Question 257General Subjects - Assistant Engineer
70% to passReferring to the illustrated huddling-chamber safety valve, what statement is true concerning the adjustment of blow down? Illustration SG-0018
ABlow down is adjusted by rotating the release nut
B.
CBlow down is adjusted by rotating the adjusting ring
D.
AI Explanation
The correct answer is C) Blow down is adjusted by rotating the adjusting ring. The blow down on the illustrated huddling-chamber safety valve is adjusted by rotating the adjusting ring, not the release nut. This allows the operator to fine-tune the pressure at which the valve will open and release pressure, which is an important safety feature for the proper operation of the valve. The other answer choices are incorrect because the release nut is not used to adjust the blow down, and the question does not provide enough information to determine what the other options might refer to.
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