Engine_2014 : Steam Plants - 846/1951
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| The most common cause of abnormal fireside burning of the boiler superheater tubes can "indirectly" be the result of __________. |
| A) combustion gases impinging on the tubes |
| B) fuel droplets striking the hot tubes |
| C) excessive boiler water carryover |
| D) the tubes being subjected to excessive vibration |
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