Diesel engines are considered safer than gasoline engines because().
A、they are more heavily built
B、the fuel used is less volatile
C、they can be easily reversed
D、they operate at a lower speed
A、they are more heavily built
B、the fuel used is less volatile
C、they can be easily reversed
D、they operate at a lower 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、Slow speed diesel engines B、Medium-speed diesel engines C、Steam engines D、Gasoline engines
A、space limitations prevent separately run pipes B、the engines are small auxiliary units C、they are arranged to prevent gas backflow to each engine D、a waste heat boiler is installed
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、steam plants, electric motors and compressed air B、diesel engine, hydraulic machinery and compressed air C、steam plants, electric motors and hydraulic machinery D、diesel engines, steam plants and hydraulic machinery
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、those with diesel engines B、all those with gasoline engines C、those with large engines only D、None of the above
A、improper adjustment B、contaminated fuel C、kinked fuel lines D、excessive engine vibration