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production and operations management
Production And Operations Management 3rd Edition Panneerselvam - Solutions
Type I error is the probability of a good lot.(a) Accepting (b) Rejecting(c) Both (a) and (b) (d) None of the above AppendixLO1
The other name of Type I error is risk.(a) Producer's (b) Consumer's(c) Employee's (d) None of the above.AppendixLO1
The other name of Type II error is (a) Producer's (c) Employee's risk. (b) Consumer's (d) None of the above AppendixLO1
AQL means(a) Average quality level(c) Arithmetic quality level AppendixLO1
LTPD means(a) Least total performance domain(c) Lot tolerance per cent defectives AppendixLO1
The range between(a) AQL and LTPD(c) Producer's risk and consumer's risk(b) Acceptable quality level(d) None of the above(b) Large total performance domain(d) None of the above is called indifference quality zone.(b) Type I error and Type II error(d) None of the above AppendixLO1
Operating characteristic curve is associated with(a) P-chart (b) C-chart(c) Sampling plan (d) None of the above AppendixLO1
In single sampling plan, the output will contain(a) a and 13 (b) Type I error and Type II error(c) n and C (d) LTPD and AQL AppendixLO1
In double sampling plan, the design will give different values to implement the plan.(a) 4 (b) 5(c) 6 (d) None of the above AppendixLO1
In double sampling plan, n2 will be compared with the(a) Number of defective pieces in the first sample(b) Number of defective pieces in the second sample(c) Number of defective pieces in the first sample and the second sample(d) None of the above AppendixLO1
is used for double sampling plan.(a) Mil Std-101D (b) Mil Std-103D(c) Mil Std-105D (d) None of the above AppendixLO1
Mil Std-105D uses levels under special inspection level.(a) 2 (b) 3(c) 4 (d) None of the above AppendixLO1
Mil Std-105D uses levels under general inspection level.(a) 2 (b) 3(c) 4 (d) None of the above.AppendixLO1
are the parameters to locate the design details of double sampling plan in Mil Std-105D.(a) Producer's risk and consumer's risk(b) Sample size code letter and acceptable quality level(c) Sample size code letter and LTPD(d) None of the above AppendixLO1
In the nomogram to design a single sampling plan, on the left vertical scale, are marked.(a) Producer's risk and consumer's risk (b) AQL and LTPD(c) AQL and Type I error (d) LTPD and Type II error AppendixLO1
In the nomogram to design a single sampling plan, on the right vertical scale, are marked.(a) 1 — a and 13 (b) AQL and LTPD(c) AQL and Type I error (d) LTPD and Type II error AppendixLO1
One of the lines is drawn by connecting of the nomogram to design a single sampling plan.(a) AQL in the right scale and 1 — a on the left scale(b) LTPD in the right scale and p on the left scale(c) AQL in the left scale and 1 — a on the right scale(d) None of the above AppendixLO1
One of the lines is drawn by connecting of the nomogram to design a single sampling plan.(a) AQL in the right scale and 1 — a on the left scale(b) LTPD in the left scale and p on the right scale(c) LTPD in the right scale and p on the left scale(d) None of the above AppendixLO1
The intersection of the two lines drawn in the nomogram to design the single sampling plan will give(a) 1 — a and 13 (b) AQL and LTPD(c) AQL and Type I error (d) n and C AppendixLO1
The lines extending from top right corner towards bottom left corner of the nomogram to design a single sampling plan correspond to(a) Rejection numbers (b) Acceptance numbers(c) Neutral numbers (d) None of the above.AppendixLO1
Discuss the need for controlling quality of goods and services.AppendixLO1
How would you classify quality control techniques?AppendixLO1
What do you mean by process capability?AppendixLO1
Discuss the steps in constructing k and R charts.AppendixLO1
The following data were obtained over a 5 day period to indicate k and R control chart for a quality characteristic of a certain manufacturing product that had required a substantial amount of rework. All the figures apply to the product made on a single machine by a single operator.The sample size
Two samples were taken per day. Comment on the process using k and R charts.Sample Number Observations 1 2 3 4 5 1 11 12 13 10 9 2 6 10 10 11 9 3 11 12 9 12 10 4 14 10 8 13 11 5 12 11 11 10 7 6 11 10 10 12 11 7 10 12 13 13 12 8 10 11 11 10 12 9 12 13 11 12 10 10 11 13 9 9 12 AppendixLO1
The following data were obtained over a 5 day period to indicate k and R control chart for a quality characteristic of a certain manufacturing product that had required a substantial amount of rework. All the figures apply to the product made on a single machine by a single operator.The sample size
Beta electronic company manufactures resistors on mass production basis. At some intermediate point of production line, 10 samples of size 100 each have been taken. Resistors within each sample were classified into good or bad. The related data are given in the following table. Construct a P-chart
Alpha electronic company manufactures cathode ray tubes on mass production basis. At some intermediate point of production line, 10 samples of size 25 each have been taken. Tubes within each sample were classified into good or bad. The related data are given in the following table.Construct a
The following table gives the number of defects in a casting used for making crank case of a diesel engine.Casting No. 1 2 3 4 5 6 7 8 9 10 Number of Defects (c) 15 11 25 10 12 20 15 10 17 13 Construct a C-Chart with 3 sigma limits and comment on the casting process.AppendixLO1
The following table gives the number of missing rivets noted in a newly fabricated car. Construct a suitable control chart for the given data and comment on the process.Car No. 1 2 3 4 5 6 7 8 9 10 Number of Missing Rivets 10 12 18 15 9 20 11 10 16 8 AppendixLO1
Distinguish between 100% inspection and acceptance sampling.AppendixLO1
Explain the O.C. curve with all its parameters.AppendixLO1
Design a single sampling plan with the following parameters. Producer's risk (a) = 0.04;Consumer's risk (/3) = 0.08; Acceptable quality level (AQL) = 0.03 and Lot tolerance per cent defectives(LTPD) = 0.10.AppendixLO1
Rework Question 13 using the nomogram method.AppendixLO1
Design a single sampling plan with the following parameters.Producer's risk (a) = .03; Consumer's risk (/3) = 0.10; Acceptable quality level (AQL) = 0.04 and Lot tolerance per cent defectives (LTPD) = 0.08.AppendixLO1
Rework Question 15 using nomogram method.AppendixLO1
Design a single sampling plan with the following parameters. Producer's risk (a) = 0.05;Consumer's risk (p). 0.10; Acceptable quality level (AQL) = 0.04 and Lot tolerance per cent defectives(LTPD) = 0.10.AppendixLO1
Assume a lot of size 4000 units and a desired AQL of 2.5%. Design a double sampling plan.AppendixLO1
Assume a lot of size 2000 units and a desired AQL of 1.5%. Design a double sampling plan.AppendixLO1
A company manufacturing crank case is interested in controlling the weight of crank cases. For better operational performance, slight under weight, if exists due to process variance, may be tolerable. The company would like all crank cases to have a mean weight of 250 kg or less. The company wants
Define Six Sigma. Also, list its objective.AppendixLO1
Distinguish between DMAIC and DMADV.AppendixLO1
Explain the steps of DMAIC.AppendixLO1
Explain the steps of DMADV.AppendixLO1
Write short notes on the following Six Sigma belts:(a) Green belts(b) Black belts(c) Master black belts AppendixLO1
What is Six Sigma champion?AppendixLO1
What are the benefits of Six Sigma.AppendixLO1
Distinguish between aggregate planning and master production scheduling.AppendixLO1
What is master production scheduling? Explain it with an example.AppendixLO1
A production manager is faced with the problem of job allocation between his two production teams. The production rate of the team X is 8 units per hour, while the production rate of team Y is 5 units per hour. The normal working hours for both teams are 40 hours per week. The production manager
Beta company produces two kinds of fancy products—table lamp and key chain. Production of either a table lamp or key chain requires 0.5 hour of production capacity in the plant. The plant has a maximum production capacity of 15 hours per week. Because of the limited sales capacity, the maximum
The following data were obtained from Joyce manufacturing company. Using the linear programming model, find the optimal production and work force levels. Backorders are not allowed.Demand data: DI = 350 units, D2 = 375 units, D3 = 325 units Capacity Data:Regular time capacity: M1 = 250, M2 = 200,
The following data were obtained from Beta manufacturing company. Using the linear programming model, find the optimal production. Backorders are not allowed.Demand data: DI = 200 units, D2 = 250 units, D3 = 400 units.Capacity Data:Regular time capacity: M1 = 220, M2 = 325, M3 = 125 Overtime
The forecast for a group of items manufactured in a firm is shown below.Quarter 1 2 3 4 5 6 7 8 Demand 420 370 620 720 600 200 300 400 The firm estimates that it costs Z 225 per unit to increase the production rate, Z 275 per unit to decrease the production rate, Z 80 per unit per quarter to carry
The forecast for a group of items manufactured in a firm is shown below.Quarter 1 2 3 4 5 6 7 8 Demand 370 320 570 670 550 370 350 480 The firm estimates that it costs Z 200 per unit to increase the production rate, Z 250 per unit to decrease the production rate, Z 75 per unit per quarter to carry
Beta associates produces accounting machine that have a seasonal demand pattern. We are required to plan for the optimum production rates and inventory levels for the next four quarter periods. The available production capacities during regular time and overtime, as well as other cost data are as
List and explain various pure strategies and mixed strategies.AppendixLO1
What do you mean by aggregate planning?AppendixLO1
is product-wise scheduling.(a) Aggregate planning (b) Master production scheduling(c) Both (a) and (b) (d) None of the above 15 Master production scheduling gives top level input to(a) Assembly line balancing (b) Layout design(c) MRP (d) None of the above AppendixLO1
Cut-and-Fit method is used for(a) Aggregate planning (b) Master production scheduling(c) Both (a) and (b) (d) None of the above AppendixLO1
Master production scheduling and aggregate planning will be one and the same, if the number of products in the planning is(a) One (b) Two(c) Many (d) None of the above AppendixLO1
aims to minimise the combined costs of regular payroll, hiring and firing, overtime and inventory using four approximate cost functions.(a) Linear decision rule (b) Nonlinear decision rule(c) Curvilinear decision rule (d) None of the above AppendixLO1
The cost for the cell in the transportation model of aggregate planning will be if the period shown in the row of the cell is less than the period shown in the column of the cell, with no backordering.(a) 0 (b) co(c) 1 (d) None of the above AppendixLO1
The next planning period beginning inventory is to be added to demand of of the current planning period of aggregate planning.(a) First period (b) Last period(c) Each period (d) None of the above AppendixLO1
model can be used to map the aggregate planning problem.(a) Assignment (b) Transportation(c) Both (a) and (b) (d) None of the above AppendixLO1
In changing inventory levels strategy of aggregate planning, the inventory is adjusted with the values of the inventory before adjustment.(a) Minimum of the negative (b) Minimum of the positive(c) Maximum of the negative (d) None of the above AppendixLO1
In period.(a) Sub-contracting(c) Changing inventory levels(b) Hiring and firing(d) None of the above strategy of aggregate planning, the production level varies from period to AppendixLO1
In the pure strategy of sub-contracting of aggregate planning, the production level is set to(a) Average of demand (b) Maximum demand(c) Minimum demand (d) None of the above.AppendixLO1
In the pure strategy of changing inventory levels of aggregate planning, the production level is set to(a) Average of demand (b) Maximum demand(c) Minimum demand (d) None of the above AppendixLO1
The planning period of aggregate planning ranges from(a) 1 year to 3 years (b) 3 years and above(c) 3 months to 1 year (d) None of the above AppendixLO1
aims to find the best combination of various available capacities to match with the resource requirements in a given planning period at the most economical cost.(a) Master production scheduling (b) Aggregate planning(c) Flow shop scheduling (d) None of the above AppendixLO1
is a process that follows capacity planning.(a) Aggregate planning (b) Master production scheduling(c) Job shop scheduling (d) None of the above AppendixLO1
What is SDE analysis?AppendixLO1
Discuss the combined analysis of ABC and VED analyses.AppendixLO1
Explain VED analysis.AppendixLO1
Illustrate the construction of fields matrix which combines ABC and XYZ analyses with a suitable example.AppendixLO1
Explain the steps of XYZ analysis.AppendixLO1
Define XYZ analysis. Distinguish it from FSN analysis.AppendixLO1
Discuss the bases for selection of suppliers for tender lists for public sector buyers.AppendixLO1
Discuss the characteristics of good suppliers.AppendixLO1
List the requirements of public sector buyers.AppendixLO1
What is competitive dialogue? Discuss its steps.AppendixLO1
What is negotiated tender? Discuss its types.AppendixLO1
What is open tender? Discuss its types.AppendixLO1
What is restricted tender? Discuss its steps.AppendixLO1
List and briefly explain the types of tender.AppendixLO1
What is tendering?AppendixLO1
What is purchase order?AppendixLO1
Define agreement. List and explain its types.AppendixLO1
What is indefinite delivery contract? Explain its features.AppendixLO1
Define letter contract and state the situations for which it is applied.AppendixLO1
What is time and material contract?AppendixLO1
List and explain the variations of fixed price contract.AppendixLO1
What are the types of contract? Explain them in brief.AppendixLO1
Illustrate the steps of AHP with a small problem.AppendixLO1
Alpha Associates undertook a project to setup a paper factory for Beta Incorporation. As a part of the project, the Alpha associate has to procure a costly machine and install in the factory. The criteria on which the machine is to be evaluated are as listed below.• Price• Safety•
Assume an example of your choice with three vendors and four criteria. Give the hierarchy of the criteria along with alternative namely vendors.AppendixLO1
Discuss the components of The Saaty Rating Scale.AppendixLO1
What is AHP?AppendixLO1
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