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Engineering economics may be useful for answering all of the following except
Determining which projects are worthwhile
Determining which projects have higher priority
Determining how safe is the project
Determining how would be the life cycle of the project
Determining how safe is the project
Engineering economics is a subset of economics for technical analysis, primarily concerned with the monetary evaluation of projects based on time-value of money. It evaluates fiscal viability, ranking, and life-cycle costs, but it does not evaluate physical or structural safety, which falls under the domain of safety engineering or structural design.
Engineering economics is a subset of economics for technical analysis, primarily concerned with the monetary evaluation of projects based on time-value of money. It evaluates fiscal viability, ranking, and life-cycle costs, but it does not evaluate physical or structural safety, which falls under the domain of safety engineering or structural design.
NPV=тИСt=0nтАЛ(1+i)tRtтАЛтАЛ тАФ Net Present Value formula used to evaluate project worthiness
LCC=CIтАЛ+тИСt=1nтАЛ(1+i)tCOM,tтАЛтАЛ тАФ Life Cycle Cost formula representing total cost of ownership
Engineering economics operates on the principle of cash flow analysis and discounting techniques. It calculates values such as Net Present Value (NPV), Internal Rate of Return (IRR), and Payback Period to determine financial performance. It treats all project attributes as monetary flows or costs, whereas safety is a qualitative or physical reliability parameter that is not inherently quantitative in monetary terms.
Engineering economics converts qualitative factors into monetary metrics.
Financial viability includes factors like ROI, BCR, and NPV.
Safety is a physical risk metric, not a monetary one unless converted to insurance premiums or risk-adjusted costs.
Project lifecycle analysis focuses on cost distribution over time.
Provides objective criteria for decision-making.
Allows comparison between mutually exclusive projects.
Relies on assumptions about future economic conditions.
Does not account for non-monetary human or environmental impacts directly.
Capital budgeting in large infrastructure projects.
Asset replacement decisions in manufacturing.
Option A is a primary function of economic analysis.
Option B relates to capital rationing and resource allocation.
Option D relates to the Total Cost of Ownership (TCO) methodology.
Safety (Option C) requires dedicated engineering safety analysis (e.g., HAZOP studies, FMEA).
C is correct тАФ Engineering economics deals with financial and monetary assessments of projects, whereas safety is a technical or physical discipline independent of cost-benefit arithmetic.
In exams, always distinguish between 'economic' feasibility (financial) and 'technical' feasibility (safety, physical, regulatory).