Question 400General Subjects - Assistant Engineer
70% to passWhich of the lubricants listed is the best to use on a reciprocating pump rod?
AOil mixed with kerosene.
BGraphite and oil.
CEngine oil.
DVegetable oil.
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, providing a smooth surface for the rod to slide against, while the oil helps to reduce friction and wear. This combination is preferred over other options like oil mixed with kerosene, engine oil, or vegetable oil, as it is specifically designed for the high-friction environment of a reciprocating pump. The other options are less suitable - oil mixed with kerosene may not provide adequate lubrication, engine oil may not be compatible with the pump materials, and vegetable oil may not have the necessary lubricating properties for this application.
Related Questions
Q366:Which of the devices listed is used to maintain a snug interface between the rot... Q582:Referring to the illustrated steam plant sea water cooling system drawing, what ... Q154:Which of the following speed control devices is used strictly as a safety device... Q323:When an electricity generating plant features shaft-driven generators, what type... Q636:The lathe tools shown as figure "M" in the illustration are commonly known as __...
Ready to test your knowledge?
Take a General Subjects - Assistant Engineer Practice ExamOfficial Resources