Discussion
Cost estimating relationships derived from historical data are least reliable when applied to
Answer: D
Correct answer: A configuration unlike anything in the database
Parametric cost relations are regressions fitted to historical programmes, so they interpolate within the experience they were built on and extrapolate beyond it only on faith. A configuration unlike anything in the database - a novel layout, an unfamiliar material system, an unprecedented propulsion arrangement - lies outside that experience entirely.
The other three are all near the data. A slightly larger conventional aircraft, a derivative and a re-engined variant are exactly the cases such models handle well, which is why derivative programmes carry so much less cost risk than clean sheets.
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development