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production and operations management
Production And Operations Management 1st Edition McGraw-Hill Education India - Solutions
The formula to compute the reliability of a parallel system with k units is(a) R = (1 — R1 )(1 — R2)(1 — R3) ... (1 — RK)(b) R = 1 — (1 — R1 )(1 — R2)(1 — R3) ... (1 — RK)(c) R = 1 + (1 — R1 )(1 — R2)(1 — R3) ... (1 — RK)(d) None of the above AppendixLO1
standby units will improve t he reliability of the system.(b) Later stage(d) None of the above(a) More and more (b) Less and less(c) Both (a) and (b) (d) None of the above AppendixLO1
More and more components in series will , the reliability of the whole system.stage of its life cycle.(a) Increase(b) Decrease(c) Flatten(d) None of the above AppendixLO1
Drastic failure rate of a product occur at the(a) Early(c) Middle stage AppendixLO1
is the probability of survival of a product.(a) Testing (b) Fitness(c) Reliability (d) None of the above AppendixLO1
can also be used to determine the desirable number of maintenance mechanics.(a) Linear programming (b) Simulation(c) Assignment method (d) None of the above AppendixLO1
theory is used to determine the crew size of maintenance mechanics.(a) Game (b) Network(c) Queueing (d) None of the above AppendixLO1
The number of items in the analysis while computing the average cost of group replacement.(a) Should be known (b) Need not to be known(c) Both (a) and (b) (d) None of the above AppendixLO1
life of the items is to be computed to determine the individual replacement cost per period.(a) Maximum (b) Minimum(c) Expected (d) None of the above AppendixLO1
In replacement, all the items are replaced at the beginning of every period which is fixed.(a) Individual (b) Group(c) Breakdown (d) None of the above AppendixLO1
Replacement analysis without discounting factor is(a) A realistic analysis (b) Not a realistic analysis(c) A simulation analysis (d) None of the above AppendixLO1
factor is required to compute the economic life of an asset.(a) (AIP, i, n) (b) (F/A, i, n)(c) (XIA, i, n) (d) None of the above AppendixLO1
The operating and maintenance cost will increase when the life of the equipment is(a) Decreased(c) Maintained constant(b) Increased(d) None of the above AppendixLO1
The capital recovery cost will decrease if the life of the equipment is(a) Decreased (b) Increased(c) Maintained constant (d) None of the above AppendixLO1
The economic life of an equipment is the life at which the total cost is(a) Average cost (b) Minimum cost(c) Maximum cost (d) None of the above AppendixLO1
The preventive maintenance cost goes on decreasing when the level of maintenance activity is(a) Decreased (b) Increased(c) Maintained constant (d) None of the above AppendixLO1
The breakdown maintenance cost goes on decreasing when the level of maintenance activity is(a) Decreased (b) Increased(c) Maintained constant (d) None of the above AppendixLO1
maintenance is the periodical inspection and service activities to maintain an equipment.(a) Breakdown (b) Preventive(c) Individual (d) None of the above AppendixLO1
1. Three months ago, you started working in this manufacturing plant. One assembly, which requires a reliability of 0.95, is normally purchased from a local supplier. You have decided to produce this part-in house to increase workers' pride. The part, now being assembled in-house, is made up from
6. How cost and reliability are associated with each other? which factor is most important to the company while purchasing a product?
5. Define system analysis. What are its different approaches?
4. What is failure rate? What are its different types?
3. How will you measure reliability?
2. Define the relationship of maintenance and reliability.
1. What is reliability and how redundancy is related to it?
12. Select True or False: (a) Reliability means the probability that a machine will function properly for a specified time. (b) Functional failure is the failure that occurs after some period of use. (c) Reliability can be improved by preventive maintenance procedures. (d) Redundancy provides
11. Which type of reliability is predicted by product design? (a) Achieved reliability (c) Both (a) & (b) (b) Inherent reliability (d) None of the above
9. The formula reliability Index (R.I.) is: (a) R.I. Quality Performance x Time Performance x Speed Performance (b) RI. Quality Performance + Time Performance + Speed Performance = (c) R.I. MTBPL/MPL (d) R.I.MPL/MTBPL
8. _________ is the duplication of critical components of a system with the intention of increasing reliability of the system, usually in the case of a back-up or fail-safe. (a) Reliability (b) Redundancy (c) Failure rate (d) Probability
7. Which formula is correct? (a) MTBF System availability (c) MTBF = 1/Failure rate (b) MTBF = MTTR (d) None of the above
6. Which type of failure occurs at the start of product life due to manufacturing or material defects? (a) Functional failure (c) Both (a) & (b) (b) Reliability failure (d) None of the above
5. Reliability can be improved in the following way (s): (a) Component design (c) Redundancy (b) Production techniques (d) All of the above
3. Reliability measurement considers which aspects? (a) Failure rate (c) Mean time between failure (b) Mean time to failure (d) All of the above
1. The formula for overall production reliability is: (a) Quality + Speed + Time Availability (b) Qualityx Speed x Time Availability (c) Qualityx [Speed + Time Availability] (d) Quality + [Speed X Time Availability]
3. 'Validating quality is equally important as quality to make the product reliable.' Explain.Designing for Reliability Selecting the best printers for satisfying the customer needs, requires to make informed choices based on the way rugged mobile printers are designed and made. Designing a quality
2. Design is the important part of reliability. Comment with justification.Designing for Reliability Selecting the best printers for satisfying the customer needs, requires to make informed choices based on the way rugged mobile printers are designed and made. Designing a quality printer begins in
1. How does reliability increase the quality of printers?Designing for Reliability Selecting the best printers for satisfying the customer needs, requires to make informed choices based on the way rugged mobile printers are designed and made. Designing a quality printer begins in analysing the
2. An electronic device manufacturer has experienced an 85% learning curve for similar products and expects the same learning rate to apply to a new model. Let us presume it took 4000 hours to produce the 1st unit and the company wants to estimate how many hours the 50th unit will take.
6. Critically examine the experience curve.
5. Give a perspective on various curves.
4. What are the different application areas of learning curve?
3. Write down the concept of learning curve from single unit data.
2. What is the experience curve? Is there any difference between both these curves?
1. Define the concept of learning curve. How will you plot it?
13. Select True or False (a) The relationship between learning curve and experience curve is, the more the experience at a task, the more is the efficiency. (b) The learning curve shows that there is progressive improvement in productivity but at an increas- ing rate as the number produced
12. __________ curve is plotted for the knowledge component 'select-given-value-reason'. (a) Error rate learning curve (b) Predicted learning curve (c) Assistance score learning curve (d) Learning curve from single-unit data
11. The experience curve can be plotted with cumulative units produced on the horizontal axis and unit cost on the vertical axis, then if a curve that depicts a 15% cost reduction for every doubling of output is called an _________ experience curve. (a) 15% (c) 50% (b) 85% (d) 100%
10. The factor (s) responsible to apply the experience curve and learning curve in most situations is/are: (a) Labour efficiency (c) Value-chain effects (b) Product re-design (d) All of the above
9. Experience curve discontinuities occur when: (a) Competitors introduce new products or processes (b) Technological change (c) Both (a) & (b) (d) None of the above
8. One consequence of the experience curve effect is that cost savings should be passed on as price ________ instead as profit margin ________ . (a) Decreases, Decreases (b) Decreases, Increases (c) Increases, Increases (d) Increases, Decreases
7. In the criticism of experience curve, a strong _______ attribute may negate any learning effect, but a ________ attitude may reinforce the effect. (a) Negative, positive (c) Positive, positive (b) Negative, negative (d) Positive, negative
6. The effort calculated for such curve is the cumulative average for each unit, then this type of curve is known as: (a) Unit curve (c) Cumulative average curve (b) Cumulative total curve (d) None of the above
5. While plotting the learning, the x-axis represents: (a) The consecutive numbers of units produced (b) The time per unit produced (c) Both (a) & (b) (d) None of the above
4. The applications of the learning curve theory include: Unda) Pricing decisions, based on the estimates of expected costs (b) Requirements for scheduling labour (c) Capital budgeting decisions (d) All of the above
3. Learning curves were first described by: (a) Prof. David Garvin (c) T. P. Wright (b) W. Edwards Deming (d) Walter Schewhart
2. Learning curves is/are also known as: (a) Experience curve (c) Efficiency curve (b) Cost curve (d) All of the above
1. Which relates the average cost of production to the cumulative output of production rather than correct output? (a) Enterprise resource planning (c) Square root law (b) Learning curve (d) Postponement principle
2. What steps can be taken to overcome constraints and optimize these factors?Rural aquaculture is referred to as farming of aquatic plants and animals, using technologies adapted to locally available and limited resources of households. The Asian Development Bank (ADB) emphasizes in- creasing
1. What are the main factors that enable rural aquaculture to generate livelihoods and reduce poverty?Rural aquaculture is referred to as farming of aquatic plants and animals, using technologies adapted to locally available and limited resources of households. The Asian Development Bank (ADB)
12. Explain the thinking process and risk management in TOC.
11. What is the drum-buffer-rope method? What do the drums, buffers and ropes represent?
10. Discuss the tools involved in thinking process of theory of constraints.
9. What is throughput? Provide a conceptual definition as well as a calculation.
8. Explain the measurements of theory of constraints.
7. Discuss the significance of TOC in brief.
6. What is TOC and explain its objectives?
5. Explain the different uncertainties and scenario modelling.
4. Define the concept of game theory.
3. How integer programming is an extension of linear programming?
2. Explain the concept of linear programming. What are its different applications?
1. Define the decision-making process. How it is helpful for taking optimum decision in operations man- agement?
12. Select True or False: (a) Throughput accounting is a specific accounting methodology related to the theory of constraints. (b) Linear Programming (LP) is a mathematical procedure for determining optimal allocation of easily available resources. (c) Operating expense is defined as the costs of
11. The solution methods for integer programming can be categorized as: (a) General purpose and special purpose (b) Optimal and heuristic algorithm (c) Both (a) & (b) (d) None of the above
10. In the TOC thinking tools,__________ shows the action that will lead to the fulfillment of a plan. (a) Core conflict cloud (c) Transition tree (b) Current reality tree (d) Strategy & tactics
9. The statement, "The flow is of multiple lines, which then split into many assemblies", belongs to which type of plant in the theory of constraint? (a) I-Plant (c) V-Plant (b) A-Plant (d) T-Plant
8. The statement, "The work is done in a straight sequence of events and the constraint is the slowest operation", belongs to which type of plant in the theory of constraint? (a) I-Plant (c) V-Plant (b) A-Plant (d) T-Plant
7. The 1st step in implementing an effective and efficient TOC approach is: (a) Exploit the constraint (b) Increase bottleneck capacity (c) Subordinate all other processes to the constraint process (d) Identify the constraint
6. In the TOC thinking tools, _______ shows the future sates of the system and helps to identify possible negative outcomes of the changes. (a) Current reality tree (c) Prerequisite tree (b) Future reality tree (d) Transition tree
5. Which statement is correct for the rules to determine batch size in Optimized Production Technology (OPT)? (a) The use of a non-bottleneck resource should be determined (b) Activating a resource is not necessarily the same as utilizing a resource (c) The process batch size should not be fixed
4. _______ can be defined as sales value in rupees subtracted from direct materials in the products sold. (a) Throughput (c) Operating expense (b) Inventory (d) Master production schedule
3. The technique that tries to account for putting safety margins into the problem in the planning stage is called _______ (a) Scenario analysis (c) Monte-carlo approach (b) Worst-case analysis (d) All of the above
2. A solution value for decision variables, provided all of the constraints are satisfied, is called ______ (a) Feasible solution (c) Both (a) & (b) (b) Optimal solution (d) None of the above
1. Optimization modelling process requires which stage (s)? (a) Describe the problem (c) Control the problem (b) Describe the solution (d) All of the above
3. Do you think TOC and Six Sigma complement each other to improve performance? Explain.New Era Corporation is a company dealing in the development of modular systems technology and also in research and development. It is also the largest independent supplier of vehicular components to auto- mobile
2. Can you suggest the continuous improvement is possible by any other method?New Era Corporation is a company dealing in the development of modular systems technology and also in research and development. It is also the largest independent supplier of vehicular components to auto- mobile
1. How was TOC utilized in improving labour utilization?New Era Corporation is a company dealing in the development of modular systems technology and also in research and development. It is also the largest independent supplier of vehicular components to auto- mobile manufacturers. One of its
6. "Operations of a business helps it for becoming a world class manufacturer." How? Explain in detail.
5. What is the role ofe- operations in world class manufacturing?
4. "Product development and innovation is one of the ways to become world class manufacturing." Justify the statement.
3. "Marketing communication plays an important role for world class manufacturing." Explain in detail.
2. How industrial culture should be changed for world class manufacturing?
1. What is the meaning of world class manufacturing? What are its different techniques?
13. Select True or False: (a) Concurrent engineering discipline is used in the development of new products. (b) The first principle behind world class manufacturing is total quality management. (c) Values and beliefs are necessary to set the overall behaviour of the enterprise. (d) Cell
12. ________ is the discipline to be adopted to dominate all inadequacies associated with the traditional "Over-the-Wall" approach. (a) Value engineering (b) Quality function deployment (QFD) (c) Concurrent engineering (d) Project management
10. Principles, values, beliefs and symbos are related to which aspect of world class manufacturing? (a) Market/client area (c) Product development area (b) E-performance area (d) Operations area
9. Which aspect (s) is/are related to world class manufacturing: (a) Industrial culture area (c) Product development area (b) Market/clients area (d) All of the above
8. Six Sigma concept of quality management represents which principle of world class manufacturing? (a) First principle (c) Third principle (b) Second principle (d) None of the above
7. World class manufacturing is a (a) Product driven approach (c) Process driven approach (b) Cell manufacturing approach (d) All of the above
6. Process Re-engineering (a) Is the fundamental rethinking and radical redesign of the business processes (b) Focuses on activities that cross functional lines (c) Tries to bring about dramatic improvements in performance (d) All of the above
5. Computer Integrated Manufacturing (CIM) includes manufacturing systems that have: (a) Robots, automated guided vehicles and transfer equipment (b) Computer aided design, a flexible manufacturing system, inventory control, warehousing and ship- ping integrated (c) Automated guided vehicles and
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