A、operated manually once an hour
B、operated until the engine has started
C、placed into operation only at maximum load
D、adjustable to meet lubrication requirements
更多“Mechanical lubricators for diesel engine cylinders are usually small reciprocating pumps which are （）.”相关的问题
A、mechanical energy to kinetic energy to potential energy B、mechanical energy to potential energy to kinetic energy C、potential energy to mechanical energy to kinetic energy D、kinetic energy to mechanical energy to potential energy
A、A.temperature of the intake air B、B.friction within the engine C、C.mechanical condition of the supercharger D、D.mechanical condition of the turbocharger
A、Electrical loading B、Mechanical distribution C、Compressibility of air D、Mechanical friction
A、testing for the mechanical load and the thermal load B、inspecting thermal and mechanical condition of the engine C、inspecting each system and exhaust temperature D、testing for compress pressure and explosion pressure
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