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| Section | Objectives |
|---|---|
| Topic 1: Uptime® Elements Reliability Framework | - Work Execution Management (WEM) - Asset Condition Management (ACM) - Reliability Engineering for Maintenance (REM) - Asset Management (AM) - Leadership for Reliability (LER) |
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質問 # 89
Which of the following ranges of percentages is generally accepted to represent the extent that a preventive maintenance program can extend the usable life of an asset?
正解：B
解説：
The best answer is 20% to 30%. A well-executed preventive maintenance program extends usable asset life by reducing avoidable wear, contamination, misalignment, poor lubrication, loose components, overheating, and other degradation mechanisms before they accelerate into functional failure. Option C is too conservative for the general CRL-style estimate because 10% to 20% understates the value of a disciplined PM program on maintainable assets. Option B can occur in strong preventive or predictive maintenance environments, but as a general exam estimate it is more aggressive than the typical accepted range. The technically important point is that PM does not create unlimited life; it slows degradation and prevents premature failure where failure modes are age-related, usage-related, or condition-controllable. PM must still be optimized because excessive or poorly designed PM can waste labor and even introduce defects through unnecessary intrusive work. Public maintenance guidance commonly places equipment-life extension from preventive maintenance around the
20% to 40% range, making the 20% to 30% option the best conservative match.
質問 # 90
Management of change involves controlling risks associated with introducing changes to:
正解：C
解説：
Management of Change controls risks introduced by changes to assets, the organization, and its processes , so C is correct. MOC is broader than culture change. It applies when equipment, materials, design parameters, control logic, procedures, operating envelopes, maintenance intervals, suppliers, staffing, software, documentation, or organizational interfaces are changed. Each change can create unintended consequences:
new failure modes, hidden safety hazards, invalid maintenance strategies, training gaps, spare-part mismatches, or process instability. Option A is too narrow because culture is only one possible area affected by change. Option B is also incomplete because people and culture matter, but MOC must also govern technical and process changes that directly affect asset risk. In CRL's AM domain, MOC protects lifecycle value by ensuring that asset-related decisions remain controlled, reviewed, approved, communicated, and verified. ISO 55000-aligned asset management is built around balancing performance, cost, risk, and value across the asset lifecycle; uncontrolled change attacks that balance. Therefore, the broadest and most technically correct option is assets, the organization, and its processes.
質問 # 91
Which of the following comprises all the available data and observations of an asset?
正解：C
解説：
Asset Condition Information is the correct answer because the question is asking for the body of information that represents the observed and measured condition of an asset. In the CRL/Uptime Elements structure, this belongs under Asset Condition Management because ACM is concerned with understanding asset health, collecting condition evidence, and using that evidence to make better maintenance and asset-management decisions. Asset condition information can include inspection observations, operator checks, vibration readings, oil analysis, thermography, ultrasound, process data, alarms, failure history, and other condition indicators. Planning & Scheduling is not the correct answer because it deals with preparing and timing maintenance work, not collecting the condition evidence itself. Criticality Analysis is also incorrect because it ranks assets based on consequence and risk; it does not comprise all asset observations. Reliabilityweb describes ACM as focused on maximizing value from assets in alignment with organizational objectives, which requires understanding current asset health through condition information.
質問 # 92
Which of the following does the Total Acid Number (TAN) represent?
正解：C
解説：
The correct answer is B. Volume of acid , but technically the better engineering word is amount or quantity
, not literal volume. Total Acid Number measures the acidity level in an oil or fluid sample. It is normally expressed as milligrams of potassium hydroxide required to neutralize the acidic constituents in one gram of sample. Therefore, TAN does not identify the variety of acid, and it does not identify the type of acid. It represents how much acidic material is present, which makes option B the closest available answer in the video. In the CRL Asset Condition Management domain, TAN is important because rising acidity can indicate oxidation, lubricant degradation, contamination, or corrosive potential. Trending TAN over time is more useful than treating a single reading in isolation because reliability leaders need to know whether the lubricant is degrading toward a condition that can damage bearings, gears, hydraulic systems, or internal surfaces. Acid value/TAN definitions confirm that it quantifies acidity by neutralization requirement.
質問 # 93
Which of the following is a reasonable number of strategic level key performance indicators to develop in an organization?
正解：C
解説：
A reasonable number of strategic-level KPIs is 4 to 6 , so A is the best answer. Strategic KPIs must be few enough for leadership to focus attention, make decisions, and drive aligned behavior. If an organization has only 1 to 3 KPIs, it may miss critical dimensions such as safety, reliability, cost, risk, customer service, asset performance, or workforce capability. If it uses 7 to 9 strategic KPIs, the dashboard may become diluted and begin to look like an operational metrics pack rather than a strategic leadership system. CRL's Leadership for Reliability domain emphasizes alignment, sponsorship, and disciplined reliability culture. Strategic KPIs should therefore concentrate leadership on the few outcomes that matter most and prevent departments from optimizing local metrics at the expense of enterprise reliability. General KPI guidance defines KPIs as quantifiable measures of progress toward business objectives, and dashboard best-practice guidance favors a focused set of critical metrics rather than excessive measurement. For this exam context, 4 to 6 is the most balanced strategic range.
質問 # 94
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