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IC Engines and Nuclear Power Plants - Data Intensity 2 Multiple Questions and Answers.
| 17. | A mixture containing 65% of iso-octane and 35% of normal heptane will have | ||
| A. | cetane number 65 | ||
| B. | octane number 65 | ||
| C. | qetane number 35 | ||
| D. | octane number 35 | ||
| 18. | The maximum propulsive efficiency of a turbo-jet engine is at a speed of | ||
| A. | 1000 km/h | ||
| B. | 2000 km/h | ||
| C. | 2400 km/h | ||
| D. | 3000 km/h | ||
| 19. | In order to mix air and petrol in the required proportion and to supply it to the engine during suction stroke, then __________ is employed. | ||
| A. | fuel pump | ||
| B. | injector | ||
| C. | carburettor | ||
| D. | none of these | ||
| 20. | The advancing of spark timing in spark ignition engines will __________ knocking tendency. | ||
| A. | increase | ||
| B. | reduce | ||
| C. | not effect | ||
| D. | none of above | ||
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