Engine : Steam Plants - 686/811
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| Coast Guard Regulations (46 CFR) concerning superheater safety valves require that the valve __________. |
| A) is not set at a pressure less than the feed pump relief valve |
| B) can only be operated by a pilot valve |
| C) nominal size is not less than 1.5 inches nor more than 4 inches |
| D) be set at a pressure higher than the drum safety valves |
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