Operations Research MCQs

✅ The correct answer is option A.
The operations Research technique which helps in minimizing total waiting and service costs is Queuing Theory. Queuing theory (or “queueing theory”) examines every component of waiting in line to be served, including the arrival process, service process, number of servers, number of system places, and the number of customers—which might be people, data packets, cars, etc.

✅ The correct answer is option C.
In simplex method, if there is tie between a decision variable and a slack (or surplus) variable, Decision variable should be selected. A decision variable is a quantity that the decision-maker controls.

✅ The correct answer is option D.
Probabilities of occurrence of any state are Collectively exhaustive, Mutually exclusive and Representing one of the finite numbers of states of nature in the system.

✅ The correct answer is option C.
A solution may be extracted from a model either by Conducting experiments on it and Mathematical analysis.

✅ The correct answer is option C.
An infeasible problem is a problem that has no solution while an unbounded problem is one where the constraints do not restrict the objective function and the optimal objective goes to infinity. Both situations arise due to errors or shortcomings in the formulation or in the data defining the problem.

✅ The correct answer is option A.
If a matrix of transition probability is of the order n*n, then the number of equilibrium equations would be n.

✅ The correct answer is option A.
The first-order Markov chain is generally used when transition probabilities are fairly stable. The first order Markov chain transition probability is the conditional probability that the second amino acid occurs in a two-amino-acid sequence, given the occurrence of the first amino acid, ie P(second amino acid|first amino acid).

✅ The correct answer is option C.
Decision Theory concerns making sound decisions under conditions of certainity, risk and uncertainty. Decision theory is an interdisciplinary approach to arrive at the decisions that are the most advantageous given an uncertain environment. Decision theory brings together psychology, statistics, philosophy, and mathematics to analyze the decision-making process.

✅ The correct answer is option C.
Customer behavior in which the customer moves from one queue to another in a multiple channel situation is Jockeying. Customers may jockey from one line to another, i.e. move from one line to another. This can be seen typically at supermarkets as well as train stations, where a person leaves the line he is standing in, and joins another line which appears to be shorter, or appears to be moving faster.

✅ The correct answer is option A.
BASIC is not the special purpose simulation language. BASIC stands for beginner’s all-purpose symbolic instruction code, and is a computer programming language that was invented in 1964 at Dartmouth University by John G Kemeny and Thomas E Kurtz. BASIC has the advantage of English-like commands that are easier to understand and remember than those of most other languages.