Decision Science | Chapter 4 | Part 3 | MBA MCQs | DS

Decision Science MCQs

  

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1. The minimum number of lines covering all zeros in a reduced cost matrix of order n can be _____.
   1.   at the most n
   2.   n-1
   3.   n+1
   4.   at the least n
2. Identify the correct statement
   1.   an assignment problem with m rows and n columns will involves a total of m x n possible
      assignments
   2.   an assignment problem may require the introduction of both dummy row and dummy column
   3.   an unbalanced assignment is one where the number of rows is more than, or less than the number of
      columns
   4.   balancing any unbalanced assignment problem involves adding one dummy row or column
3. The calling population is assumed to be infinite when______.
   1.   arrivals are independent of each other
   2.   service rate is faster than arrival rate
   3.   all customers arrive at once
   4.   capacity of the system is infinite
4. The difference between free float and tail event slack is ______
   1.   interference float
   2.   independent float
   3.   total float
   4.   slack
5. The assignment problem is a special case of transportation problem in which ______.
   1.   number of origins equals the number of destinations
   2.   number of origins are less than the number of destinations
   3.   number of origins are greater than the number of destinations
   4.   number of origins are greater than or equal to the number of destinations
6. The calling population is considered to be infinite when ________.
   1.   arrivals are independent of each other
   2.   all customers arrive at once
   3.   service rate is faster than arrival rate
   4.   capacity of the system is infinite
7. If there is no non-negative replacement ratio in solving a Linear Programming Problem then the
   solution is ____.
   1.   bounded
   2.   unbounded
   3.   infinite
   4.   feasible
8. A degenerate solution is one that ________.
   1.   gives zero value to one or more of the basic variables
   2.   yields more than one way to achieve the objective
   3.   gives an optimum solution to the Linear Programming Problem
   4.   makes use of all the available resources
9. In time cost trade off function analysis_________.
   1.   cost decreases linearly as time increases
   2.   cost increases linearly as time increases
   3.   cost at normal time is zero
   4.   cost increases linearly as time decreases
10. The problem of replacement is felt when job performing units fail_____.
    1.   suddenly and gradually
    2.   gradually
    3.   neither gradually nor suddenly
    4.   suddenly
11. Replace an item when________.
    1.   average cost upto date is equal to the current maintenance cost
    2.   next year running cost in more than average cost of nth year
    3.   average cost upto date is less than the current maintenance cost.
    4.   average cost upto date is greater than the current maintenance cost
12. The group replacement policy is suitable for identical low cost items which are likely to_________.
    1.   be progressive and retrogressive
    2.   fail suddenly
    3.   fail over a period of time
    4.   fail completely and suddenly
13. If an activity has zero slack, it implies that_________.
    1.   it lies on the critical path
    2.   the project is progressing well
    3.   it lies a non critical path
    4.   it is a dummy activity
14. The objective of network analysis is to___________.
    1.   minimize total project duration
    2.   maximize total project duration
    3.   minimize production delays, interruption and conflicts
    4.   minimize toal project cost
15. The transportation problem is balanced, if _______.
    1.   number of sources matches with number of destinations
    2.   total demand equals total supply irrespective of the number of sources and destinations
    3.   total demand and total supply are equal and the number of sources equals the number of destinations.
    4.   none of the routes is prohibited
16. Service mechanism in a queuing system is characterized by_____.
    1.   customers in the system
    2.   customers behavior
    3.   server in the system
    4.   servers behavior
17. The transportation problem deals with the transportation of ________.
    1.   a multi -product from several sources to several destinations
    2.   a single product from several sources to a destination
    3.   single product from a source to several destinations
    4.   a single product from several sources to several destinations
18. In program evaluation review technique network each activity time assume a beta distribution
    because_________.
    1.   it need not be symmetrical about model value
    2.   it has got finite non-negative error
    3.   it is a unimodal distribution that provides information regarding the uncertainty of time estimates of
       activities
    4.   the project is progressing well
19. Priority queue discipline may be classified as__________.
    1.   pre-emptive or non-pre-emptive
    2.   finite
    3.   limited
    4.   unlimited
20. Float analysis is useful for________.
    1.   free float
    2.   independent float
    3.   variance of each float
    4.   total float