Maintenance Technician Practice Test 2025 - Free Maintenance Technician Practice Questions and Prep Guide

Question: 1 / 400

What is the purpose of a bearing in machinery?

To increase speed of operation

To reduce friction between moving parts

The purpose of a bearing in machinery is to reduce friction between moving parts. Bearings are specifically designed to allow for smooth rotation or linear motion while minimizing the wear and tear that would occur if surfaces made direct contact. By providing a low-friction interface, bearings help to achieve greater efficiency in machine operations, decrease energy loss, and extend the life of components by reducing heat generated from friction. Consequently, this functionality is critical in applications ranging from simple motors to complex machinery, ensuring reliable performance and durability.

The other options do not accurately capture the primary function of bearings. Speed increase is typically achieved through different means, supporting electrical components is not a direct role of bearings, and providing cooling is usually the function of a different system within the machinery.

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To support electrical components

To provide cooling to the system

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