单项选择题
A.two to four months B.four to six months C.six to eight months
Fuel injection uses the jet pump system and a Woodward ...
单项选择题Fuel injection uses the jet pump system and a Woodward type hydraulic （） is used to control engine speed.
A.controller B.governor C.instrument D.apparatus
Fuel injected into a diesel engines cylinder is ignited...
单项选择题Fuel injected into a diesel engines cylinder is ignited by （）.
A.the heat compressed fuel/air mixture in the cylinder B.the fuel igniter C.the fuel injector D.the fuel pump
Fuel has been injected but ignition fails The possible ...
单项选择题Fuel has been injected but ignition fails The possible cause may be （）.
A.leaky exhaust valve B.increased scavenging air temperature C.engine cylinders not scavenged sufficiently D.water in the fuel oil
