The water level in a steaming auxiliary boiler will always （）<br>A:rise when the steam pressure is increased<br>B:remain constant as long as the feed pump operates<br>C:fall when the steam pressure is decreased<br>D:vary as the steam demand changes

The water level in a steaming auxiliary boiler will always （）
A:rise when the steam pressure is increased
B:remain constant as long as the feed pump operates
C:fall when the steam pressure is decreased
D:vary as the steam demand changes

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