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IC Engines and Nuclear Power Plants - Data Intensity 3 Multiple Questions and Answers.
| 21. | Which of the following fuel detonates readily ? | ||
| A. | Benzene | ||
| B. | Iso-octane | ||
| C. | Normal heptane | ||
| D. | Alcohol | ||
| 22. | Spark plugs in automobiles generally have a gap between | ||
| A. | 0.3 to 0.7 mm | ||
| B. | 0.2 to 0.8 mm | ||
| C. | 0.4 to 0.9 mm | ||
| D. | 0.6 to 1.8 mm | ||
| 23. | In a petrol engine, if diesel is used, then the engine will | ||
| A. | not run | ||
| B. | run more efficiently | ||
| C. | run at high speed | ||
| D. | explode | ||
| 24. | Number of working strokes per min. for a four stroke cycle engine are _____ the speed of the engine in r.p.m. | ||
| A. | equal to | ||
| B. | one-half | ||
| C. | twice | ||
| D. | four-times | ||
| 25. | The air standard efficiency of an I.C. engine depends on | ||
| A. | fuel used | ||
| B. | speed of engine | ||
| C. | compression ratio | ||
| D. | none of these | ||
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