All diesel engines are classified as().
A、four cycle
B、compression ignition
C、vacuum ignition
D、external combustion
A、four cycle
B、compression ignition
C、vacuum ignition
D、external combustion
A、fluctuates with the engine speed to some extent, independent of the engine speed B、keeps constant at all engine speed, dependent on the engine speed to some extent C、keeps constant at all engine speed, independent of the engine speed D、is decided by the engine speed, constant at all engine speed
A、Diesel engines have more advantages in comparison with gasoline engines B、Diesel engines have more advantages in comparison to gasoline engines C、Gasoline engines have more advantages in comparison with diesel engines D、Gasoline engines have more advantages in comparison to diesel engines
A、most critical in a four-stroke cycle diesel engine B、most critical in a two-stroke/cycle diesel engine C、most critical in a four-stroke/cycle diesel engine if it is turbocharged D、of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine
A、those with diesel engines B、all those with gasoline engines C、those with large engines only D、None of the above
A、A common rail engine;conventional engines B、A conventional engine;common rail engines C、A marine diesel engine;most other engines D、A two-stroke engine;four-stroke engines
A、the engine to run after the fuel has been secured B、the engine to over-speed C、a fire D、all of the above
A、bearing pressure in a four-stroke\cycle acting single diesel engine is continually reversed B、bearing pressure in a two-stroke\cycle single acting diesel engine is continually reversed C、the maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engine D、two-stoke/cycle diesel engines require more complicated lubrication piping
A、inboard diesel engine B、outboard diesel engine C、outboard gasoline engine D、inboard gasoline engine
A、engine power losses B、smoking due to unburned fuel C、high exhaust temperature readings D、all of the above
A、The direction of pressure on the journal in four-stroke engine is continuously B、positive feed lubricators are installed on all bearings of four-stroke engine, whereas as a splash feed system is used on tow-stroke engine C、four-stroke engines usually utilize a heavier grade of oil than tow-stroke engines D、Low-stroke engines usually consume less lube oil than four-stroke engines