Engine : Steam Plants - 651/811
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| As found in a basic pneumatic automatic combustion control system, the function of a standardizing relay is to __________. |
| A) introduce a control for maintaining constant superheated steam temperature regardless of boiler load |
| B) introduce a control for maintaining constant steam pressure regardless of boiler load |
| C) provide a backup means for manual control of the system |
| D) control the boiler drum water level within acceptable limits regardless of the load |
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