1. ________are entities whose value is determined from the solution of LPP
Correct : A. objective function
2. The region of feasible solution in LPP graphical method is called ____
Correct : D. feasible region
3. The outgoing variable row in the simplex table is called ____
Correct : C. basic row
4. When the solution is degenerate in transportation problem, we add a _
Correct : B. epsilon
5. ______method is used in Assignment Problem
Correct : D. hungarian
6. The longest path in the network diagram is called ____
Correct : C. critical path
7. IF the Minimax are ( 10,18,16) and Maximin are (8,10,7). The saddle point is ___
Correct : B. 10
8. Pick the wrong relationship:
Correct : B. total float =free float + independent float
9. The shortest time in the PERT is called ______time
Correct : C. optimistic
10. The total time required to complete all the jobs in a job sequence problem is known as ______
Correct : D. elapsed time
11. Operations Research Models in which values of all variables and all possible outcomes are known with certainty are called models.
Correct : C. deterministic
12. Operations Research Models in which some or all variables are random in nature are called models.
Correct : D. probabilistic
13. and are techniques applied in project management.
Correct : A. cpm and pert
14. are the entities whose values are to be determined from the solution of the LPP.
Correct : B. decision variables
15. specifies the objective or goal of solving the LPP.
Correct : A. objective function
16. _are the restrictions or limitations imposed on the LPP.
Correct : C. constraints
17. When it is not possible to find solution in LPP, it is called as solution
Correct : A. infeasible
18. In case of a ‘ ’ constraint, the feasible region is a straight line.
Correct : D. equal to
19. In linear programming, unbounded solution means solution.
Correct : B. infinite
20. The incoming variable column in the simplex algorithm is called .
Correct : A. key column
21. The intersection value of key column and key row is called
Correct : D. key element
22. The variable added to the LHS of a less than or equal to constraint to convert it into equality is called variable.
Correct : C. slack
23. A resource which is completely utilized is called in simplex
Correct : B. scarce resource
24. In simplex, a minimization problem is optimal when all Delta J, i.e. Cj – Zj values are .
Correct : A. either zero or positive
25. To find initial feasible solution of a transportation problem the method which starts allocation from the lowest cost is called method
Correct : C. lcm
26. When the total of allocations of a transportation problem match with supply and demand values, the solution is called solution.
Correct : B. feasible solution
27. When the allocations of a transportation problem satisfy the rim condition (m + n – 1) the solution is called
Correct : C. non degenerate solution
28. Which of the following considers difference between two least costs for each row and column while finding initial basic feasible solution in transportation?
Correct : A. vam
29. If the number of rows and columns in an assignment problem are not equal than it is called problem.
Correct : B. unbalanced
30. The method used for solving an assignment problem is called method.
Correct : D. hungarian
31. When a maximization assignment problem is converted in minimization problem, the resulting matrix is called matrix.
Correct : B. regret
32. The longest path in the network diagram is called path
Correct : A. critical
33. Backward pass calculations are done to find occurrence times of events.
Correct : C. latest
34. The order in which machines are required for completing the jobs is called
Correct : C. processing order
35. The time during which a machine remains waiting or vacant in sequencing problem is called time.
Correct : D. idle
36. In linear programming represents mathematical equation of the limitations imposed by the problem.
Correct : C. constraints
37. The type of constraint which specifies maximum capacity of a resource is
‘or equal to’ constraint.
Correct : A. less than
38. The region of feasible solution in LPP graphical method is called
region
Correct : D. feasible
39. When the constraints are a mix of ‘less than’ and ‘greater than’ it is a problem having .
Correct : D. mixed constraints
40. The outgoing variable row in the simplex algorithm is called .
Correct : B. key row
41. A resource which is partially utilized is called in simplex.
Correct : C. abundant resource
42. The value of one extra unit of resource is called in simplex.
Correct : D. shadow price
43. In simplex, a maximization problem is optimal when all Delta J, i.e. Cj – Zj values are .
Correct : B. either zero or negative
44. In a transportation problem, the method of penalties is called method.
Correct : A. vogel’s approximat ion method
45. When there is a degeneracy in the transportation problem, we add an imaginary allocation called in the solution.
Correct : D. epsilon
46. If M + N – 1 = Number of allocations in transportation, it means . (Where ‘M’ is number of rows and ‘N’ is number of columns)
Correct : A. there is no degeneracy
47. An activity whose start or end cannot be delayed without affecting total project completion time is called activity.
Correct : D. critical
48. Floats for critical activities will be always be .
Correct : B. zero
49. The shortest possible completion time of an activity in PERT is called time.
Correct : A. optimistic
50. The total time required to complete all the jobs in a job sequencing problem is known as .
Correct : C. elapsed time
51. The participants in a game are called .
Correct : B. players
52. The outcome of the interaction of selected strategies of opponents in a game is called .
Correct : C. payoff
53. In a game, the alternatives or courses of action available to each player are called .
Correct : B. strategies
54. A situation in a game where, in the payoff matrix, maximin of row is equal to minimax of column is called .
Correct : B. saddle point
55. If there are or more decision variables in a LPP, SIMPLEX method is used.
Correct : B. 3
56. If 5y = 30, then the line is
Correct : A. parallel to x axis
57. Operations Research techniques are in nature.
Correct : B. quantitative
58. Forward pass calculations are done to find occurrence times of events.
Correct : B. earliest
59. The second longest path in the network diagram is called Path.
Correct : D. sub-critical
60. When a particular assignment in the given problem is not possible or restricted as a condition, it is called a problem.
Correct : B. prohibited
61. Operations Research (OR) , which is a very powerful tool for ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
Correct : B. Decision – Making
62. Who coined the term Operations Research?
Correct : D. Both A and B
63. The term Operations Research was coined in the year ‐‐‐‐‐‐‐‐‐‐‐‐‐‐
Correct : B. 1940
64. This innovative science of Operations Research was discovered during ‐‐‐‐‐‐‐‐‐‐‐‐‐
Correct : C. World War II
65. Operations Research was known as an ability to win a war without really going in to a ‐‐‐‐‐‐‐‐‐‐‐‐‐
Correct : D. Both A and B
66. Who defined Operations Research as scientific method of providing executive departments with
a quantitative basis for decisions regarding the operations under their control?
Correct : A. Morse and Kimball (1946)
67. Who defined Operations Research as scientific approach to problem solving for executive
management ?
Correct : C. H.M. Wagner
68. Who defined Operations Research as an aid for the executive in marketing his decisions by
providing him with the quantitative information based on the scientific method of analysis ?
Correct : A. C. Kitte
69. Operations Research has the characteristics the it is done by a team of ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
Correct : A. Scientists
70. There is a great scope for ‐‐‐‐‐‐‐‐‐‐‐‐ working as a team to solve problems of defence by using the
Operations Research approach
Correct : D. All of the above
71. Operations Research emphasizes on the overall approach to the system. This charecteristics of Operations Research is often referred as
Correct : D. none
72. Operations Research cannot give perfect ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ to problems
Correct : C. Both A and B
73. Operations Research simply helps in improving the ‐‐‐‐‐‐‐‐‐‐‐‐‐‐ of the solution but does not result
in a perfect solution.
Correct : A. Quality
74. Operations Research involves ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ attack of complex problems to arrive at the
optimum solution
Correct : C. Both A and B
75. Operations Research uses models built by quantitative measurement of the variables c a given problem and also derives a solution from the model using ‐‐‐‐‐‐‐‐‐‐‐‐‐ of the diversified solution techniques oncerning
Correct : B. One or more
76. A solution may be extracted from a model either by
Correct : C. Both A and B
77. Operations Research uses models to help the management to determine its ‐‐‐‐‐‐‐‐‐‐‐
scientifically
Correct : C. Both A and B
78. Operations Research is a ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
Correct : D. Both A and B
79. What have been constructed for Operations Research problems and methods for solving the
models that are available in many cases?
Correct : C. Mathematical Models
80. Which technique is used in finding a solution for optimizing a given objective, such as profit
maximization or cost minimization under certain constraints?
Correct : D. Linear Programming
81. What aims at optimizing inventory levels?
Correct : C. Inventory Planning
82. What can be defined as a useful idle resource which has economic value eg; raw materials, spare
parts, finished items, etc?
Correct : B. Inventory
83. Which theory concerns making sound decisions under conditions of certainity, risk and
uncertainty
Correct : C. Decision Theory
84. Key concept under which technique are network of events and activities , resource allocation,
time and cost considerations, network paths and critical paths ?
Correct : B. Network Analysis
85. Which technique is used to imitate an operation prior to actual performance ?
Correct : A. Simulation
86. What is concerned with the prediction of replacement costs and determination of the most
economic replacement policy ?
Correct : B. Theory of replacement
87. What refers to Linear Programming that includes an evaluation of relative risks and
uncertainties in various alternatives of choice for management decisions ?
Correct : C. Both A and B
88. What enables us to determine the earliest and the latest times for each of the events and
activities and thereby helps in the identification of the critical path?
Correct : C. Both A and B
89. Linear Programming technique is used to allocate scarce resources in an optimum manner in
problems of ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ?
Correct : C. Both A and B
90. Operations Research techniques helps the directing authority in optimum allocation of various
limited resources, such as ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
Correct : D. All of the above
91. Operations Research study generally involves how many phases ?
Correct : A. Three
92. ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ models involves the allocation of resources to activities in such a manner that some
measure of effectiveness is optimized.
Correct : B. Allocation Models
93. Allocation problems can be solved by
Correct : C. Both A and B
94. In ‐‐‐‐‐‐‐‐‐‐‐ models, everything is defined and the results are certain,
Correct : A. Deterministic Models
95. In ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ models there is risk and uncertainty
Correct : B. Probabilistic Models
96. ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ models are obtained by enlarging or reducing the size of the item
Correct : A. Iconic Models
97. Operations Research attempts to find the best and ‐‐‐‐‐‐‐‐‐‐‐‐‐ solution to a problem
Correct : A. Optimum
98. The word ‐‐‐‐‐‐‐‐‐‐‐‐‐ may be defined as some action that we apply to some problems or
hypothesis.
Correct : B. Operation
99. The operations Research technique, specially used to determine the optimum strategy is
Correct : B. Simulation
100. The operations Research technique which helps in minimizing total waiting and service costs is