Question 273General Subjects - QMED
70% to passWhich of the lubricants listed is the best to use on a reciprocating pump rod?
AVegetable oil.
BGraphite and oil.
CEngine oil.
DOil mixed with kerosene.
AI Explanation
The correct answer is B) Graphite and oil. Graphite and oil is the best lubricant to use on a reciprocating pump rod. Graphite acts as a dry lubricant that can withstand high temperatures and pressures, making it ideal for the sliding motion of a reciprocating pump. The addition of oil helps further reduce friction and wear on the pump components. The other options, such as vegetable oil, engine oil, or oil mixed with kerosene, would not provide the same level of lubrication and protection for a reciprocating pump.
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