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Multiple Choice Quiz
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1
The transportation problem involves identifying a minimum-cost distribution plan.
A)True
B)False
2
Supply and demand are constraints in the transportation model.
A)True
B)False
3
The number of origins and the number of destinations in a transportation problem must be equal.
A)True
B)False
4
Unit shipping costs are the coefficients of the objective function.
A)True
B)False
5
Total supply and total demand are equal in a transportation model.
A)True
B)False
6
There is one constraint for each supply location and one constraint for each demand location.
A)True
B)False
7
In a transportation table, the rows represent demand and the columns represent supply.
A)True
B)False
8
The transportation model assumes that items to be shipped are homogeneous.
A)True
B)False
9
If a quantity is assigned to a dummy destination if can be shipped at zero cost per unit.
A)True
B)False
10
Unit shipping costs may be nonlinear, but all other values are assumed to be linear.
A)True
B)False
11
The transportation model has applications besides location problems.
A)True
B)False
12
A dummy origin is used when
A)unit shipping cost is zero.
B)an alternate optimal solution occurs.
C)total supply is less than total demand.
D)the quantity of supply of an origin is unknown.
13
Which one is not an assumption of the transportation model?
A)All items are the same, regardless of their source.
B)Unit shipping costs are the same regardless of the quantity shipped.
C)There is only one mode of transportation between a given origin and destination.
D)Both a dummy origin and a dummy destination may be needed to equate supply and demand.
14
Manual solution of a transportation problems involves evaluating
A)completed cells.
B)empty cells.
C)all cells.
D)all cells except dummy cells if there are any.
15
In a manual solution, an alternate optimal solution exists when a cell evaluation is
A)zero.
B)positive.
C)negative.
D)cannot be determined.
16
Changing a unit cost of a cell will change the total cost of a solution
A)not necessarily.
B)always.
C)never.
17
In which case would the transportation model not be used?
A)unit shipping costs are all equal within a row.
B)there is only a single source of supply, and supply and demand are equal.
C)total supply does not equal total demand.
D)the number of rows and columns is not equal.
18
Manual techniques for identifying an optimal solution involve but
A)evaluating empty cells.
B)an iterative process.
C)progressive improvements in solutions.
D)elimination of unimportant variables.
19
Unless a solution is degenerate, the number of occupied cells in a transportation table must equal:
A)the number of rows plus the number of columns.
B)the number of rows times the number of columns.
C)the number of rows plus the number of columns minus one.
D)none of these.
20
Which one is not a solution technique for a transportation problem?
A)northwest corner method
B)VAM
C)computer solution
D)transportation table





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