The effective pump stroke of an individual port-and-helix fuel injection pump is determined by the ()
- Afuel delivery pressure
- Bpump plunger diameter
- Cplunger control rack position
- Dtotal pump stroke
The effective pump stroke of an individual port-and-helix fuel injection pump is determined by the ()
1、An increase in the fuel injection pump
An increase in the fuel injection pump discharge pressure can be caused by a/an _______.Aleaking delivery valveBexcessive bearing end playCplugged injector spray holeDincreased plunger stroke
2、For an ordinary four-stroke engine the
For an ordinary four-stroke engine the exhaust valves open ().Aafter TDCBbefore TDCCafter BDCDbefore BDC
3、The effective stroke of a constant-str
The effective stroke of a constant-stroke, individual, fuel injection pump is varied by the ().Acontrol rackBdelivery valveCgovernor speedDplunger crossbar
4、An advantage of a helical gear pump ov
An advantage of a helical gear pump over a simple gear pump is that the helical gear pump is capable of ().Amaintaining a steadier speedBde...
5、The two strokes of a two-stroke/cycle
The two strokes of a two-stroke/cycle diesel engine are ()Apower and intakeBintake and exhaustCexhaust and compressionDcompression and power
6、If one hydraulic pump of an electro-hy
If one hydraulic pump of an electro-hydraulic steering unit falls, the vessels steering can be initially and best maintained by using the ().Atrick wheelBaccumulatorCstandby pumpDtelemotor