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Engine : Steam Plants - 658/811
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While trying to light off a burner on a semi-automated boiler, you note that the fuel oil solenoid valve at the burner will not stay open. Which of the following conditions could cause this problem?
A) The flame scanner is adjusted for excessive time delay in the ignition trial circuit.
B) The forced draft air supply has failed.
C) The fuel oil pressure at that burner is too high.
D) The solenoid coil is energized causing the valve to remain closed.
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