Operations Research

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

1. Battle field
2. Fighting
3. The opponent
4. Both A and B

182. Optimal solution of an assignment problem can be obtained only if

1. Each row & column has only one zero element
2. Each row & column has at least one zero element
3. The data is arrangement in a square matrix
4. None of the above

183. OR can evaluate only the effects of __________.

1. Personnel factors.
2. Financial factors
3. Numeric and quantifiable factors.
4. all of above

184. OR has a characteristics that it is done by a team of

1. Scientists
2. Mathematicians
3. Academics
4. All of the above

185. OR techniques help the directing authority in optimum allocation of various limited resources like __________

1. Men and Machine
2. Money
3. Material and Time
4. All of the above

186. OR uses models to help the management to determine its __________

1. Policies
2. Actions
3. Both A and B
4. None of the above

187. The degeneracy in the transportation problem indicates that

1. Dummy allocation(s) needs to be added
2. The problem has no feasible solution
3. The multiple optimal solution exist
4. a & b but not c

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

1. Satisfy rim conditions
2. Prevent solution from becoming degenerate
3. Ensure that total cost does not exceed a limit
4. None of the above

189. The equation Ri + Kj = Cij is used to calculate __________.

1. an improvement index for the stepping-stone method
2. the opportunity costs for using a particular route
3. the MODI cost values (Ri, Kj)
4. the degeneracy index
5. optimality test

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

1. The solution be optimal
2. The rim conditions are satisfied
3. The solution not be degenerate
4. All of the above