Engine_2014 : Steam Plants - 896/1951
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| The purpose of the cam-actuated steam valve used in a boiler soot blower system, is to __________ . |
| A) rotate the element through a predetermined blowing arc |
| B) automatically blow the elements in the proper sequence |
| C) automatically secure steam to the blower head any time the element stops turning |
| D) prevent steam from entering the soot blower when the element holes are directed toward the refractory |
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