Business Mathematics

21. An LPP has ______________.

  1. one optimal solution.
  2. two optimal solutions.
  3. Three optimal solutions.
  4. none of these.
Correct answer: (D)
none of these.

22. The two forms of LPP are ______________.

  1. standard form and canonical form.
  2. standard form and general form.
  3. matrix form and canonical form.
  4. matrix form and standard form.
Correct answer: (A)
standard form and canonical form.

23. In the standard form of LPP if the objective function is of minimization then the right hand side of the constraints should be ______________.

  1. positive.
  2. negative.
  3. non-negative.
  4. zero.
Correct answer: (C)
non-negative.

24. In simplex method the LPP has unbounded solution if the variable in the key column is ______________.

  1. maximum.
  2. minimum.
  3. positive.
  4. negative.
Correct answer: (D)
negative.

25. Which of the following is not true about feasibility?

  1. it cannot be determined in a graphical solution of an L.P.P.
  2. it is independent of the objective function.
  3. it implies that there must be a convex region satisfying all the constraints.
  4. extreme points of the convex region gives the optimum solution.
Correct answer: (A)
it cannot be determined in a graphical solution of an L.P.P.

26. Network models have advantage in terms of project ______________

  1. Planning
  2. Scheduling.
  3. Controlling.
  4. All the above.
Correct answer: (D)
All the above.

27. If an activity has zero slack,it implies that ______________

  1. It lies on the critical path.
  2. It is a dummy acitivity.
  3. The project is progressing well.
  4. None of the above.
Correct answer: (A)
It lies on the critical path.

28. Float or slack analysis is useful for ______________

  1. Projects behind the schedule only.
  2. Projects ahead of the schedule only.
  3. Both a & b.
  4. None of the above.
Correct answer: (A)
Projects behind the schedule only.

29. Crashing is the process of reducing the total time that it takes to complete a project by expanding ______________

  1. Additional funds.
  2. No.of.days
  3. Both a & b
  4. None of the above
Correct answer: (A)
Additional funds.

30. Network is the graphical display of a project that contains both _________________

  1. Activities and events.
  2. Activities and dummy activities.
  3. Both (a) & (b).
  4. Neither (a) nor (b).
Correct answer: (A)
Activities and events.
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