Operations Research MCQs

✅ The correct answer is option D.
Constraints in an LP model represents Limitations, Requirements and Balancing limitations & requirements.

✅ The correct answer is option C.
If there are ‘m’ original variables and ‘n’ introduced variables, then there will be 3 + m + n columns in the simplex table.

✅ The correct answer is option C.
Linear Programming technique is used to allocate scarce resources in an optimum manner in problems of Schedule and Product Mix. Linear programming is a mathematical technique for allocating limited resources is optimum manner. In the words of William M. Fox, “Linear programming is a planning technique that permits some objective function to be minimized or maximized within the framework of given situational restrictions.”

✅ The correct answer is option B.
Operations Research uses models built by quantitative measurement of the variables of a given problem and also derives a solution from the model using one or more of the diversified solution techniques. Diversified Sourcing Solutions uses various services and techniques to check for criminal background information among applicants considered for a job offer.

✅ The correct answer is option C.
Large complicated simulation models are appreciated because It is difficult to create the appropriate events. A simulation model has ‘entities’ (e.g. machines, materials, people, etc.) and ‘activities’ (e.g. processing, transporting, etc.). It also has a description of the logic governing each activity.

✅ The correct answer is option B.
The general purpose system simulation language does not require programme writing. General Purpose Simulation System (GPSS) is a discrete time simulation general-purpose programming language, where a simulation clock advances in discrete steps. It is used primarily as a process flow oriented simulation language; this is particularly well-suited for problems such as a factory.

✅ The correct answer is option A.
While solving a LP model graphically, the area bounded by the constraints is called feasible region. It is the set of all possible points (sets of values of the choice variables) of an optimization problem that satisfy the problem’s constraints, potentially including inequalities, equalities, and integer constraints.

✅ The correct answer is option B.
An objective function of maximization type is not a characteristic of the LP model. The objective of linear programming is to: “maximize or to minimize some numerical value.

✅ The correct answer is option A.
If a non-redundant constraint is removed from an LP problem then feasible region will become larger. A redundant constraint is a constraint that can be omitted from the system without changing the set of feasible solutions S. An implicit equality constraint is an inequality constraint that can be replaced by an equality constraint without changing S.

✅ The correct answer is option B.
Theory of replacement is concerned with the prediction of replacement costs and determination of the most economic replacement policy. The Replacement Theory in Operations Research is used in the decision making process of replacing a used equipment with a substitute; mostly a new equipment of better usage. The replacement might be necessary due to the deteriorating property or failure or breakdown of particular equipment.