Principles and Practices of Management

41. Operations research analysts do not

1. Predict future operations
2. Build more than one model
3. Collect relevant data
4. Recommend decision and accept

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42. The name management science is preferred by

1. Americans
2. English
3. French
4. Latin

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43. ______________ Theory is an important operations research technique to analyze the queuing behaviour.

1. Waiting line
2. Net work
3. Decision
4. Simulation

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44. A map indicates roads, highways, towns and the interrelationship is an ______________ model

1. Iconic
2. mathematical
3. analogue
4. none of the above

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45. Constraints in an LP model represent

1. Limitations
2. Requirements
3. Balancing limitation
4. all of the above

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46. Most of the constraints in the linear programming problem are expressed as ______________

1. Equality
2. Inequality
3. Uncertain
4. all of the above

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47. The solution space of a LP problem is unbounded due to

1. An incorrect formulation of the LP model
2. Objective function is unbounded
3. Neither (a) nor (b)
4. Both (a) and (b)

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48. While solving an LP problem infeasibility may be removed by

1. Adding another constraint
2. Adding another variable
3. Removing a constraint
4. Removing a variable

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49. An activity which must be completed before one or more other activities start is known as ______________ activity.

1. Predecessor
2. Successor
3. Dummy
4. End

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50. Alternative solutions exists of an LP model when

1. One of the constraints is redundant.
2. Objective function equation is parallel to one of the constraints
3. Two constraints are parallel.
4. all of the above

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