CMRP Preventive and Predictive Maintenance 2

Question 1

What is the primary difference between preventive and predictive maintenance?

Accepted Answer

Preventive follows fixed schedules; predictive uses condition monitoring data

Answer

Preventive maintenance performs tasks at predetermined intervals; predictive maintenance monitors actual condition.

Question 2

What role does motor current analysis play in predictive maintenance?

Accepted Answer

Detects electrical and mechanical faults by analyzing current waveform variations

Answer

Motor current signature analysis detects both electrical defects and mechanical problems by analyzing current patterns.

Question 3

What is the purpose of preventive maintenance optimization (PMO)?

Accepted Answer

To evaluate existing PM tasks for relevance, effectiveness, and interval optimization

Answer

PMO reviews assess each PM task to determine if it is valid, effective, performed at the right interval, and cost-justified.

Question 4

What is the significance of the P-F curve in predictive maintenance design?

Accepted Answer

The progression from detectable potential failure to functional failure

Answer

The P-F curve shows how condition degrades from first detectable change to functional failure.

Question 5

What is the role of a CMMS in supporting PM and PdM programs?

Accepted Answer

Automates PM scheduling, stores PdM data, manages work orders, and provides analytics

Answer

CMMS is essential for managing PM schedules, tracking PdM data, generating work orders, and maintaining equipment history.

CMRP - Certified Maintenance and Reliability Professional Practice Test