Question 1

Which of the following is not a constraint found in a transshipment model?

Accepted Answer

A)  Constraints that ensure that the sum of units from all warehouses delivered to stores is greater than or equal to the demands in each destination 
B)  Constraints that ensure that the sum of units to all warehouses originating from each plant is less than or equal to the available units in that plant 
C)  Constraints that ensure that the amount of units entering each warehouse is equal to the amount of units leaving the warehouse 
D)  Constraints that ensure that the sum of units from all warehouses delivered to stores is less than or equal to the demands in each destination 
E)  Non-negativity constraints 
A)  Constraints that ensure that the sum of units from all warehouses delivered to stores is greater than or equal to the demands in each destination 
B)  Constraints that ensure that the sum of units to all warehouses originating from each plant is less than or equal to the available units in that plant 
C)  Constraints that ensure that the amount of units entering each warehouse is equal to the amount of units leaving the warehouse 
D)  Constraints that ensure that the sum of units from all warehouses delivered to stores is less than or equal to the demands in each destination 
E)  Non-negativity constraints D

Question 2

Decision variables for the transportation model can be defined as the amount of units to be transported from a given source to a given destination during the planning period.

Accepted Answer

A) True 
 B)False  True

Question 3

When the total supply of the product generated by all sources equals the total demand consumed by all destinations, then transportation constraints can be formulated as equality constraints.

Accepted Answer

A) True 
 B)False  True

Question 4

Which of the following layers is part of a transportation model?

Accepted Answer

A)  Sources 
B)  Destinations 
C)  Both a and b 
D)  Neither a nor b 
A)  Sources 
B)  Destinations 
C)  Both a and b 
D)  Neither a nor b

Question 5

Which of the following statements is true when comparing the Microsoft Excel templates of the transportation model to the Microsoft Excel template of the transshipment model?

Accepted Answer

A)  The objective function cell in the transportation model contains the value of one scalar product, while the objective function in the transshipment model has two scalar products. 
B)  The value of objective function of the transportation model is always greater than the value of the objective function in the transshipment model. 
C)  The decision maker always seeks to minimize the cost in the transportation model, yet may seek to optimize the cost in the transshipment model. 
D)  All of the above 
A)  The objective function cell in the transportation model contains the value of one scalar product, while the objective function in the transshipment model has two scalar products. 
B)  The value of objective function of the transportation model is always greater than the value of the objective function in the transshipment model. 
C)  The decision maker always seeks to minimize the cost in the transportation model, yet may seek to optimize the cost in the transshipment model. 
D)  All of the above

Question 6

Which of the following is not a source layer in the transportation model?

Accepted Answer

A)  Machines 
B)  Plants 
C)  Cities 
D)  Warehouses 
E)  All of the above can serve as source layer in the transportation model. 
A)  Machines 
B)  Plants 
C)  Cities 
D)  Warehouses 
E)  All of the above can serve as source layer in the transportation model.

Question 7

The modeler can assign a very high value to the shipment cost for the units originating from:

Accepted Answer

A)  Dummy destinations. 
B)  Dummy sources. 
C)  Original destinations. 
D)  Original sources. 
A)  Dummy destinations. 
B)  Dummy sources. 
C)  Original destinations. 
D)  Original sources.

Question 8

Which of the following is an element of network diagrams used to represent shipment models?

Accepted Answer

A)  Nodes 
B)  Decision variables 
C)  The objective function 
D)  All of the above 
A)  Nodes 
B)  Decision variables 
C)  The objective function 
D)  All of the above

Question 9

The transportation model is always constructed with a minimization objective function.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is not a destination layer in the transportation model?

Accepted Answer

A)  Machines 
B)  Warehouses 
C)  Cities 
D)  All of the above can serve as source layer in the transportation model. 
A)  Machines 
B)  Warehouses 
C)  Cities 
D)  All of the above can serve as source layer in the transportation model.

Question 11

Any value assigned to the dummy source row as part of the final solution is considered to be unmet demand.

Accepted Answer

A) True 
 B)False

Question 12

The transshipment model is an extension of the transportation model.

Accepted Answer

A) True 
 B)False

Question 13

The objective function of the transshipment models represents:

Accepted Answer

A)  The scalar product of quantities shipped from a given plant to a given warehouse with their respective transportation costs per unit. 
B)  The scalar product of quantities shipped from a given warehouse to a given retail store with their respective transportation costs per unit. 
C)  The sum of two scalar products indicated in a and b above. 
D)  None of the above represents the objective function of the transshipment models. 
A)  The scalar product of quantities shipped from a given plant to a given warehouse with their respective transportation costs per unit. 
B)  The scalar product of quantities shipped from a given warehouse to a given retail store with their respective transportation costs per unit. 
C)  The sum of two scalar products indicated in a and b above. 
D)  None of the above represents the objective function of the transshipment models.

Question 14

Which of the following is a notable characteristic of the transportation model?

Accepted Answer

A)  The objective function seeks to minimize the overall transportation cost. 
B)  Technological coefficients are equal to one. 
C)  Contribution coefficients are equal to one. 
D)  Constraints are always expressed as equality constraints. 
A)  The objective function seeks to minimize the overall transportation cost. 
B)  Technological coefficients are equal to one. 
C)  Contribution coefficients are equal to one. 
D)  Constraints are always expressed as equality constraints.

Question 15

Which of the following statements is true when comparing the Solver setup of the transportation model to the setup of the transshipment model?

Accepted Answer

A)  The "By Changing Variable Cells" box of the transportation model has one set of decision variables, while the transshipment model has two sets of variables. 
B)  The transportation model has one set of constraints, while the transshipment model has two sets of constraints. 
C)  As in the transportation model, there is a third constraint in the transshipment model that ensures that, for each warehouse, the amount of units received from plants equals the units delivered to retail stores. 
D)  All of the above 
A)  The "By Changing Variable Cells" box of the transportation model has one set of decision variables, while the transshipment model has two sets of variables. 
B)  The transportation model has one set of constraints, while the transshipment model has two sets of constraints. 
C)  As in the transportation model, there is a third constraint in the transshipment model that ensures that, for each warehouse, the amount of units received from plants equals the units delivered to retail stores. 
D)  All of the above

Question 16

Regarding the demand constraints of the transportation model, the shadow price indicates how much it will cost to ship a marginal container:

Accepted Answer

A)  To a respective destination. 
B)  From a given source. 
C)  From a given source to a respective destination. 
D)  Any of the above 
A)  To a respective destination. 
B)  From a given source. 
C)  From a given source to a respective destination. 
D)  Any of the above

Question 17

In a network diagram, nodes can represent:

Accepted Answer

A)  Sources. 
B)  Destinations. 
C)  Either a source or a destination. 
D)  Neither a source nor a destination. 
A)  Sources. 
B)  Destinations. 
C)  Either a source or a destination. 
D)  Neither a source nor a destination.

Question 18

The transshipment model seeks to minimize the total transportation cost:

Accepted Answer

A)  From plants to warehouses. 
B)  From warehouses to retail stores. 
C)  Both a and b 
D)  Neither a nor b 
A)  From plants to warehouses. 
B)  From warehouses to retail stores. 
C)  Both a and b 
D)  Neither a nor b

Question 19

The objective function of the transportation model may seek to maximize an objective function, which can be calculated as:

Accepted Answer

A)  The scalar product of the quantities shipped from a given source to a given destination and their respective profits per units. 
B)  The sum of the profits per unit from a given source to a given destination. 
C)  The sum of the total profit from a given source to a given destination. 
D)  All of the above 
A)  The scalar product of the quantities shipped from a given source to a given destination and their respective profits per units. 
B)  The sum of the profits per unit from a given source to a given destination. 
C)  The sum of the total profit from a given source to a given destination. 
D)  All of the above

Question 20

A transportation model usually consists of two layers, while transshipment models include one or no layers.

Accepted Answer

A) True 
 B)False

Which of the following is not a constraint found in a transshipment model?

Decision variables for the transportation model can be defined as the amount of units to be transported from a given source to a given destination during the planning period.

When the total supply of the product generated by all sources equals the total demand consumed by all destinations, then transportation constraints can be formulated as equality constraints.

Which of the following layers is part of a transportation model?

Which of the following statements is true when comparing the Microsoft Excel templates of the transportation model to the Microsoft Excel template of the transshipment model?

Which of the following is not a source layer in the transportation model?

The modeler can assign a very high value to the shipment cost for the units originating from:

Which of the following is an element of network diagrams used to represent shipment models?

The transportation model is always constructed with a minimization objective function.

Which of the following is not a destination layer in the transportation model?

Any value assigned to the dummy source row as part of the final solution is considered to be unmet demand.

The transshipment model is an extension of the transportation model.

The objective function of the transshipment models represents:

Which of the following is a notable characteristic of the transportation model?

Which of the following statements is true when comparing the Solver setup of the transportation model to the setup of the transshipment model?

Regarding the demand constraints of the transportation model, the shadow price indicates how much it will cost to ship a marginal container:

In a network diagram, nodes can represent:

The transshipment model seeks to minimize the total transportation cost:

The objective function of the transportation model may seek to maximize an objective function, which can be calculated as:

A transportation model usually consists of two layers, while transshipment models include one or no layers.

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Exam 7: Business Analytics With Shipment Models

Which of the following is not a constraint found in a transshipment model?

Decision variables for the transportation model can be defined as the amount of units to be transported from a given source to a given destination during the planning period.

When the total supply of the product generated by all sources equals the total demand consumed by all destinations, then transportation constraints can be formulated as equality constraints.

Which of the following layers is part of a transportation model?

Which of the following statements is true when comparing the Microsoft Excel templates of the transportation model to the Microsoft Excel template of the transshipment model?

Which of the following is not a source layer in the transportation model?

The modeler can assign a very high value to the shipment cost for the units originating from:

Which of the following is an element of network diagrams used to represent shipment models?

The transportation model is always constructed with a minimization objective function.

Which of the following is not a destination layer in the transportation model?

Any value assigned to the dummy source row as part of the final solution is considered to be unmet demand.

The transshipment model is an extension of the transportation model.

The objective function of the transshipment models represents:

Which of the following is a notable characteristic of the transportation model?

Which of the following statements is true when comparing the Solver setup of the transportation model to the setup of the transshipment model?

Regarding the demand constraints of the transportation model, the shadow price indicates how much it will cost to ship a marginal container:

In a network diagram, nodes can represent:

The transshipment model seeks to minimize the total transportation cost:

The objective function of the transportation model may seek to maximize an objective function, which can be calculated as:

A transportation model usually consists of two layers, while transshipment models include one or no layers.

Business Analytics With Management Science

Introduction to Linear Programming

Business Analytics With Linear Programming

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Business Analytics With Goal Programming

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