NCCER Millwright Practice Exam

Question: 1 / 400

Lubrication serves to reduce what type of interaction?

Friction

Lubrication primarily serves to reduce friction, which is the resistance to motion that occurs when two surfaces come into contact. In mechanical systems, friction can lead to excessive wear and tear on components, generating heat and potentially causing failures. By providing a lubricating film between moving parts, lubrication minimizes direct contact, thus reducing friction and promoting smoother operation. This reduction in friction not only enhances efficiency by requiring less energy to move parts but also prolongs the lifespan of machinery by decreasing the rate of wear. Each lubrication method—be it oil, grease, or another substance—plays a crucial role in ensuring that moving components operate effectively while minimizing damage and energy loss associated with friction.

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Corrosion

Heat transfer

Vibration

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