单项选择题
A.improper adjustments B.contaminated fuel C.coated fuel lines D.excessive vibration
The most crucial time for any bearing with regards to l...
单项选择题The most crucial time for any bearing with regards to lubrication is （）
A.during low loads B.after proper oil viscosity is reached C.during starting D.after cleaning filters
If a main propulsion diesel engine hunts excessively at...
单项选择题If a main propulsion diesel engine hunts excessively at idle speed, you should （）
A.adjusts the idle speed control B.drain and flushes the governor and replace the oil C.adjusts the compensating needle valve
The amount of fuel delivered for each cycle must be in ...
单项选择题The amount of fuel delivered for each cycle must be in accordance with the engine load, and the same quantity of fuel must be delivered to each cylinder for each power stroke at that load.Which of the following statements describes this requirement?（）
A.Proper timing B.Accurate metering C.Suitable injection rate D.Suitable atomization rate
