单项选择题
A.speed settings B.speed droops C.speed drops D.speed changes
Governors are equipped with motors for synchronizing, l...
单项选择题Governors are equipped with motors for synchronizing, load sharing and frequency control（）
A.speed setting B.load setting C.speed changing D.load changing
In engines with system, the lubricating oil can be adde...
单项选择题In engines with system, the lubricating oil can be added to the engine through the filling hole in the crankcase cover, by using a hand oil can, or through the separator pipe（）
A.lubricating oil B.dry sump C.circulated tank D.wet sump
Main engines as well as auxiliary engines operating on ...
单项选择题Main engines as well as auxiliary engines operating on heavy fuel should have continuous on the lubricating oil, either according to the bypass or batch principles（）
A.filtering B.centrifuging C.depositing D.operating
