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| Q. |
Which are the major types of boilers that are operated in world today? |
| A. | natural circulation boiler |
| B. | forced circulation boiler |
| C. | fire tube boiler |
| D. | once through boiler |
| Answer» D. once through boiler | |
| Explanation: the once through boiler has higher load response characteristics due to the fact that it does not have drum and has much lower water inventory. many times load change response is dictated by the firing system and its controls rather than the boiler, per-say. | |
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