are true
3、The angular movement of a vessel about
The angular movement of a vessel about a horizontal line drawn from its bow to its stern is （）.ApitchingBrollingCheavingDswaying
4、The vertical movement of a vessel in t
The vertical movement of a vessel in the water is called（）.ApitchBswayCheaveDroll
5、Movement of liquid in a tank when a ve
Movement of liquid in a tank when a vessel inclines causes an increase in（）.Arighting armBmetacentric heightCheight of the uncorrected KGDnatural rolling period
6、The capacity of a centrifugal pump can
The capacity of a centrifugal pump can be increased by the installation of a larger diameter impeller Another means of increasing the pump cap...