🔹 SECTION 1: RBI FUNDAMENTALS (1–10)
What is the main purpose of RBI?
A. Eliminate inspection
B. Optimize inspection based on risk
C. Increase cost
D. Replace engineering
👉 Answer: B
Risk is defined as:
Risk=Probability × Consequence
- RBI decisions are primarily based on:
A. Cost
B. Time
C. Risk
D. Vendor
👉 Answer: C
RBI is best described as:
A. Time-based
B. Risk-based methodology
C. Random inspection
D. Design tool
👉 Answer: B
RBI focuses inspection on:
A. All equipment equally
B. High-risk equipment
C. New equipment only
D. Low-risk equipment
👉 Answer: B
RBI helps to:
A. Eliminate inspection
B. Optimize inspection
C. Increase failure
D. Ignore risk
👉 Answer: B
RBI is:
A. Static
B. Dynamic
C. Fixed
D. Random
👉 Answer: B
RBI integrates:
A. Risk + inspection data
B. Cost only
C. Vendor input
D. Design only
👉 Answer: A
High risk occurs when:
A. Low PoF + Low CoF
B. High PoF + High CoF
C. Low PoF only
D. Random
👉 Answer: B
RBI output includes:
A. Inspection plan
B. Risk ranking
C. Strategy
D. All
👉 Answer: D
🔹 SECTION 2: PROBABILITY OF FAILURE (11–20)
Probability of failure increases with:
A. Corrosion
B. Fatigue
C. Erosion
D. All
👉 Answer: D
Inspection reduces:
A. CoF
B. PoF
C. Cost
D. Design
👉 Answer: B
Corrosion causes:
A. Lower PoF
B. Higher PoF
C. No change
D. Zero risk
👉 Answer: B
Aging equipment leads to:
A. Lower PoF
B. Higher PoF
C. No effect
D. Zero risk
👉 Answer: B
Harsh environment results in:
A. Lower PoF
B. Higher PoF
C. No change
D. Reduced risk
👉 Answer: B
Damage factor represents:
A. Cost
B. Degradation level
C. Time
D. Pressure
👉 Answer: B
Inspection effectiveness refers to:
A. Cost
B. Detection ability
C. Time
D. Design
👉 Answer: B
Poor maintenance leads to:
A. Lower PoF
B. Higher PoF
C. No change
D. No risk
👉 Answer: B
Multiple damage mechanisms result in:
A. Lower risk
B. Combined risk
C. No risk
D. Ignore
👉 Answer: B
Material upgrade leads to:
A. Higher PoF
B. Lower PoF
C. No change
D. Failure
👉 Answer: B
🔹 SECTION 3: CONSEQUENCE OF FAILURE (21–30)
Consequence includes:
A. Safety
B. Environment
C. Economic loss
D. All
👉 Answer: D
High consequence example:
A. Minor leak
B. Explosion
C. Noise
D. Paint issue
👉 Answer: B
Toxic release results in:
A. Low CoF
B. High CoF
C. No effect
D. Ignore
👉 Answer: B
Environmental damage is part of:
A. PoF
B. CoF
C. Design
D. Inspection
👉 Answer: B
Economic loss is:
A. PoF
B. CoF
C. Design
D. Ignore
👉 Answer: B
Safety impact belongs to:
A. PoF
B. CoF
C. Design
D. Inspection
👉 Answer: B
Remote location leak has:
A. High CoF
B. Low CoF
C. Medium
D. Critical
👉 Answer: B
Fire hazard represents:
A. Low CoF
B. High CoF
C. No CoF
D. Design
👉 Answer: B
Multiple fatalities indicate:
A. Low CoF
B. High CoF
C. No CoF
D. Ignore
👉 Answer: B
Consequence is mainly influenced by:
A. Inspection
B. Scenario
C. Cost
D. Time
👉 Answer: B
🔹 SECTION 4: RISK & MATRIX (31–40)
Risk is calculated as:
Risk=Probability × Consequence
Low PoF + High CoF leads to:
A. Low risk
B. Medium/high risk
C. No risk
D. Ignore
👉 Answer: B
Risk matrix is used to:
A. Calculate cost
B. Visualize risk
C. Design system
D. Paint
👉 Answer: B
RBI prioritizes:
A. Low risk
B. High risk
C. Random
D. Vendor
👉 Answer: B
Risk ranking helps:
A. Design
B. Inspection planning
C. Welding
D. Painting
👉 Answer: B
High consequence equipment should be:
A. Ignored
B. Prioritized
C. Removed
D. Reduced
👉 Answer: B
Risk reduction includes:
A. Inspection
B. Repair
C. Replacement
D. All
👉 Answer: D
Low-risk equipment requires:
A. More inspection
B. Less inspection
C. Shutdown
D. Replacement
👉 Answer: B
Risk changes when:
A. Nothing changes
B. Conditions change
C. Vendor changes
D. Cost changes
👉 Answer: B
RBI ensures:
A. Random inspection
B. Optimized inspection
C. No inspection
D. Vendor control
👉 Answer: B
🔹 SECTION 5: APPLICATION & SCENARIOS (41–50)
Conflicting data requires:
A. Ignore
B. Investigation
C. Guess
D. Accept
👉 Answer: B
Inspection shows no damage but risk is high:
A. Ignore RBI
B. Reassess
C. Reduce inspection
D. Accept
👉 Answer: B
New damage mechanism discovered:
A. Ignore
B. Update RBI
C. Reduce inspection
D. Delay
👉 Answer: B
Poor data quality leads to:
A. Lower risk
B. Higher uncertainty
C. No change
D. Ignore
👉 Answer: B
Vendor recommendation should be:
A. Accepted
B. Verified
C. Ignored
D. Assumed
👉 Answer: B
RBI study must be updated when:
A. Nothing changes
B. Conditions change
C. Vendor changes
D. Cost changes
👉 Answer: B
Safety issues require:
A. Delay
B. Immediate action
C. Ignore
D. Accept
👉 Answer: B
Inspection effectiveness depends on:
A. Method
B. Skill
C. Frequency
D. All
👉 Answer: D
RBI is mainly:
A. Qualitative only
B. Quantitative only
C. Both – semi Quantitative
D. None
👉 Answer: C
Final goal of RBI:
A. Eliminate inspection
B. Optimize risk management
C. Increase cost
D. Reduce safety
👉 Answer: B
🎯 HOW TO USE THESE
If you want to pass API 580:
👉 Focus on:
Risk logic (PoF × CoF)
Inspection reduces PoF
High consequence = priority
RBI = dynamic decision system
