Exam 23: Transportation Models

Find the minimum cost solution for the transportation problem detailed in the table below. Before your solution can be implemented,you discover that the combination Source 3 - Destination 1 is unavailable,due to political turmoil in the country where Source 3 is located.Solve the revised problem.How much is cost increased by this complication?

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Question 1

Correct Answer:

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The first solution is in the first table;cost of this solution is $1,225. The revision is accomplished by assigning the prohibited cell a very high cost,such as $1,000.This solution appears in the second table;its cost is $1,535.The increase in cost is $310.

What does the stepping-stone method do?

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Question 2

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The stepping-stone method is an interactive technique for moving from an initial feasible solution to an optimal solution in the transportation model.

The stepping-stone method frequently achieves an optimal solution as soon as it calculates an initial feasible solution.

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Question 3

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False

In transportation model analysis the stepping-stone method is used to

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Question 4

The information needs of a transportation problem include

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Question 5

A transportation problem with 8 sources and 6 destinations will have an optimal solution that uses at most 13 of the 48 possible routes.

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Question 6

Find the minimum cost solution for the transportation problem detailed in the table below.Explain carefully the meaning of any quantity in a "dummy" row or column.

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Question 7

The larger a transportation problem (that is,as the problem has more rows and more columns),the smaller the fraction of all possible routes that will be filled in a solved problem.Explain.

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Question 8

A large transportation problem has 220 origins and 1360 destinations.The optimal solution of this problem will fill no more than about ________ of cells with quantities to be shipped.

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Question 9

Which of the following combinations of sources and destinations would fill no more than 25% of cells with quantities to be shipped for the optimal solution?

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Question 10

The purpose of the transportation approach for location analysis is to minimize

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Question 11

The transportation model is a special class of linear programming models.

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Question 12

A transportation problem has a feasible solution when

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Question 13

The three information needs of a transportation problem are the origin points and the capacity at each,the destination points and the demand at each,and ________.

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Question 14

Which of the following is not needed in order to use the transportation model?

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Question 15

In a transportation minimization problem,the negative improvement index associated with a cell indicates that reallocating units to that cell would lower costs.

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Question 16

A transportation model fills one-half of its cells under the optimal solution.Which of the following most closely describes the number of sources compared to the number of destinations?

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Question 17

The stepping-stone method

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Question 18

For the problem data set below,what is the northwest corner allocation to the cell Source 1-Destination 1?

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Question 19

The main difference between the intuitive lowest-cost method and the Northwest-corner rule is that

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Question 20

Showing 1 - 20 of 94

Exam 23: Transportation Models

What does the stepping-stone method do?

The stepping-stone method frequently achieves an optimal solution as soon as it calculates an initial feasible solution.

In transportation model analysis the stepping-stone method is used to

The information needs of a transportation problem include

A transportation problem with 8 sources and 6 destinations will have an optimal solution that uses at most 13 of the 48 possible routes.

Find the minimum cost solution for the transportation problem detailed in the table below.Explain carefully the meaning of any quantity in a "dummy" row or column.

The larger a transportation problem (that is,as the problem has more rows and more columns),the smaller the fraction of all possible routes that will be filled in a solved problem.Explain.

A large transportation problem has 220 origins and 1360 destinations.The optimal solution of this problem will fill no more than about ________ of cells with quantities to be shipped.

Which of the following combinations of sources and destinations would fill no more than 25% of cells with quantities to be shipped for the optimal solution?

The purpose of the transportation approach for location analysis is to minimize

The transportation model is a special class of linear programming models.

A transportation problem has a feasible solution when

The three information needs of a transportation problem are the origin points and the capacity at each,the destination points and the demand at each,and ________.

Which of the following is not needed in order to use the transportation model?

In a transportation minimization problem,the negative improvement index associated with a cell indicates that reallocating units to that cell would lower costs.

A transportation model fills one-half of its cells under the optimal solution.Which of the following most closely describes the number of sources compared to the number of destinations?

The stepping-stone method

For the problem data set below,what is the northwest corner allocation to the cell Source 1-Destination 1?

The main difference between the intuitive lowest-cost method and the Northwest-corner rule is that

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