单项选择题
A.Sensitivity B.Power C.Speed droop D.Compensation
A faulty thermostatic bypass valve, in a diesel engine ...
单项选择题A faulty thermostatic bypass valve, in a diesel engine cooling system, can result in （）
A.excessive time required for warming-up B.excessive freshwater corrosion C.scale formation on the saltwater side D.saltwater mixing with the freshwater
Movement of the pump control rack in a fuel injection s...
单项选择题Movement of the pump control rack in a fuel injection system using individual plunger-type pumps （）
A.changes the position of the fuel inlet ports B.changes the length of the pump stroke C.varies the quantity of fuel delivered D.varies the compression of the delivery valve spring
During extremely cold weather, while starting an engine...
单项选择题During extremely cold weather, while starting an engine, it turns too slowly and fails to startThis problem is most likely the result of （）
A.high fuel oil viscosity B.low fuel oil temperature C.high lube oil viscosity D.energized glow plugs
