IC Engines Practice Set-2

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1. In a naturally aspirated diesel engine, the air is supplied by
2. Number of working strokes per min. for a two stroke cycle engine is _________ the speed of the engine in r.p.m.
3. The minimum cranking speed in case of petrol engine is about
4. The inlet valve of a four stroke cycle internal combustion engine remains open for
5. The spark ignition engines are governed by
6. The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called
7. In petrol engines, advancing of the spark timing will _________ the knocking tendency.
8. Diesel engine can work on very lean air fuel ratio of the order of 30: 1. A petrol engine can also work on such a lean ratio provided
9. Which of the following is not an intern’s combustion engine?
10. The maximum propulsive efficiency of a turbojet engine is at a speed of

 

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