MBA : operations research : Transportation Problem Online Test

A closed path has all the following characteristics except:
It links an unused square with itself
Movements on the path may occur horizontally, vertically, or diagonally
The corners of the path must all be stones, except for the corner at the unused square being evaluated
The path may skip over unused squares or stones
Degeneracy occurs in a transportation problem when
Demand exceeds supply
When exactly one used cell becomes unused while moving items to a currently used cell
When less than m + n – 1 cells are used
None of the above
An unbalanced transportation problem is the one in which
The number of jobs are not equal to number of facilities
The total supply is not equal to total requirement
The total supply is same as total requirement
None of the above
The MODI method uses the stepping stone path
To calculate the marginal cost of unused cells
To determine how many items to allocate to the selected unused cell
To determine the values of the row and column indexes
None of the above
The maximum number of items that can be allocated to an unused route with the stepping stone algorithm is
The maximum number in any cell
The minimum number in any cell
The minimum number in an increasing cell
The minimum number in a decreasing cell on the stepping- stone path for that route
In Vogel’s approximation method, the opportunity cost associated with a row is determined by :
The difference between the smallest cost and the next smallest cost in that row
The difference between the smallest unused cost and the next in that row
The difference between the smallest cost and the next smallest unused cost in the row
None of the above
The North West Corner rule
Is used to find an initial feasible solution
Is used to find optimal solution
Is based on the concept of minimizing opportunity cost
None of the above
During an iteration while moving from one solution to the next, degeneracy may occur when
The close path indicates a diagonal move
Two or more occupied cells are on the closed path but neither of them represents a corner of the path
Two or more occupied cells on the closed path with minus sign are tied for lowest circled value
Either of the above
If we were to use opportunity cost value for an unused cell to test optimality, it should be
Equal to zero
Most negative number
Most positive number
Any value
An unoccupied cell in the transportation method is analogous to a
Cj – Zj value in the simplex method
Variable in the B-column in the simplex method
Variable not in the B-column in the simplex method
Value in the B-column in the simplex method
The calculations of opportunity cost in the MODI method is analogous to a
Cj – Zj value in the non-basic variable columns in the simplex method
Value of a variable in XB column of the simplex method
Variable in the B- column in the simplex method
None of the above
The solution to a transportation problem with m rows (supplies) and n-columns (destination) is feasible if numbers of positive allocations are
m + n
m * n
m + n – 1
m + n + 1
One disadvantage of using North-West Corner Rule to find initial solution to the transportation problem is that
It is complicated to use
It does not take into account cost of transportation
It leads to a degenerate initial solution
All of the above
An alternative optimal solution to a minimization transportation problem exists whenever opportunity cost corresponding to unused route of transportation is:
Positive and greater than zero
Positive with at least one equal to zero
Negative with at least one equal to zero
None of the above
The occurrence of degeneracy while solving a transportation problem means that
Total supply equals total demand
The solution so obtained is not feasible
The few allocations become negative
None of the above
The dummy source or destination in a transportation problem is added to
Satisfy rim conditions
Prevent solution from becoming degenerate
Ensure that total cost does not exceed a limit
None of the above
The initial solution of a transportation problem can be obtained by applying any known method. However, the only condition is that
The solution be optimal
The rim conditions are satisfied
The solution not be degenerate
All of the above
Description:

This paper has 17 questions which are required to be finished within 20-25 minutes.

Discussion

Ishan Sain

The solution to a transportation problem with m - row and n - columns is feasible if number of positive allocations are

167 days 1 hours 29 minutes ago

AYIBU JIBRIN

THE MOST LUCRATIVE JOB IS SELFEMPLOY.GET RAPID ECONOMICS DEVELOPMENT IS TO LIVE A SIMPLE AND SHARE WHATEVER WITH OTHERS

1441 days 6 hours 46 minutes ago

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