Operations Research

131. If the primal has an unbound objective function value then the dual has ______________.

1. solution
2. basic solution
3. basic feasible solution
4. no feasible solution

View answer

132. If there is no non-negative replacement ratio in a solution which is sought to be improved, then the solution is ______________.

1. bounded
2. unbounded
3. no solution
4. alternative solution

View answer

133. An activity is represented by a/an ______________.

1. arrow
2. straight line
3. curve
4. arc

View answer

134. A project consists of a number of tasks which are called ______________.

1. activities
2. floats
3. events
4. paths

View answer

135. The similarity between assignment problem and transportation problem is ______________.

1. both are rectangular matrices
2. both are square matrices
3. both can be solved y graphical method
4. both have objective function and non-negativity constraints

View answer

136. The penalty for not taking correct decision is known as ______________.

1. fine
2. loss
3. cost
4. opportunity cost

View answer

137. In a given system of m simultaneous linear equations in n unknowns (m<n) there will be ______________.

1. n basic variables
2. m basic variables
3. (n-m) basic variables
4. (n+m) basic variables

View answer

138. If all aij values in the entering variable column of the simplex table are negative, then ______________.

1. solution is unbounded
2. solution is degenerate
3. there exist no solution
4. there are multiple solutions

View answer

139. An unoccupied cell in the transportation method is analogous to a______________.

1. Zj-Cj value in the simplex table.
2. variable in the B-column in the simplex table.
3. variable not in the B-column in the simplex table.
4. value in the XB column in the simplex table.

View answer

140. Every basic feasible solution of a general assignment problem having a square pay-off matrix of order n should have assignments equal to______________.

1. 2n-1
2. n
3. n+1
4. n-2

View answer