Engineering Economics Basics
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Questions and Answers

Which of the following is NOT considered an economic goal?

  • A high level of employment
  • Technological Advancement (correct)
  • Price stability
  • Efficiency
  • Which of these represent the two major entities in a simple economy, as described in the text?

  • Businesses and households (correct)
  • Businesses and consumers
  • Government and consumers
  • Government and businesses
  • In the flow of an economy, what do households provide to businesses in exchange for consumer goods and services?

  • Production and distribution of goods and services
  • Consumption of final goods and services
  • Resources such as land, labor, and capital
  • Money payments for consumer goods and services (correct)
  • What is the concept of 'sunk cost' in engineering economics?

    <p>A cost that has already been incurred and cannot be recovered (A)</p> Signup and view all the answers

    What is the main purpose of a break-even analysis?

    <p>To identify the level of production or sales needed to cover all costs (C)</p> Signup and view all the answers

    Which of these is NOT a type of interest formula used in engineering economics?

    <p>Net Present Value Factor (C)</p> Signup and view all the answers

    What is the primary difference between engineering efficiency and economic efficiency?

    <p>Engineering efficiency is concerned with the technical aspects of a process, while economic efficiency considers its financial impact. (D)</p> Signup and view all the answers

    Which of the following is an example of 'opportunity cost'?

    <p>The potential profit lost by choosing to invest in one project over another (C)</p> Signup and view all the answers

    What is the main reason why technical efficiency can never exceed 100% in a diesel engine?

    <p>Energy losses due to friction and incomplete fuel combustion. (B)</p> Signup and view all the answers

    In the context of economic efficiency, what is the term used to describe the annual revenue generated by a business?

    <p>Worth (D)</p> Signup and view all the answers

    Which of the following is NOT a strategy for improving productivity as mentioned in the content?

    <p>Implementing automation to replace manual labor in repetitive tasks. (A)</p> Signup and view all the answers

    In the example of the steel plant, what is the primary impact of relocating the billet-making section closer to the furnace?

    <p>Decreased scale formation at the top of ladles carrying molten metal. (B)</p> Signup and view all the answers

    Which of the following strategies for improving productivity involves increasing output while keeping input constant?

    <p>Increased output for the same input. (D)</p> Signup and view all the answers

    Which of the following statements is TRUE about economic efficiency?

    <p>Economic efficiency can be greater than 100% for a thriving business. (C)</p> Signup and view all the answers

    What is the primary difference between technical efficiency and economic efficiency?

    <p>Technical efficiency focuses on physical output, while economic efficiency focuses on financial output. (B)</p> Signup and view all the answers

    Which of the following is an example of a strategy that would likely contribute to increased technical efficiency?

    <p>Reducing waste and rework within the production process. (C)</p> Signup and view all the answers

    What is the primary goal of Value Engineering?

    <p>To reduce the cost of a product while maintaining or improving its functionality (B)</p> Signup and view all the answers

    In which step of the Value Engineering process are alternative solutions generated?

    <p>Step 4: Different alternatives (C)</p> Signup and view all the answers

    What is the purpose of the critical evaluation step in Value Engineering?

    <p>To identify the most cost-effective solution among the alternatives (A)</p> Signup and view all the answers

    What is the cost of transporting a single steel window frame from Beta State to Alpha State?

    <p>Rs. 1,875 (A)</p> Signup and view all the answers

    Which step involves developing a prototype and testing its performance in a real-world setting?

    <p>Step 7: Implement the alternative (C)</p> Signup and view all the answers

    What is the significance of identifying the high cost areas in a product?

    <p>To identify areas where cost-saving measures can be implemented (C)</p> Signup and view all the answers

    What is the difference in the cost of a single steel window frame and a single aluminum window frame when considering the transportation costs?

    <p>Rs. 675 (B)</p> Signup and view all the answers

    Which of these is NOT considered a benefit of Value Engineering?

    <p>Increased production costs (A)</p> Signup and view all the answers

    What is the main factor influencing the selection of the window frame material in this scenario?

    <p>Cost of transportation (B)</p> Signup and view all the answers

    If the shipping rate were to increase to Re 2 per kg per 100 km, how would this impact the total cost of a single steel window frame?

    <p>Increase by Rs. 1,875 (D)</p> Signup and view all the answers

    Which of the following industries is a potential application of Value Engineering?

    <p>Automotive Industry (C)</p> Signup and view all the answers

    Based on the provided text, what is the relationship between interest rate and capital growth?

    <p>Interest rate is directly proportional to the growth of capital. (A)</p> Signup and view all the answers

    Assuming the same transportation cost, what would be the cost of transporting an aluminum window frame if its weight were 35 kg?

    <p>Rs. 875 (A)</p> Signup and view all the answers

    Which of the following statements is TRUE about the economic advantage of using aluminum window frames in this case?

    <p>It takes into account the difference in weight between the two frame types. (C)</p> Signup and view all the answers

    What is the impact of a decrease in the price of a product on its demand and supply?

    <p>Demand increases, supply decreases. (B)</p> Signup and view all the answers

    Why is the location of the building site considered a significant factor in material selection?

    <p>It influences the ease of access to building materials. (A)</p> Signup and view all the answers

    Which of the following factors influences the shape of the demand curve?

    <p>The tastes of consumers. (C)</p> Signup and view all the answers

    What happens to the demand curve when people's income level rises significantly?

    <p>The demand curve shifts to the northwest. (C)</p> Signup and view all the answers

    Which of the following statements is a valid conclusion based on this scenario?

    <p>The transportation cost should always be considered when selecting building materials. (D)</p> Signup and view all the answers

    How do the prices of related goods affect the demand for a product?

    <p>They can either increase or decrease demand, depending on the relationship. (C)</p> Signup and view all the answers

    What is the equilibrium point in the context of demand and supply?

    <p>The point where supply and demand are equal. (C)</p> Signup and view all the answers

    Which of the following is NOT a factor influencing demand?

    <p>Availability of resources. (C)</p> Signup and view all the answers

    How do the prices of related goods impact demand?

    <p>They can either increase or decrease the demand for the product. (C)</p> Signup and view all the answers

    What does the diagram in the text illustrate?

    <p>The relationship between supply, demand and the equilibrium point. (D)</p> Signup and view all the answers

    What is the economic advantage/unit of an aluminium window frame over a steel window frame?

    <p>Rs. 675 (B)</p> Signup and view all the answers

    What is the primary objective of process planning/process modification?

    <p>To determine the best way to combine and sequence operations for cost minimization (B)</p> Signup and view all the answers

    Which of the following is NOT a step in process planning?

    <p>Develop a marketing plan for the component (B)</p> Signup and view all the answers

    In the provided example (Example 2.6), which process sequence is determined to be the most economical?

    <p>Turning - Milling - Drilling (A)</p> Signup and view all the answers

    What information is needed to calculate the cost of a particular process sequence?

    <p>Both processing times and machine hour rates for each operation (B)</p> Signup and view all the answers

    Why is the process sequence of a component not static?

    <p>To minimize the cost of manufacturing (A)</p> Signup and view all the answers

    What is the purpose of consulting product engineers on product design changes?

    <p>To improve the overall design and reduce manufacturing costs (B)</p> Signup and view all the answers

    What is the most likely reason for a process planning engineer to recommend changes to the product design?

    <p>To reduce the overall production time (C)</p> Signup and view all the answers

    Flashcards

    Law of Supply and Demand

    Economic theory describing how price and quantity are determined in a market.

    Engineering Economics

    Application of economic principles to engineering projects and decisions.

    Opportunity Cost

    The cost of forgoing the next best alternative when making a decision.

    Break-Even Analysis

    Determining the sales volume at which total revenues equal total costs.

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    Marginal Cost

    The cost of producing one additional unit of a good or service.

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    Time Value of Money

    Concept that a sum of money has different value today versus in the future due to potential earning capacity.

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    Economic Goals

    Objectives aimed at improving overall economic performance and welfare such as employment and growth.

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    Flow in an Economy

    The interaction between households and businesses in terms of goods, services, and payments.

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    Economic Resources

    Inputs like land, labor, and capital used for production.

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    Equilibrium Point

    The price where quantity supplied equals quantity demanded.

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    Factors Influencing Demand

    Elements like income, prices of related goods, and consumer tastes that affect demand.

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    Increase in Income Impact

    Higher income levels shift the demand curve to the northeast.

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    Decrease in Price Effect

    Lower prices increase demand and decrease supply.

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    Related Goods Pricing

    The price of one good can affect the demand for another related good.

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    Consumer Tastes Shift

    Changes in consumer preferences that impact demand for products.

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    Efficiency of a system

    The ratio of output to input in a system.

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    Technical efficiency

    Ratio of output to input for a physical system like engines or machines.

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    Economic efficiency

    Ratio of output to input in a business system, representing profitability.

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    Productivity

    Another name for economic efficiency, emphasizing output per input.

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    Increased output for same input

    Strategy to boost output while keeping inputs constant.

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    Decreased input for same output

    Strategy to lower inputs while maintaining output levels.

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    Proportionate output increase

    Output increases more than input increases.

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    Simultaneous increase and decrease

    Increasing output while simultaneously decreasing input.

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    Economic Advantage of Aluminum Frames

    The economic advantage of aluminum frames over steel frames is Rs. 675.

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    Process Planning Definition

    Process planning is the method of determining the most economical sequence of operations to manufacture a component.

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    First Step in Process Planning

    Analyze the part drawing to gain an overall understanding of what is required for manufacturing.

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    Consultation in Process Planning

    Make recommendations to product engineers on changes in product design during process planning.

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    Basic Operations Listing

    List the essential operations required to produce the part according to specifications.

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    Selecting Manufacturing Method

    Determine the most practical and economical manufacturing method and necessary tooling for each operation.

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    Combining Operations

    Devise the best way to combine operations and sequence them for manufacturing.

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    Gauging Specification

    Specify the gauging requirements necessary for the manufacturing process.

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    Economic Advantage

    The difference in cost between two alternatives. Here, it's Rs. 67,500 between designs A and B.

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    Sourcing Raw Materials

    The process of finding and purchasing raw materials necessary for production.

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    Transportation Cost

    The cost incurred to transport goods from one location to another.

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    Steel vs. Aluminium Frames

    Comparison of costs and properties between steel and aluminium window frames.

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    Total Cost Calculation

    Sum of raw material price and transportation cost for a unit.

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    Cost of Steel Frame

    Rs. 2,875 total cost for one steel window frame, including transport.

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    Cost of Aluminium Frame

    Rs. 2,200 total cost for one aluminium window frame, including transport.

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    Recommended Design

    Aluminium window frames are preferred due to lower total cost.

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    Technical Specifications

    Detailed documents that describe the design and features of a product.

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    Value Engineering

    A methodology to improve product value by analyzing functions and costs.

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    Brainstorming Session

    A group activity to generate creative ideas without criticism.

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    Critically Evaluate Alternatives

    Comparing and assessing different ideas for feasibility and cost.

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    Developing the Best Alternative

    Creating detailed plans for the most promising idea from evaluations.

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    Prototyping

    The process of creating a working model based on the best alternative.

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    Applications of Value Engineering

    Industries utilizing value engineering like auto and machine tool industries.

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    Interest Rate

    The cost of borrowing money, expressed as a percentage.

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    Study Notes

    Introduction to Economics

    • Economics is the study of production, consumption, and distribution of goods and services for human welfare.
    • Key economic goals include high employment, stable prices, efficiency, equitable distribution of income, and economic growth.

    Flow in an Economy

    • A simple economy involves households and business organizations.
    • Households provide resources (land, labor, capital) to businesses.
    • Businesses use resources to produce goods and services and pay households for these resources.
    • Households use the income from businesses to buy goods and services.
    • This cycle demonstrates the interdependence between households and businesses.

    Law of Supply and Demand

    • Demand and supply are interdependent and responsive to price.
    • As price decreases, demand increases and supply decreases.
    • The equilibrium point is where supply equals demand, determining the price.

    Factors Influencing Demand

    • Income of consumers: Higher income leads to higher demand.
    • Price of related goods: Prices of complements decrease demand, whereas prices of substitutes increase demand.
    • Tastes and preferences: Change in consumer tastes shifts demand curves.

    Factors Influencing Supply

    • Cost of inputs: Increased input costs reduce supply.
    • Technology: Advancements in technology increase supply.
    • Weather: Conditions like drought or floods impact supply.
    • Price of related goods: Effects on the supply of related goods.

    Concept of Engineering Economics

    • Engineering economics applies scientific principles to different physical systems.
    • Pricing and demand & supply are important for efficient organizational functioning.

    Types of Efficiency

    • Technical efficiency: Ratio of output to input in a physical system.
    • Economic efficiency: Ratio of output to input in a business system, considering costs and worth.

    Other Costs/Revenues

    • Marginal cost: Cost of producing an additional unit.
    • Marginal revenue: Revenue from selling an additional unit.
    • Sunk cost: Irrecoverable past costs.
    • Opportunity cost: Value of the next best alternative forgone.

    Break-Even Analysis

    • Break-even point: The production volume where total revenue equals total cost (no profit, no loss).

    • Break-even volume:

    • calculated by dividing fixed costs by contribution per unit.

    • Selling Price per unit - Variable Cost per unit

    Profit/Volume Ratio (P/V Ratio)

    • P/V Ratio: Contribution divided by sales; Indicates the profitability of a product or business.

    • Break-even point:

      • calculated by dividing Fixed Cost by Profit/Volume Ratio

    Example Problems

    • Provided examples using specific numerical data to illustrate the calculation of various economic concepts like break-even analysis, contribution margin, and so on.

    Value Analysis/Value Engineering

    • Value analysis: A systematic process to improve the value of an existing product or service by reducing costs and/or improving function/performance.
    • Value engineering: A similar process used for new product design to prevent costly mistakes.
    • Steps: Identify the product, collect information, define functions, generate alternatives, evaluate, refine/develop the best alternative, and implement.

    Process Planning/Process Modification

    • Determining the most economical path/sequence of manufacturing operations.
    • Steps Include:Analyze the part, make recommendations, list basic operations, determine manufacturing method, devise best operation sequence, and specify gauging requirements.

    Make or Buy Decisions

    • Analyzing if a company should produce a product or service in-house or purchase it from an external provider.
    • Factors for choosing to "Make": Lower cost than buying, specific quality/control needed for component, part complexity, existing in-house capacity.

    Simple Cost Analysis

    • Analyzing the costs associated to make a product internally versus buying from another provider.
      • Costs to consider: Materials, labor, overhead, and fixed costs.

    Interest Formulas and Their Applications

    • Interest rate: The cost of borrowing money or the return on investment.
    • Simple interest: Interest calculated only on the principal amount.
    • Compound interest: Interest calculated on the principal and accumulated interest.

    Time Value of Money

    • Concept: A dollar today is worth more than a dollar in the future due to potential earnings.

    • Time Value of money can be represented by a formula:

    • Future Value = Present Value * (1 + i)^n

    • Calculating future and present worth based on given interest rate, time, and principal amount.

    Uniform Gradient Series

    • Calculations for uniform gradient series considering specific interest and time factors.

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    Description

    This quiz covers fundamental concepts in engineering economics, including economic goals, efficiency, and cost analysis. Test your understanding of key terms such as opportunity cost and break-even analysis as applied in engineering contexts.

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