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

When considering the signs that indicate an electrical motor may require maintenance, unusual noises, overheating, and decreased performance are critical indicators that should not be ignored.

Unusual noises, such as grinding or rattling, can point to issues with bearings, misalignment, or other mechanical failures. These sounds suggest that components within the motor are not functioning as they should, which could lead to more severe damage if left unaddressed.

Overheating is another significant sign. An increase in temperature can indicate that the motor is working harder than it should due to mechanical resistance, lubrication problems, or electrical issues, potentially leading to burnout.

Decreased performance, characterized by a drop in the motor's speed or inability to maintain its load, could be the result of worn-out parts, electrical imbalances, or even issues with the supply voltage. This decline in performance is a strong reminder that the motor is not operating efficiently and requires immediate attention to prevent failure.

In contrast, enhanced energy efficiency and improved speed would imply that the motor is operating well, indicating that no maintenance is needed. Therefore, these conditions do not signal a need for repair or servicing. Recognizing the signs of distress like unusual noises, overheating, and decreased performance is essential for maintaining the