Objective Questions and Answers of MBA: Operations Research 10

Subject: Objective Questions and Answers of MBA: Operations Research 10

**Part 10: Objective questions and answers of Operations Research**

**Q1. Operations research was known as an ability to win a war without really going in to __________**

a) Battle field

b) Fighting

c) The opponent

d) Both a and b

**Q2. Or has characteristics that it is done by a team of**

a) Scientists

b) Mathematicians

c) Academics

d) All of the above

**Q3. Or uses models to help the management to determine its __________**

a) Policies

b) Actions

c) Both a and b

d) None of the above

**Q4. The dummy source or destination in a transportation problem is added to**

a) Satisfy rim conditions

b) Prevent solution from becoming degenerate

c) Ensure that total cost does not exceed a limit

d) None of the above

**Q5. The initial solution of a transportation problem can be obtained by applying any known method. However, the only condition is that**

a) The solution be optimal

b) The rim conditions are satisfied

c) The solution not be degenerate

d) All of the above

**Q6. The method of finding an initial solution based upon opportunity costs is called __________.**

a) The northwest corner rule

b) Vogel's approximation

c) Johanson's theorem

d) Flood's technique

e) Hungarian method

**Q7. The objective function and constraints are functions of two types of variables, __________ variables and __________ variables.**

a) Positive and negative

b) Controllable and uncontrollable

c) Strong and weak

d) None of the above

**Q8. The occurrence of degeneracy while solving a transportation problem means that**

a) Total supply equals total demand

b) The solution so obtained is not feasible

c) The few allocations become negative

d) None of the above

**Q9. The procedure used to solve assignment problems wherein one reduces the original assignment costs to a table of opportunity costs is called __________.**

a) Stepping-stone method

b) Matrix reduction

c) Modi method

d) Northwest reduction

e) Simplex reduction

**Q10. Or can evaluate only the effects of __________.**

a) Personnel factors.

b) Financial factors

c) Numeric and quantifiable factors.

d) All of above

**Q11. Or techniques help the directing authority in optimum allocation of various limited resources like __________**

a) Men and machine

b) Money

c) Material and time

d) All of the above

**Q12. The degeneracy in the transportation problem indicates that**

a) Dummy allocation(s) needs to be added

b) The problem has no feasible solution

c) The multiple optimal solution exist

d) A & b but not c

**Q13. The equation ri + kj = cij is used to calculate __________.**

a) An improvement index for the stepping-stone method

b) The opportunity costs for using a particular route

c) The modi cost values (ri, kj)

d) The degeneracy index

e) Optimality test

**Q14. The large negative opportunity cost value in an unused cell in a transportation table is chosen to improve the current solution because**

a) It represents per unit cost reduction

b) It represents per unit cost improvement

c) It ensure no rim requirement violation

d) None of the above

**Q15. The net cost of shipping one unit on a route not used in the current transportation problem solution is called the __________.**

a) Change index

b) New index

c) Modi index

d) Idle index

e) Improvement index

**Q16. The objective function for a minimization problem is given by**

z = 2 x1 – 5 x2 + 3 x3

the hyperplane for the objective function cuts a bounded feasible region in the space

(x1,x2,x3). Find the direction vector d, where a finite optimal solution can be reached.

a) D(2,-5,3)

b) D(-2,5,-3)

c) D(2,5,3)

d) D(-2,-5,-3)

**Q17. The only restriction we place on the initial solution of a transportation problem is that: we must have nonzero quantities in a majority of the boxes.**

a) All constraints must be satisfied.

b) Demand must equal supply.

c) We must have a number (equal to the number of rows plus the number of columns minus one) of boxes which contain nonzero quantities.

d) None of the above

** **

**Q18. The operations research technique which helps in minimizing total waiting and service costs is**

a) Queuing theory

b) Decision theory

c) Both a and b

d) None of the above

**Q19. The purpose of a dummy source or dummy destination in a transportation problem is to**

a) Prevent the solution from becoming degenerate.

b) Obtain a balance between total supply and total demand.

c) Make certain that the total cost does not exceed some specified figure.

d) Provide a means of representing a dummy problem.

**Q20. During which century, the manufacturers began to include quality processes in quality practices?**

a) 17th century

b) 18th century

c) 19th century

d) 20th century

**Part 10: Objective questions and answers of Operations Research**

Q1. Answer d

Q2. Answer d

Q3. Answer c

Q4. Answer a

Q5. Answer b

Q6. Answer b

Q7. Answer b

Q8. Answer b

Q9. Answer b

Q10. Answer c

Q11. Answer d

Q12. Answer c

Q13. Answer c

Q14. Answer a

Q15. Answer e

Q16. Answer b

Q17. Answer a

Q18. Answer a

Q19. Answer b

Q20. Answer d