CMRT - Certified Maintenance and Reliability Technician Predictive Maintenance Techniques Questions and Answers

Question 1

A technician notices a high-frequency sound near a compressed air fitting that is not audible to the human ear without special equipment.
Which predictive maintenance technique is most appropriate for investigating this potential issue?

Accepted Answer

Ultrasonic Testing

Answer

Vibration Analysis

Answer

Infrared Thermography

Answer

Oil Analysis

Question 2

During a routine inspection of a critical gearbox, a maintenance technician collects a lubricant sample. Analysis of the sample reveals a significant increase in ferrous metal particles. This finding is an early indicator of what type of potential failure?

Accepted Answer

Internal component wear

Answer

Overheating due to electrical imbalance

Answer

Seal degradation leading to contamination

Answer

Incorrect lubricant viscosity

Question 3

A certified maintenance technician is tasked with inspecting a bank of electrical cabinets for potential issues without de-energizing the equipment. Which of the following predictive maintenance techniques is the safest and most effective for identifying loose connections or overloaded circuits in this scenario?

Accepted Answer

Infrared Thermography

Answer

Motor Circuit Analysis

Answer

Acoustic Monitoring

Answer

Vibration Analysis

Question 4

A newly installed high-speed motor and pump assembly is being monitored. To establish a baseline for future condition monitoring and detect potential issues like imbalance or misalignment, which PdM technique should be performed?

Accepted Answer

Vibration Analysis

Answer

Oil Analysis

Answer

Ultrasonic Testing

Answer

Infrared Thermography

Question 5

Which of the following predictive maintenance techniques is a de-energized test method used to assess the health of a motor's windings, rotor, and electrical connections?

Accepted Answer

Motor Circuit Analysis (MCA)

Answer

Motor Current Signature Analysis (MCSA)

Answer

Infrared Thermography

Answer

Vibration Analysis

Question 6

A technician is developing a predictive maintenance plan for a plant's critical assets. The primary goal is to transition from a time-based maintenance schedule to a condition-based approach. What is the fundamental principle of this transition?

Accepted Answer

Using real-time equipment data to determine when maintenance is actually necessary.

Answer

Performing maintenance only after a failure has occurred to minimize costs.

Answer

Scheduling maintenance at fixed intervals regardless of equipment condition.

Answer

Replacing components based on their average expected lifespan.

A technician notices a high-frequency sound near a compressed air fitting that is not audible to the human ear without special equipment.Which predictive maintenance technique is most appropriate for investigating this potential issue?

A technician notices a high-frequency sound near a compressed air fitting that is not audible to the human ear without special equipment.
Which predictive maintenance technique is most appropriate for investigating this potential issue?