Question 275General Subjects - QMED
70% to passTo safely remove the piston rod packing from the steam end of a reciprocating pump, you should _______________.
Ause a packing hook
Bopen the steam chest and pry the packing loose with a scraper
Copen the throttle valve and 'blow' the old packing out
Ddo nothing, as this type of pump utilizes O-rings in lieu of packing
AI Explanation
The correct answer is A) use a packing hook. To safely remove the piston rod packing from the steam end of a reciprocating pump, you should use a packing hook. This specialized tool is designed to grip and extract the old packing without damaging the piston rod or packing gland. Attempting to pry the packing loose with a scraper (option B) or blowing it out with the throttle valve (option C) could cause damage to the pump components. Option D is incorrect, as reciprocating pumps typically use packing, not O-rings, to seal the piston rod.
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