Which of the following firing order may be used for an 6 cylinder engine?（）
举一反三
- The firing order for a four-cylinder engine is 1-3-4-2or1-2-4-3.
- 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?（）
- Which of the following characteristics may be used to describe Nora?
- Which of the following methods is normally used to lubricate bearings in a small high-speed diesel engine?（）