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problems of operation_research

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BHARATHIYAR COLLEGE OF ENGINEERING AND TECHNOLOGY
DEPARTMENT OF MECHANICAL ENGINEERING
OPERATION RESEARCH
TWO MARK QUESTIONS WITH ANSWERS
YEAR: III-MECH A&B SEMESTER: VI
FACULTY NAME: Mr.M.THIRUNAVUKKARASU Assistant professor
Unit-I
1. List out the applications of operations research.
Operation research is useful for solving (i) resource allocation problems (ii) Inventory
control problems (iii) maintenance and replacement problems (iv) sequencing and scheduling
problems (v) maximize total profit or minimize total coast
2. What is the role of O.R in Engineering?
(i) Optimal design of water resources systems
(ii) Optimal design of structures
(iii) Production, Planning, Scheduling and control
(iv) Optimal design of electrical networks
(v) Inventory control
(vi) Planning of maintenance and replacement of equipment
(vii) Allocation of resources of services to maximize the benefit
(viii) Design of material handling
(ix) Optimum design of machines
(x) Optimum design of control systems
3. What is analytic procedure?

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Solving models by classical mathematical techniques like differential calculus, finite
differences etc. to obtain analytic solutions.
4. What is Iterative procedure?
Starts with a trial solution and a set of rules for improving it by repeating the procedure
unitl further improvement is not possible.
5. What is monte-carlo technique?
Taking sample observations, computing probability distributions for the variable using
random numbers and constructing some functions to determine values of the decision variables.
6. What are the limitations for operation research?
Mathematical models which are the essence of OR do not take into account qualitative or
emotional or some human factors which are quite real and influence the decision making. All
such influencing factors find no place in O.R. This is the main limitation of O.R. Hence O.R. is
only an aid in decision making.
7. What is linear programming?
Linear programming problems deal with determining optimal allocations of limited
resources to meet given objectives. The resources may be in the form of men, raw materials,
market demand, money and machines etc. The objective is usually maximizing profit,
minimizing total cost maximizing utility etc. There are certain restrictions on the total amount of
each resource available and on the quantity or quality of each product made.
8. What are the characteristics of linear programming problem?
(i) It should be reasonably simple
(ii) A good model should be capable of taking into account new changes in the situation
affecting in the situation affecting its frame significantly with ease i.e., updating the
models should be as simple and easy as possible.
(iii) Assumptions made to simplify the model should be as small as possible
(iv) Number of variables used should be as small in number as possible
(v) The model should be open to parametric treatment.
9. List any four classifications of models in operation research
The first thing one has to do to use O.R. techniques after formulating a practical problem
is to construct a suitable model to represent the practical problem. A model is a reasonably

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BHARATHIYAR COLLEGE OF ENGINEERING AND TECHNOLOGY DEPARTMENT OF MECHANICAL ENGINEERING OPERATION RESEARCH TWO MARK QUESTIONS WITH ANSWERS YEAR: III-MECH A&B SEMESTER: VI FACULTY NAME: Mr.M.THIRUNAVUKKARASU Assistant professor Unit-I 1. List out the applications of operations research. Operation research is useful for solving (i) resource allocation problems (ii) Inventory control problems (iii) maintenance and replacement problems (iv) sequencing and scheduling problems (v) maximize total profit or minimize total coast 2. What is the role of O.R in Engineering? (i) Optimal design of water resources systems (ii) Optimal design of structures (iii) Production, Planning, Scheduling and control (iv) Optimal design of electrical networks (v) Inventory control (vi) Planning of maintenance and replacement of equipment (vii) Allocation of resources of services to maximize the benefit (viii) Design of material handling (ix) Optimum design of machines (x) Optimum design of control systems 3. What is analytic procedure? Solving models by classical mathematical techniques like differential calculus, finite differences etc. to obtain analytic solutions. 4. What is Iterative procedure? Starts with a trial solution and a set of rules for improving it by repeating the procedure unitl further improvement is not possible. 5. What is monte-carlo technique? Taking sample observations, computing probability distributions for the variable using random numbers and constructing some f ...
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