MI Boiler Operator Practice Questions - Michigan Boiler Operator License Exam

What is the correct method for performing a bottom blowdown?

Open the blowdown valve quickly and fully for a short duration (5-10 seconds), then close it completely Open the valve slightly and leave it cracked open for hours Open the valve only when the boiler is cold and depressurized Open and close the valve rapidly multiple times in succession

Correct Answer:

Open the blowdown valve quickly and fully for a short duration (5-10 seconds), then close it completely

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