In a unit injector the amount of fuel that will be forced through the spray nozzle on each stroke of the plunger depends on （）
1、The rate of fuel injection in a diesel
The rate of fuel injection in a diesel engine cylinder depends primarily on （）.Athe size of the holes in the fuel nozzleBtiming of the pumpCsupply pressure to the pumpDshape of the combustion chamber
2、A change in the quality of fuel atomiz
A change in the quality of fuel atomization by a diesel engine fuel injector would be caused by a/an （）Aincrease in engine speedBincrease in cylinder turbulenceCleaking needle valveDreduction in cylinder turbulence
3、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...
4、The amount of fuel injected in a parti
The amount of fuel injected in a particular time, or degree, of crankshaft rotation is termed （）.AmeteringBtimingCrate of injectionDrate of distributio
5、The unit of duration of a dash in Mors
The unit of duration of a dash in Morse Code is（）.Aone and one-half times the length of a dotBtwice the length of a dotCthree times the length of a dotDfour times the length of a dot
6、The amount of fuel delivered by a unit
The amount of fuel delivered by a unit injector is controlled by the （）AcamshaftBmain springCrack positionDnozzle orifice size