Question 314General Subjects - QMED70% to pass
Which of the materials listed is used as the dynamic seal material on mechanical seals installed on most centrifugal pumps used in water service?
AI Explanation
The correct answer is C) Carbon.
Carbon is the most commonly used dynamic seal material for mechanical seals installed on centrifugal pumps used in water service. Carbon is an ideal material for this application due to its excellent wear resistance, low friction, and compatibility with water. The porous structure of carbon also helps with lubrication and heat dissipation, making it well-suited for the dynamic sealing environment of a centrifugal pump.
The other options are not the typical dynamic seal materials used in this application. Copper and bronze are more commonly used for static seals or bearings, while copper and carbon would not provide the necessary wear resistance and lubrication properties required for a dynamic mechanical seal in a water pump.
Related Questions
#312 Mechanical shaft seals used on water service pumps require lubrication of the seal faces to minimize deposits of foreign matter on those surfaces. Which of the following pressures and lubricants are required? #313 Which of the listed types of seals is used effectively for pumps handling toxic or highly flammable liquids that cannot be permitted to escape into the atmosphere? #315 When installing a mechanical shaft seal on a pump, it is important to _______________.#316 A distinguishing feature of an eductor, when compared to other pumps, is the _______________.#317 The three basic parts of any eductor are the nozzle, the suction chamber, and the _______________.