Question 399General Subjects - Assistant Engineer
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 throttle valve and 'blow' the old packing out
Copen the steam chest and pry the packing loose with a scraper
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, a packing hook should be used. This is the proper and safest method, as it allows the packing to be carefully extracted without damaging the piston rod or other pump components. The other options are incorrect - B) would be unsafe as it could cause the packing to be blown out forcefully, C) would require disassembly of the steam chest which is unnecessary, and D) is incorrect as reciprocating pumps typically use piston rod packing, not O-rings.
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