Certified Maintenance & Reliability Professional (CMRP) Practice Exam

For critical assets, what is the advised frequency for conducting time-based PM?

1. More than 10% of the time frequency

2. 10% of the time frequency

3. Less than 10% of the time frequency

4. Exactly 10% of the time frequency

The correct answer is: Less than 10% of the time frequency

For critical assets, it is advised to conduct time-based preventive maintenance (PM) at a frequency of less than 10% of the time frequency. This approach aligns with the idea that critical assets, which have a significant impact on operational performance, should be maintained in such a way that maintenance activities are carefully scaled according to the actual condition and performance of the equipment rather than adhering strictly to a time-based schedule. Limited and strategically timed preventive maintenance allows organizations to focus their resources more effectively, reduce unnecessary downtime, and optimize asset performance. By conducting PM activities less frequently than 10% of the total operating time, organizations can concentrate on actual performance indicators and trending data, leading to more effective maintenance practices that address the specific needs and conditions of critical assets. This frequency helps to balance the costs and benefits of maintenance efforts, ensuring that resources are not wasted on unnecessary activities, while also allowing flexibility to respond to changing conditions or unforeseen issues that may arise with critical equipment.