单项选择题
A.leaky injector B.water in the gas C.too heavy oil D.water in the oil
Which of the following will take place if the clearance...
单项选择题Which of the following will take place if the clearance of the main bearings are excessive?（）
A.bearing knocks B.dropping of pressure of LO C.noises D.all the above
Which of the following will be the function of lubricat...
单项选择题Which of the following will be the function of lubricating oil used in marine engines?（）
A.to remove heat from oil cooled pistons B.to wash away wear detritus C.to neutralize acidic products D.all of the above
Which of the following may take place if the clearance ...
单项选择题Which of the following may take place if the clearance of the main bearings are excessive?（）
