单项选择题
A.cam action B.spring force C.fuel oil pressure D.firing pressure
In a closed cooling water system, which of the problems...
单项选择题In a closed cooling water system, which of the problems can cause the water pressure to fluctuate?（）
A.An open vent in the cooling system B.A fouled sea chest C.A restricted water passage in the engine D.Air entrained in the cooling water
Proper dispersion of fuel in a diesel engine cylinder i...
单项选择题Proper dispersion of fuel in a diesel engine cylinder is dependent upon the （）
A.injection pressure B.shape of combustion space C.turbulence in combustion space D.all of the above
A change in engine speed is required before a governor ...
单项选择题A change in engine speed is required before a governor is able to make a corrective movement of fuel rackThis aspect of governing is commonly expressed as a percent and is known as （）
A.governor sensitivity B.governor promptness C.speed droop D.isochronous governing
