Fuel is delivered into the combustion space by _____.A.a cooling systemB.a lubricating sys

The amount of fuel delivered by a unit injector is controlled by the _____.

A.camshaft

B.main spring

C.rack position

D.nozzle orifice size

d the same quantity of fuel must be delivered to each cylinder for each power stroke at that loadWhich of the following statements describes this requirement？

A.Proper timing

B.Accurate metering

C.Suitable injection rate

D.Suitable atomization rate

ins uncovered all of the time, which of the listed operations will occur？

A.No fuel will be delivered

B.The maximum effective stroke will be attained

C.The fuel delivered to the cylinder will be excessive

D.The injection nozzle will overheat and carbonize

A.assist in a quick cutoff of fuel injection

B.allow oil backflow from the injector to the helix

C.reduce fuel oil pressure between injection strokes

D.meter the quantity of fuel delivered

sticks in the open position？

A.Fuel injection timing will change

B.Nozzle operation will be unaffected

C.Fuel will leak into the drain line

D.Fuel will not be delivered

On a diesel engine, fuel is delivered into the combustion space by _____.

A.a cooling system

B.a lubrication oil system

C.an electric system

D.an injection system

A．cooling system

B．a lubricating system

C．an electric system

D．an injection system

ctor nozzle at very high pressure.

A.being compressed

B.to be pumped up

C.is pressurized

D.are built up

___.

A.varying the pump discharge pressure

B.varying the pump return pressure

C.rotation of the pump plunger

D.rotation of the pump barrel