11. If the compression ratio of an engine working on Otto cycle is increased from 5 to 7, the percentage increase in efficiency will be
12. Supercharging is essential in
13. Which of the following statement is correct regarding petrol engines?
14. The firing order in an I.C. engine depends upon
15. The colour of exhaust from diesel engine is generally
16. A heat engine utilizes the
17. In the opposed piston diesel engine, the combustion chamber is located
18. A mixture containing 65% of iso-octane and 35% of normal heptane will have
19. If the speed of the engine is increased, the indicated power will
20. The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called
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