MCQOPTIONS
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| 1. |
Auto-ignition reaction time for petrol engine first decreases with increase in fuel air ratio, reaches a minimum value and then increases with subsequent increase in fuel air ratio. The maximum value occurs in the region of ____________ |
| A. | lean mixture |
| B. | chemically correct mixture |
| C. | rich mixture |
| D. | none of the mentioned |
| Answer» C. rich mixture | |