Combustion knock occurring in a diesel engine can be caused by _____. A.low coolant temperature B.insufficient fuel C.high ambient temperature D.carbon buildup on the injector tips
举一反三
- What’s the main purpose of the servo fuel heater on CFM56-3 engine? ( ) A: To decrease the supply oil temperature B: To increase the servo fuel temperature C: To decrease the scavenge oil temperature D: To increase the combustion fuel temperature
- The aphotic zone (bottom of the ocean) will have ____ and ____ while the photic zone (surface of the ocean) will have ____ and ____. A: low temperature, low salinity; high temperature, high salinity B: low temperature, high salinity; high temperature, low salinity C: high temperature, high salinity; low temperature, low salinity D: high temperature, low salinity; low temperature, high salinity E: both have equal temperature and salinity
- 3.Coolant temperature: means the coolant temperature is too high or the coolant level is too low．
- Dirt in the fuel oil system of a diesel engine can cause （）. A: clogged filters B: poor combustion C: overloading of the diesel D: shock of fuel line
- The fuel oil system for a diesel engine can be considered in two<br/>parts---- the fuel supply and the ()systems A: fuel purification B: fuel combustion C: fuel treatment D: fuel injection