Mixed Deck — All CMRP Topics Flashcards

What is the difference between preventive and predictive maintenance?

Answer: Preventive is time-based; predictive uses condition monitoring data to determine when maintenance is needed

Preventive maintenance follows a schedule regardless of condition, while predictive maintenance uses actual equipment condition data to determine the optimal maintenance time.

Sample question 3 for Work Management & Maintenance Strategy

Answer: Correct option B

This is a placeholder question. In a real scenario, 'Correct option B' would represent the accurate answer to a specific question about work management or maintenance strategy. The explanation would then detail why that option is correct, referencing relevant principles, tools, or methodologies within that domain.

Which grading system is used to classify the consistency (firmness) of grease for bearing applications?

Answer: NLGI consistency grade

The NLGI (National Lubricating Grease Institute) consistency grade, ranging from 000 (fluid) to 6 (very stiff), specifies grease firmness for a given application.

What is a key function of a maintenance business strategy?

Answer: To establish goals and direct resource allocation

A maintenance business strategy defines the long-term objectives for maintenance operations and outlines how resources, such as budget, personnel, and technology, will be allocated to achieve these goals. It provides a roadmap for optimizing asset performance, managing risks, and ensuring that maintenance efforts contribute effectively to the organization's overall success.

A reliability engineer needs to select the most appropriate predictive technology to detect a cracked or broken rotor bar in a large induction motor while it is operating under its normal load. Which technology is BEST suited for this specific task?

Answer: Motor Current Signature Analysis (MCSA)

Motor Current Signature Analysis (MCSA) is the premier technology for detecting rotor bar faults in an induction motor while it is running under load. A broken rotor bar causes a distinct modulation in the stator current, which appears as sideband frequencies around the main 50/60 Hz peak in the current's spectrum. The other technologies are not effective for this specific internal, electrical fault under operating conditions.

Which lubrication delivery method distributes oil to bearings and gears by the action of rotating components contacting an oil sump?

Answer: Splash lubrication

Splash lubrication uses rotating components to pick up oil from a sump and fling it onto bearing surfaces through splashing action.

What is the purpose of maintenance KPIs?

Answer: To measure maintenance department performance, identify trends, and drive continuous improvement

KPIs provide objective data about maintenance effectiveness, helping identify areas for improvement and track the impact of changes to maintenance strategies.

What Key Performance Indicator (KPI) measures the percentage of time equipment is available for use?

Answer: Availability rate — calculated as (available time / total time) × 100%

Equipment availability measures the proportion of time that equipment is in a condition to perform its intended function, excluding downtime for maintenance and repairs.

What does the term 'near miss' mean in the context of safety management?

Answer: An unplanned event that did not result in injury but had the potential to do so

A near miss is an unplanned event with the potential to cause injury or damage that, by chance or timely intervention, did not result in harm.

Which lubricant additive category forms a protective film on metal surfaces to prevent rust and corrosion from water and acidic contaminants?

Answer: Rust and corrosion inhibitors

Rust and corrosion inhibitors adsorb onto metal surfaces to create a barrier that prevents oxidation and chemical attack from water, acids, and other corrosive agents.

A manufacturing plant is experiencing frequent, unexpected breakdowns of a specific type of pump, leading to significant production losses. As a reliability professional, which business management principle should be applied FIRST to address this situation?

Answer: Conducting a Root Cause Analysis (RCA) to identify and eliminate the underlying cause of the failures.

While 5S and RbM are valuable long-term strategies and overtime might be a temporary fix, the immediate priority is to stop the recurring failures. Root Cause Analysis is a systematic problem-solving method used to identify the fundamental causes of a problem so that effective corrective actions can be implemented to prevent recurrence.

Sample question 1 for Work Management & Maintenance Strategy

Answer: Correct option B

This is a placeholder question. In a real scenario, 'Correct option B' would represent the accurate answer to a specific question about work management or maintenance strategy. The explanation would then detail why that option is correct, referencing relevant principles, tools, or methodologies within that domain.

In a permit-required confined space program, which role is responsible for monitoring conditions inside the space during entry?

Answer: Attendant

The attendant remains outside the confined space, continuously monitors conditions, and is authorized to order evacuation if hazardous conditions develop.

A steadily increasing Total Acid Number (TAN) trend in sequential oil samples most likely indicates:

Answer: Ongoing oil oxidation and progressive additive depletion

Rising TAN reflects accumulation of acidic oxidation by-products and exhaustion of alkaline additives, signaling that the lubricant is approaching end of service life.

What is the purpose of a maintenance business case?

Answer: To justify funding through cost-benefit analysis

A maintenance business case is a formal document used to present the rationale and financial justification for proposed maintenance projects or strategies. It outlines the costs involved, the anticipated benefits (e.g., increased uptime, reduced repair costs, improved safety), and the return on investment. This analysis helps secure necessary funding and resources by demonstrating the value and necessity of maintenance initiatives to stakeholders.

Sample question 4 for Manufacturing Process Reliability & Improvement

Answer: Correct option B

This is a placeholder question. In a real scenario, 'Correct option B' would represent the accurate answer to a specific question about manufacturing process reliability or improvement. The explanation would then detail why that option is correct, referencing relevant principles, tools, or methodologies within that domain.

What is the asset lifecycle in maintenance and reliability?

Answer: The complete life of an asset from acquisition through operation to disposal or replacement

The asset lifecycle encompasses all phases: planning, acquisition, installation, operation, maintenance, and eventual decommissioning or replacement.

How does reliability-centered maintenance (RCM) improve asset performance?

Answer: By optimizing maintenance based on risk and function

Reliability-Centered Maintenance (RCM) is a systematic approach that determines the optimal maintenance strategy for each asset based on its specific functions, potential failure modes, and the consequences of failure. It prioritizes maintenance tasks by focusing on critical components and failure patterns that pose the highest risk. This optimization ensures resources are used effectively, maximizing asset performance and reliability while minimizing unnecessary maintenance.

When should a maintenance organization consider using a consignment inventory agreement with a supplier?

Answer: When carrying high-value, slow-moving parts whose stockout risk justifies availability but whose cost makes ownership expensive until consumed

Consignment is ideal for expensive, low-turnover parts because the supplier retains ownership and the facility only pays when parts are consumed, reducing capital tied up in inventory.

Sample question 7 for Manufacturing Process Reliability & Improvement

Answer: Correct option B

This is a placeholder question. In a real scenario, 'Correct option B' would represent the accurate answer to a specific question about manufacturing process reliability or improvement. The explanation would then detail why that option is correct, referencing relevant principles, tools, or methodologies within that domain.