270+ Operations Research solved MCQs with PDF download (2024)

________are entities whose value is determined from the solution of LPP The region of feasible solution in LPP graphical method is called ____ The outgoing variable row in the simplex table is called ____ When the solution is degenerate in transportation problem, we add a _ ______method is used in Assignment Problem The longest path in the network diagram is called ____ IF the Minimax are ( 10,18,16) and Maximin are (8,10,7). The saddle point is ___ Pick the wrong relationship: The shortest time in the PERT is called ______time The total time required to complete all the jobs in a job sequence problem is known as ______ Operations Research Models in which values of all variables and all possible outcomes are known with certainty are called models. Operations Research Models in which some or all variables are random in nature are called models. and are techniques applied in project management. are the entities whose values are to be determined from the solution of the LPP. specifies the objective or goal of solving the LPP. _are the restrictions or limitations imposed on the LPP. When it is not possible to find solution in LPP, it is called as solution In case of a ‘ ’ constraint, the feasible region is a straight line. In linear programming, unbounded solution means solution. The incoming variable column in the simplex algorithm is called . The intersection value of key column and key row is called The variable added to the LHS of a less than or equal to constraint to convert it into equality is called variable. A resource which is completely utilized is called in simplex In simplex, a minimization problem is optimal when all Delta J, i.e. Cj – Zj values are . To find initial feasible solution of a transportation problem the method which starts allocation from the lowest cost is called method When the total of allocations of a transportation problem match with supply and demand values, the solution is called solution. When the allocations of a transportation problem satisfy the rim condition (m + n – 1) the solution is called Which of the following considers difference between two least costs for each row and column while finding initial basic feasible solution in transportation? If the number of rows and columns in an assignment problem are not equal than it is called problem. The method used for solving an assignment problem is called method. When a maximization assignment problem is converted in minimization problem, the resulting matrix is called matrix. The longest path in the network diagram is called path Backward pass calculations are done to find occurrence times of events. The order in which machines are required for completing the jobs is called The time during which a machine remains waiting or vacant in sequencing problem is called time. In linear programming represents mathematical equation of the limitations imposed by the problem. The type of constraint which specifies maximum capacity of a resource is ‘or equal to’ constraint. The region of feasible solution in LPP graphical method is calledregion When the constraints are a mix of ‘less than’ and ‘greater than’ it is a problem having . The outgoing variable row in the simplex algorithm is called . A resource which is partially utilized is called in simplex. The value of one extra unit of resource is called in simplex. In simplex, a maximization problem is optimal when all Delta J, i.e. Cj – Zj values are . In a transportation problem, the method of penalties is called method. When there is a degeneracy in the transportation problem, we add an imaginary allocation called in the solution. If M + N – 1 = Number of allocations in transportation, it means . (Where ‘M’ is number of rows and ‘N’ is number of columns) An activity whose start or end cannot be delayed without affecting total project completion time is called activity. Floats for critical activities will be always be . The shortest possible completion time of an activity in PERT is called time. The total time required to complete all the jobs in a job sequencing problem is known as . The participants in a game are called . The outcome of the interaction of selected strategies of opponents in a game is called . In a game, the alternatives or courses of action available to each player are called . A situation in a game where, in the payoff matrix, maximin of row is equal to minimax of column is called . If there are or more decision variables in a LPP, SIMPLEX method is used. If 5y = 30, then the line is Operations Research techniques are in nature. Forward pass calculations are done to find occurrence times of events. The second longest path in the network diagram is called Path. When a particular assignment in the given problem is not possible or restricted as a condition, it is called a problem. Operations Research (OR) , which is a very powerful tool for ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Who coined the term Operations Research? The term Operations Research was coined in the year ‐‐‐‐‐‐‐‐‐‐‐‐‐‐ This innovative science of Operations Research was discovered during ‐‐‐‐‐‐‐‐‐‐‐‐‐ Operations Research was known as an ability to win a war without really going in to a ‐‐‐‐‐‐‐‐‐‐‐‐‐ Who defined Operations Research as scientific method of providing executive departments witha quantitative basis for decisions regarding the operations under their control? Who defined Operations Research as scientific approach to problem solving for executivemanagement ? Who defined Operations Research as an aid for the executive in marketing his decisions byproviding him with the quantitative information based on the scientific method of analysis ? Operations Research has the characteristics the it is done by a team of ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ There is a great scope for ‐‐‐‐‐‐‐‐‐‐‐‐ working as a team to solve problems of defence by using theOperations Research approach Operations Research emphasizes on the overall approach to the system. This charecteristics of Operations Research is often referred as Operations Research cannot give perfect ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ to problems Operations Research simply helps in improving the ‐‐‐‐‐‐‐‐‐‐‐‐‐‐ of the solution but does not resultin a perfect solution. Operations Research involves ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ attack of complex problems to arrive at theoptimum solution 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 A solution may be extracted from a model either by Operations Research uses models to help the management to determine its ‐‐‐‐‐‐‐‐‐‐‐ scientifically Operations Research is a ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ What have been constructed for Operations Research problems and methods for solving themodels that are available in many cases? Which technique is used in finding a solution for optimizing a given objective, such as profitmaximization or cost minimization under certain constraints? What aims at optimizing inventory levels? What can be defined as a useful idle resource which has economic value eg; raw materials, spareparts, finished items, etc? Which theory concerns making sound decisions under conditions of certainity, risk anduncertainty Key concept under which technique are network of events and activities , resource allocation,time and cost considerations, network paths and critical paths ? Which technique is used to imitate an operation prior to actual performance ? What is concerned with the prediction of replacement costs and determination of the mosteconomic replacement policy ? What refers to Linear Programming that includes an evaluation of relative risks anduncertainties in various alternatives of choice for management decisions ? What enables us to determine the earliest and the latest times for each of the events andactivities and thereby helps in the identification of the critical path? Linear Programming technique is used to allocate scarce resources in an optimum manner inproblems of ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ? Operations Research techniques helps the directing authority in optimum allocation of variouslimited resources, such as ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Operations Research study generally involves how many phases ? ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ models involves the allocation of resources to activities in such a manner that somemeasure of effectiveness is optimized. Allocation problems can be solved by In ‐‐‐‐‐‐‐‐‐‐‐ models, everything is defined and the results are certain, In ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ models there is risk and uncertainty ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ models are obtained by enlarging or reducing the size of the item Operations Research attempts to find the best and ‐‐‐‐‐‐‐‐‐‐‐‐‐ solution to a problem The word ‐‐‐‐‐‐‐‐‐‐‐‐‐ may be defined as some action that we apply to some problems orhypothesis. The operations Research technique, specially used to determine the optimum strategy is The operations Research technique which helps in minimizing total waiting and service costs is FAQs References