If the engine does start on air， but combustion does not immediately begin， the cause may not be （）.
举一反三
- When does the ignition system supply the electrical spark to cause ignition of the fuel/air mixture in the combustion chamber? ( ) A: In flight B: At idle C: All of above D: At start
- As for a diesel engine， lack of combustion air may be due to （）.
- Which cause of the following can lead to the engine not to start on air?（）
- Which of the following may lead to the engine NOT to start on air?（）
- Which of the following may cause that an engine doesnt run on starting air?（）