21. A gas engine has a swept volume of 300 cm3 and clearance volume of 25 cm3. Its volumetric efficiency is 0.88 and mechanical efficiency is 0.90. The volume of the mixture taken in per stroke is
22. The pressure at the end of compression, in diesel engines, is approximately
23. The pressure at the end of compression, in petrol engines, is approximately
24. Air fuel ratio for idling speed of a petrol engine is approximately
25. The specific fuel consumption per BH hour for a petrol engine is approximately
26. The specific fuel consumption per BHP hour for diesel engine is approximately
27. The maximum propulsive efficiency of a turbojet engine is at a speed of
28. The method of determination of indicated power of a multi cylinder spark ignition engine is by the use of
29. The air-fuel ratio of the petrol engine is controlled by
30. The air-fuel ratio in petrol engines is controlled by
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