单项选择题
A.Constant pressure B.Pulse C.constant velocity D.Axial flow
Which of the following problems will occur if the needl...
单项选择题Which of the following problems will occur if the needle valve in a fuel injection nozzle 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
A dry-type exhaust muffler clogged with soot, will caus...
单项选择题A dry-type exhaust muffler clogged with soot, will cause（）
A.low exhaust temperature B.loss of engine power C.burned intake valves D.engine racing
An operating turbocharged diesel engine that suddenly l...
单项选择题An operating turbocharged diesel engine that suddenly loses power, is due to a/an（）
A.restricted turbocharger air intake B.oil leak into the turbocharger C.dribbling injector D.low fuel viscosity
