The needle valve will open when the fu

1、If the compensating needle valve of a

If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will （）Ahave a larger than normal dead b...

2、When the starting air valve closes on

When the starting air valve closes on one cylinder, another starting air valve has （） opened on another cylinder whose piston has just commenced its downward stroke.AjustBnearlyCmerelyDalready

3、The needle valve in the injector （） at

The needle valve in the injector （） at a pre-set pressure which ensures that the fuel will atomize once it enters the cylinder.Awill liftBwill be liftedCwill closeDwill be closed

4、If the needle valve in a fuel injectio

If the needle valve in a fuel injection nozzle sticks open （）.Ano fuel will be delivered through the nozzleBthe nozzle will overheat and crackCtime of injection will changeDfuel will leak into the drain line

5、The exhaust valve opens before bottom

The exhaust valve opens before bottom dead center in a four stroke engine to（）Ⅰ.allow for blow downⅡ.Reduce pumping lossesAⅠ onlyBⅡ onlyCboth Ⅰ and ⅡDneither Ⅰ nor Ⅱ

6、The needle valve in a fuel valve will

The needle valve in a fuel valve will （） when the fuel pressure action on the needle valve tapered face exerts a force lower than that of the spring compression.Abe jammedBbe openedCbe seatedDbe broke