Question 184Steam Plants - 1st Asst/Chief70% to pass
Which of the precautions listed should be taken when gagging a boiler safety valve?
AI Explanation
The correct answer is A) Tighten the gag only finger tight to prevent damage to the valve stem, disc or seat.
When gagging a boiler safety valve, it is important to only tighten the gag finger tight to avoid damaging the sensitive internal components of the valve. Overtightening the gag with a wrench, as option B suggests, could deform or jam the valve stem, disc or seat and prevent the safety valve from properly resetting and functioning. Additionally, the gag should not contact the valve stem directly, as option C warns against, as this could also interfere with the valve's operation. Ensuring the valve's moving parts are free to move, as in option D, is also a prudent step before installing the gag.
Related Questions
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