Description : ........................variables are fictitious and cannot have any physical meaning. a. Slack variables b. Surplus variables c. Artificial variables d. Decision variables
Last Answer : c. Artificial variables
Description : In simplex method, we add _______ variables in the case of “=” a. Slack variable b. Surplus variable c. Artificial variable d. None of the above
Last Answer : c. Artificial variable
Description : A basic solution which also satisfies the condition in which all basic variables are non-negative is called ___ a. Basic feasible solution b. Feasible solution c. Optimal solution d. None of the above
Last Answer : a. Basic feasible solution
Description : 65. Any feasible solution which optimizes (minimizes or maximizes) the objective function of the LPP is called as _______ a. Optimal solution b. Non-basic variables c. Solution d. Basic Feasible solution
Last Answer : a. Optimal solution
Description : An assumption that implies that finite numbers of choices are available to a decision-maker and the decision variables do not assume negative values is known as _______ a. Certainty b. Continuity c. Finite choices d. None of the above
Last Answer : c. Finite choices
Description : 40. Which of the following is a limitation associated with an LP model a. The relationship among decision variables is linear b. No guarantee to get integer valued solutions c. No considerations of effect of time & uncertainty on LP model d. All of the above
Last Answer : d. All of the above
Description : 33. Before formulating a formal L P model it is better to a. Express each constrain in words b. Express the objective function in words c. Verbally identify decision variables d. All of the above
Description : 2. Non-Negativity condition is an important component of L P model because a. Variables value should remain under the control of the decision-maker b. Value of variables make sense & correspond to real-world problems c. Variables are interrelated in terms of limited resources d. None of the above
Last Answer : b. Value of variables make sense & correspond to real-world problems
Description : 30. The distinguishing feature of an LP model is a. Relationship among all variables is linear b. It has single objective function & constraints c. Value of decision variables is non-negative d. All of the above
Last Answer : a. Relationship among all variables is linear
Description : All the constraints are expressed as equations and the right hand side of each constraint and all variables are non-negative is called_______ a. Canonical variable b. Canonical form c. Canonical solution d. Both a & b
Last Answer : b. Canonical form
Description : _____ is another method to solve a given LPP involving some artificial variable? a. Big M method b. Method of penalties c. Two-phase simplex method d. None of the above
Last Answer : a. Big M method
Description : An assignment problem is a special case of transportation problem, where a. Number of rows equals number of columns b. All rim conditions are 1 c. Values of each decision variable is either 0 or 1
Last Answer : D.variable is either 0 or 1
Description : In simplex method, if there is tie between a decision variable and a slack (or surplus) variable, ______ should be selected a. Slack variable b. Surplus variable c. Decision variable d. None of the above
Last Answer : c. Decision variable
Description : 35. Which of the following is not a characteristic of the L P model a. Alternative courses of actions b. An objective function of maximization type c. Limited amount of resources d. Non-negativity condition on the value of decision variable
Last Answer : b. An objective function of maximization type
Description : 29. A constraint in an LP model restricts a. Value of objective function b. Value of a decision variable c. Use of the available resources d. All of the above
Description : 25. Operations Research models in which some or all values of variables are random in nature are called _____ a. Physical b. Symbolic c. Deterministic d. Probabilistic
Last Answer : d. Probabilistic
Description : Operations Research models in which values of all variables and all possible outcomes are known with certainty are called _____ a. Physical b. Symbolic c. Deterministic d. Probabilistic
Last Answer : c. Deterministic
Description : An optimal solution of an assignment problem can be obtained only if a. Each row & column has only one zero element b. Each row & columns has at least one zero element c. The data is arrangement in a square matrix d. None of the above
Last Answer : d. None of the above
Description : An optimal assignment requires that the maximum number of lines that can be drawn through squares with zero opportunity cost be equal to the number of a. Rows or columns b. Rows & columns c. Rows + columns -1 d. None of the above
Last Answer : b. Rows & columns
Description : An objective function which states the determinants of the quantity to be either maximized or minimized is called_______ a. Feasible function b. Optimal function c. Criterion function d. None of the above
Last Answer : b. Optimal function
Description : 56. Constraints in LP problem are called active if they a. Represent optimal solutions b. At optimality do not consume all the available resources c. Both a & b d. None of the above
Last Answer : a. Represent optimal solutions
Description : 52. If an iso-profit yielding the optimal solution coincides with a constraint line, then a. The solution is unbounded b. The solution is infeasible c. The constraint which coincides is redundant d. None of the above
Description : 51. An iso-profit line represents a. An infinite number of solutions all of which yield the same profit b. An infinite number of solutions all of which incurs the same cost c. An infinite number of optimal solutions d. A boundary of the feasible region
Last Answer : . An infinite number of solutions all of which yield the same profit
Description : 50. Which of the following statements is true with respect to the optimal solution of an LP problem? a. Every LP problem has an optimal solution b. Optimal solution of an LP problem always occurs ... completely used d. If an optimal solution exists, there will always be at least one at a corner
Last Answer : d. If an optimal solution exists, there will always be at least one at a corner
Description : 36. The best use of linear programming technique is to find an optimal use of a. Money b. Manpower c. Machine d. All of the above
Last Answer : . All of the above
Description : A linear programm A linear programming model CANNOT be used when whic ing model CANNOT be used when which of the followin h of the following are true? g are true? a)An optimal ... set of linear constraints may be defined d)Cross product relationships exist between two or more decision variables
Last Answer : d)Cross product relationships exist between two or more decision variables
Description : . Non-negativity condition in an LP model implies a. A positive coefficient of variables in objective function b. A positive coefficient of variables in any constraint c. Non-negative value of resources d. None of the above
Last Answer : d. None of the Above
Description : Controllable variables are also called.................................. a. Slack variables b. Surplus variables c. Artificial variable d. Decision variables
Last Answer : d. Decision variables
Description : The choice of the strategy is made by both the _________ simultaneously a. Decision maker b. Manager c. Competitor d. Player
Last Answer : Player
Description : A ______ occurs when each player selects one of his strategies a. Profit b. Decision c. Play d. Game
Last Answer : c. Play
Description : 45. LP is a major innovations since _______ in the field of business decision-making, particularly under conditions of certainty a. Industrial Revolution b. World War I c. World War II d. French Revolution
Last Answer : c. World War II
Description : 27. The mathematical model of an LP problem is important because a. It helps in converting the verbal description & numerical data into mathematical expression b. Decision-makers prefer to ... captures the relevant relationship among decision factors d. It enables the use of algebraic technique
Last Answer : a. It helps in converting the verbal description & numerical data into mathematical expression
Description : ______ are technique applied in project management a. CPM b. Assignment c. Transportation d. Decision theory
Last Answer : a. CPM
Description : Operations Research, which is a very powerful tool for _____ a. Research b. Decision-Making c. Operations d. None of the above
Last Answer : Decision-Making
Description : A BFS of a LPP is said to be ______ if at least one of the basic variable is zero a. Degenerate b. Non-degenerate c. Infeasible d. unbounded
Last Answer : a. Degenerate
Description : If in a LPP, the solution of a variable can be infinity large without violating the constraints, the solution is ___ a. Infeasible b. Unbounded c. Alternative d. None of the above
Last Answer : b. Unbounded
Description : _____ refers to the combination of one or more inputs to produce a particular output a. Solution b. Variable c. Process d. None of the above
Last Answer : c. Process
Description : A set of values X1,X2……..Xn which satisfies the constraints of the LPP is called_______ a. Solution b. Variable c. Linearity d. None of the above
Last Answer : a. Solution
Description : . In simplex algorithm, which method is used to deal with the situation where an infeasible starting basic solution is given? a. Slack variable b. Simplex method c. Big M Method d. None of the above
Last Answer : b. Simplex method
Description : 63. Graphic method can be applied to solve a LPP when there are only ____ variable a. Four b. More than one c. Two d. three
Last Answer : Which oil is used in the floatation method for the purification of ores?
Description : 60. While solving a LP problem, infeasibility may be removed by a. Adding another constraint b. Adding another variable c. Removing a constraint d. Removing a variable
Last Answer : c. Removing a constraint
Description : If there are more than one optimal solutions for the decision variables, the solution is ........... a. Infeasible b. Unbounded c. Alternative d. None of these
Last Answer : c. Alternative
Description : An activity whose start or end cannot be delay without affecting total project completion time is called ______ activity a. Dummy b. Non-critical c. Critical d. Important
Last Answer : c. Critical
Description : Operations Research techniques cannot be applied to _____ a. Managerial judgement b. Business initiatives c. Customer perceptions d. All of the above
Last Answer : c. Customer perceptions
Description : 13. Operations Research cannot give perfect _____ to problems a. Answers b. Solutions c. Both a & b d. Decisions
Last Answer : c. Both a & b
Description : At which of the following stage(s), the degeneracy do not occur in transportation problem? (m, n represents number of sources and destinations respectively) (a) While the values of dual variables ui and vj cannot be computed. (b) While ... and (d) (3) (a) and (d) (4) (a), (b), (c) and (d)
Last Answer : (3) (a) and (d)
Description : Every combination of strategies determines an outcome known as _____ a. Regret b. Payoff c. Saddle point d. Profit matrix
Last Answer : b. Payoff
Description : A ______ is the one in which the player selects more than one strategy with fixed probabilities before playing the game. a. Mixed strategy b. Pure strategy c. Complete strategy d. Impure strategy
Last Answer : d. Impure strategy
Description : A _______ provides a complete definition of how a player will play a game a. Mixed strategy b. Pure strategy c. Complete strategy d. Impure strategy
Last Answer : c. Complete strategy
Description : The various alternatives or courses of actions available to each player in a game are called as ____ a. Saddle points b. Strategies c. Pay-off d. Gains
Last Answer : b. Strategies