Question 1
A line operates with Availability 90%, Performance 95%, Quality 99%. The OEE is approximately:
Show answer & explanation
Correct answer: D - About 84.6 percent
10 free, exam-style Certified Maintenance and Reliability Professional (CMRP) practice questions with answers and explanations. No signup required. Work through them below, then take the full free CMRP practice test to study every exam domain.
The CMRP exam has 110 questions and runs 2 hours 30 minutes.
A line operates with Availability 90%, Performance 95%, Quality 99%. The OEE is approximately:
Correct answer: D - About 84.6 percent
According to Nowlan & Heap, what percentage of components show age-related (A+B+C) failure patterns?
Correct answer: B - About 11 percent
Only ~11% of components are age-related (Patterns A, B, C); ~89% are random (Patterns D, E, F). This finding is the foundation of modern RCM.
The FIRST question in the RCM evaluation per SAE JA1011 addresses:
Correct answer: C - Functions and performance
The seven RCM questions begin with 'What are the functions and associated performance standards?' before any failure analysis.
A vibration program detects potential failure 60 days before functional failure. The MAXIMUM appropriate inspection interval is:
Correct answer: D - 30 days
Inspection interval should be at most ½ of the P-F interval. With a 60-day P-F interval, inspections must occur at least every 30 days to detect potential failure before functional failure.
An FMEA shows Severity=10, Occurrence=2, Detection=1, RPN=20. Action should typically be:
Correct answer: B - Taken because S is 10
Severity ≥ 9 indicates a safety/regulatory hazard and requires action regardless of RPN. The multiplicative RPN can be misleadingly low when Occurrence and Detection are good - Severity always overrides.
A pump LCC analysis shows acquisition $80K, operating $150K, maintenance $90K, salvage $20K. What is the LCC?
Correct answer: B - $300,000 net cost
LCC = Acquisition + Operating + Maintenance − Salvage = $80K + $150K + $90K − $20K = $300K. Acquisition typically represents only 10-30% of total LCC.
In a RACI matrix, how many people can be 'Accountable' for a single task?
Correct answer: A - Exactly one person
Exactly one person is Accountable for each task. Multiple R's (Responsible) are allowed, but two A's = no clear ownership and is the most common RACI design failure.
A 90-day PM is due January 30. Per the ±10% rule, the latest compliant date is approximately:
Correct answer: C - About February 8
90 days × 10% = 9 days tolerance. January 30 + 9 days = February 8. SMRP world-class PM compliance target is ≥ 90% (≥ 95% for critical assets).
A facility has annual demand of 1,000 units, order cost of $50, and holding cost of $10/unit/year. The EOQ is approximately:
Correct answer: A - About 100 units
EOQ = √(2DS/H) = √(2 × 1000 × 50 / 10) = √10,000 = 100 units. EOQ minimizes the combined cost of ordering and holding inventory.
A wrench time study finds technicians at 28%. This is characteristic of:
Correct answer: C - A reactive operation
Typical industry / reactive environments range 18-35%. Planned & scheduled environments reach 50-55%. World-class is 55-65%. 28% indicates reactive maintenance with significant non-value-added time.
The Certified Maintenance and Reliability Professional (CMRP) exam is organized into 5 knowledge domains. These free practice questions are drawn from across them so you can see where you're strong and where to study:
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