For one or two types of engine， the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through the （）.
举一反三
- At bottom dead center, the centerline of the connecting rod usually coincides with the（） A: angularity of the piston motion B: inertia moment from the piston C: centerline of the cylinder D: centerline of the king pi
- Engine block group includes ______, crankcase, cylinder head, cylinder gasket. A: cylinder block B: proprietor C: disciple D: barbarian
- We can use two ways to circulate oil through An engine:pressure and splash.
- Which statement about the Lubrication oil is fault? A: The oil absorbs and carries the heat away from the engine components. B: The oil forms a good seal between piston rings and cylinder walls. C: The oil forms a film on the metal surface and prevents a metal to metal contact. D: The oil washes off dirt away from the engine parts through its chemistry.
- 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 sum