Maintenance Technician Practice Test 2026 - Free Maintenance Technician Practice Questions and Prep Guide

Feeler gauges are specifically designed to measure the width of gaps or spaces between components. They consist of a set of thin, flat pieces of metal or plastic, each with a known thickness, allowing technicians to determine the size of a gap by inserting the appropriate gauge. This measurement is vital in various mechanical and engineering applications, such as measuring the clearance between engine components or ensuring that parts fit together correctly. The capability to measure gaps with precision is crucial for maintaining tolerances in machinery and ensuring optimal performance.

The other options, while related to measurement in different contexts, do not align with the primary function of feeler gauges. Pressure measurement pertains to systems like hydraulics or pneumatics, temperature measurement involves thermometers or thermal sensors, and electrical resistance is evaluated using devices such as ohmmeters.