单项选择题
A.effectiveness of water-cooled exhaust elbows
B.distribution of the load between engine cylinders
C.amount of fuel penetration into the engine cylinders
D.indicated horsepower of the engine cylinders
单项选择题 Fuel oil discharged to the diesel engine cylinder is atomized at the （）
单项选择题 Cavitation erosion in the cooling water system of a diesel engine usually occurs at the pump impeller, and on the waterside of the （）
单项选择题 Which of the following factors tends to increase scale formation on the saltwater side of a heat exchanger used in a diesel engine cooling water system?（）