Operations Research – Set 2 January 29, 2025 by aasi Home › Management › Operations Research Operations Research Operations Research – Set 2 📝 Model Practice Set ⚡ Instant Answers & Explanation 🎯 Exam Oriented 0% Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 Operations Research – Set 2 Dear ! This is Operations Research – Set 2 Quiz and it contains 50 questions. Keep Learning! 1 / 50 1) Every LPP is associated with another LPP is called ______________. Primal Dual Non_linear programming None of these 2 / 50 2) The distinguishing feature of an LP model is. Relationship among all variables is linear It has single objective function & constraints Value of decision variables is non-negative All of these 3 / 50 3) Non-negativity condition in an LP model implies. A positive coefficient of variables in objective function A positive coefficient of variables in any constraint Non-negative value of resources None of these 4 / 50 4) Which technique is used in finding a solution for optimizing a given objective, such as profit maximization or cost minimization under certain constraints? Quailing Theory Waiting Line Both A and B Linear Programming 5 / 50 5) Which theory concerns making sound decisions under conditions of certainity, risk and uncertainty? Game Theory Network Analysis Decision Theory None of these 6 / 50 6) Operations Research is a ____________. Science Art Mathematics Both A and B 7 / 50 7) Operations Research uses models to help the management to determine its ___________ scientifically. Policies Actions Both A and B None of these 8 / 50 8) A solution may be extracted from a model either by. Conducting experiments on it Mathematical analysis Both A and B Diversified Techniques 9 / 50 9) What have been constructed for Operations Research problems and methods for solving the models that are available in many cases? Scientific Models Algorithms Mathematical Models None of these 10 / 50 10) A minimization problem can be converted into a maximization problem by changing the sign of coefficients in the _____________. Constraints Objective Functions Both A and B None of these 11 / 50 11) A BFS of a LPP is said to be ________________ if at least one of the basic variable is zero. Degenerate Non_degenerate Infeasible Unbounded 12 / 50 12) In maximization cases, _____________ are assigned to the artificial variables as their coefficients in the objective function. +m –m 0 None of these 13 / 50 13) All the parameters in the linear programming model are assumed to be ____________. Variables Constraints Functions None of these 14 / 50 14) If there are ‘m’ original variables and ‘n’ introduced variables, then there will be _____________ columns in the simplex table. M + n M – n 3 +m + n M + n – 1 15 / 50 15) In simplex method, we add _____________ variables in the case of ‘=’. Slack Variable Surplus Variable Artificial Variable None of these 16 / 50 16) Any column or raw of a simplex table is called a __________. Vector Key column Key Raw None of these 17 / 50 17) Operations Research simply helps in improving the ______________ of the solution but does not in a perfect solution. Quality Clarity Look None of these 18 / 50 18) As for maximization in assignment problem, the objective is to maximize the ___________. Profit optimization cost None of these 19 / 50 19) Which of the following is not a characteristic of the LP? Resources must be limited Only one objective function Parameters value remains constant during the planning period The problem must be of minimization type 20 / 50 20) The mathematical model of an LP problem is important because. It helps in converting the verbal description & numerical data into mathematical expression Decision-makers prefer to work with formal models It captures the relevant relationship among decision factors It enables the use of algebraic technique 21 / 50 21) Graphic method can be applied to solve a LPP when there are only _____________ variable. One More than One Two Three 22 / 50 22) Non-negativity condition is an important component of LP model because. Variables value should remain under the control of the decision-maker Value of variables make sense & correspond to real-world problems Variables are interrelated in terms of limited resources None of these 23 / 50 23) A feasible solution to an LP problem. Must satisfy all of the problem’s constraints simultaneously Need not satisfy all of the constraints, only some of them Must be a corner point of the feasible region Must optimize the value of the objective function 24 / 50 24) Linear Programming technique is used to allocate scarce resources in an optimum manner in problems of ______________ ? Schedule Product Mix Both A and B Servicing Cost 25 / 50 25) Which of the following is a limitation associated with an LP model? The relationship among decision variables in linear No guarantee to get integer valued solutions No consideration of effect of time & uncertainty on LP model All of these 26 / 50 26) Before formulating a formal LP model, it is better to. Express each constrain in words Express the objective function in words Verbally identify decision variables All of these 27 / 50 27) The variables whose coefficient vectors are unit vectors are called ____________. Unit Variables Basic Variables Non basic Variables None of these 28 / 50 28) What aims at optimizing inventory levels? Inventory Control Inventory Capacity Inventory Planning None of these 29 / 50 29) The operations Research technique which helps in minimizing total waiting and service costs is. Queuing Theory Decision Theory Both A and B None of these 30 / 50 30) The graphical method of LP problem uses. Objective function equation Constraint equations Linear equations All of these 31 / 50 31) Operations Research techniques helps the directing authority in optimum allocation of various limited resources, such as ______________. Men and Machine Money Material and Time All of these 32 / 50 32) If the feasible region of a LPP is empty, the solution is ______________. Infeasible Unbounded Alternative None of these 33 / 50 33) Which of the following is an assumption of an LP model? Divisibility Proportionality Additivity All of these 34 / 50 34) The best use of linear programming technique is to find an optimal use of. Money Manpower Machine All of these 35 / 50 35) What can be defined as a useful idle resource which has economic value eg; raw materials, spareparts, finished items, etc? Inventory Control Inventory Inventory Planning None of these 36 / 50 36) Which of the following is not a characteristic of the LP model? Alternative courses of action An objective function of maximization type Limited amount of resources Non-negativity condition on the value of decision variables. 37 / 50 37) Constraints in an LP model represents. Limitations Requirements Balancing limitations & requirements All of these 38 / 50 38) Operations Research uses models built by quantitative measurement of the variables of a given problem and also derives a solution from the model using _____________ of the diversified solution techniques. Two or more One or more Three or more Only One 39 / 50 39) What refers to Linear Programming that includes an evaluation of relative risks and uncertainties in various alternatives of choice for management decisions ? Probabilistic Programming Stochastic Programming Both A and B Linear Programming 40 / 50 40) The solution need not be in ___________ numbers. Prime Number Whole Number Complex Number None of these 41 / 50 41) Linear programming is a. Constrained optimization technique Technique for economic allocation of limited resources Mathematical technique All of these 42 / 50 42) 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? Programme Evaluation Review Technique (PERT) Both A and B Deployment of resources 43 / 50 43) Maximization of objective function in an LP model means. Value occurs at allowable set of decisions Highest value is chosen among allowable decisions Neither of these Both a & b 44 / 50 44) Key concept under which technique are network of events and activities , resource allocation, time and cost considerations, network paths and critical paths ? Game Theory Network Analysis Decision Theory None of these 45 / 50 45) If in a LPP , the solution of a variable can be made infinity large without violating the constraints, the solution is _____________. Infeasible Unbounded Alternative None of these 46 / 50 46) Operations Research involves ______________ attack of complex problems to arrive at the optimum solution. Scientific Systematic Both A and B Statistical 47 / 50 47) Which technique is used to imitate an operation prior to actual performance ? Simulation Integrated Production Models Inventory Control Game Theory 48 / 50 48) What is concerned with the prediction of replacement costs and determination of the most economic replacement policy ? Search Theory Theory of replacement Probabilistic Programming None of these 49 / 50 49) In LPP, degeneracy occurs in ____________ stages. One Two Three Four 50 / 50 50) A constraint in an LP model restricts. Value of objective function Value of a decision variable Use of the available resources All of these Your score isThe average score is 0%🎉 Challenge alert! 💡 Share this quiz with your friends and see who scores the highest! 🏆🤩🔥 LinkedIn Facebook Follow Us @ 0% Restart quiz Exit We’d love to hear your thoughts! 📝 Share your valuable review with us. 🙌 🌟 Thank you for your support! Your feedback means the world to us. 🙏💖 Send feedback
