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Fuels and Combustion-Data Intensity 3 Multiple Questions and Answers.
| 1. | Optimum preheating temperature for pitch creosote mixture (PCM) which is also termed as C.T.F-200, before atomisation through burners is___? | ||
| A. | 200 °F | ||
| B. | 200 °C | ||
| C. | 200 °K | ||
| D. | 200 °R | ||
| 2. | The average molecular weight of a flue gas having the composition by volume as CO2 = 25%, O2 = 25%, N2 = 50% will be__? | ||
| A. | 27.6 | ||
| B. | 23 | ||
| C. | 47.3 | ||
| D. | 42.9 | ||
| 3. | The hottest part of the flame lies in its ____ zone? | ||
| A. | Non-luminous | ||
| B. | Luminous | ||
| C. | Yellow | ||
| D. | Unburnt gases | ||
| 4. | Highly caking coals___? | ||
| A. | Produce weak coke | ||
| B. | Produce strong coke | ||
| C. | May damage the coke oven walls during carbonisation | ||
| D. | Both B. and C. | ||
| 5. | L.D. converter gas (produced in steel plant) comprises mainly of __? | ||
| A. | CO (upto 65%) & CO2 | ||
| B. | CO2 & H2 | ||
| C. | CO & O2 | ||
| D. | CO2 & O2 | ||
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