Common Exam Questions Flashcards
Pre-Posterior Analysis Considerations
- Does the value of the information outweigh the cost of the test?
- Consequences of the decision
- Accuracy of test results
Misconceptions of labeling a flood a ‘100-year event’
Implies that it will occur every 100 years
Principals of Asset Management Systems
- Policy-driven
- Performance-based
- Options evaluated
- Clear accountability
Limitations of the Analytical Hierarchy Process
- Participants can view as a black box
- Labour and time intensive
- Can require many iterations to get a consistent matrix
- Pairwise comparisons become less accurate with increasing criteria
Limitations of Strategic Plan in Asset Management
- Does not account for black swan events
- Infrastructure asset needs come in waves
- Models only as good as data available
- Not flexible, contextual situations can change very rapidly
Difference between Monte Carlo and Latin Hypercube Sampling
Monte Carlo: Sample points created without considering previous samples, not required to know amount of data points required
Latin Hypercube: Sample points created using a grid, number of samples decided at start
Hawthorne Effect
Individuals change their behavior on account of observation from others
Allais’s Paradox
- Observation that humans deviate from logical utility theory
- Humans assume the prospect of a loss more significant than the potential utility gain
NPV Method
Accept any project with a positive NPV
Payback Method
Accept a project with a payback period less than the stipulated time frame
Scientific Management Method Principles
- Scientifically optimise work routines
- Scientifically select and train workers
- Ensure routines are followed
- Managers and workers to use scientific methods
Disadvantages of the Scientific Management Method
- Work becomes monotonous
- Worker measured off output alone
- Low job satisfaction
Advantages/Disadvantages of Delphi Method
Advantages:
- Group decisions preferable to individual judgment
- Uses expert opinion
- Minimises variance
Disadvantages:
- Requires a panel of experts
- Group bias can influence opinions
Advantages/Disadvantages of Top-Down Estimation Approach
Advantages:
- Quick and labour efficient
- Gives preliminary estimate
- Shows project viability
Disadvantages:
- Contains 30% error
- No account for labour/resources
- Relies on similar projects
Advantages/Disadvantages of Bottom-up Estimation Approach
Advantages:
- Only 5% error
- Used to create SOV
- Allows tender submissions
Disadvantages:
- Labour/time intensive