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| Q. |
Which of the following is not a result of the excess of impurity in boiler-feed? |
| A. | scale and sludge formation |
| B. | decomposition |
| C. | corrosion, priming and foaming |
| D. | caustic embrittlement |
| Answer» B. decomposition | |
| Explanation: excess of impurities in boiler- feed results in scale and sludge formation, corrosion, priming, foaming and caustic embrittlement. it does not contribute to the decomposition process. | |
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