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| Q. |
Auto-ignition temperature is |
| A. | maximum temperature to which oil is heated in order to give off inflammable vapour in sufficient quantity to ignite momentarily when bought in contact with a flame |
| B. | that at which it catches fire without external aid |
| C. | indicated by 90% distillation temperature |
| D. | none of the mentioned |
| Answer» B. that at which it catches fire without external aid | |
| Explanation: auto-ignition temperature is defined as that temperature at which it catches fire without external aid while volatility of diesel fuel is indicated by 90% distillation temperature. | |
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