**11. **In program evaluation review technique network each activity time assume a beta distribution because______________.

- it is a unimodal distribution that provides information regarding the uncertainty of time estimates of activities
- it has got finite non-negative error
- it need not be symmetrical about model value
- the project is progressing well

Correct answer: (A)

it is a unimodal distribution that provides information regarding the uncertainty of time estimates of activities

it is a unimodal distribution that provides information regarding the uncertainty of time estimates of activities

**12. ** If there is no non-negative replacement ratio in solving a Linear Programming Problem then the solution is ______________.

- feasible
- bounded
- unbounded
- infinite

Correct answer: (C)

unbounded

unbounded

**13. **The calling population is considered to be infinite when ______________.

- all customers arrive at once
- capacity of the system is infinite
- service rate is faster than arrival rate
- arrivals are independent of each other

Correct answer: (B)

capacity of the system is infinite

capacity of the system is infinite

**14. **In marking assignments, which of the following should be preferred?

- Only row having single zero
- Only column having single zero
- Only row/column having single zero
- Column having more than one zero

Correct answer: (C)

Only row/column having single zero

Only row/column having single zero

**15. **A petrol pump have one pump; Vehicles arrive at the petrol pump according to poison input process at average of 12 per hour. The service time follows exponential distribution with a mean of 4 minutes. The pumps are expected to be idle for ______________.

- 3/5
- 4/5
- 5/3
- 6/5

Correct answer: (B)

4/5

4/5

**16. **If the order quantity (size of order) is increased, ______________

- holding costs decrease and ordering costs increase
- holding costs increase and ordering costs decrease
- the total costs increase and then decrease
- storage cost as well as stock-out cost increase

Correct answer: (B)

holding costs increase and ordering costs decrease

holding costs increase and ordering costs decrease

**17. **______________ is a mathematical technique used to solve the problem of allocating limited resource among the competing activities

- Linear Programming problem
- Assignment Problem
- Replacement Problem
- Non linear Programming Problem

Correct answer: (A)

Linear Programming problem

Linear Programming problem

**18. **A mixed strategy game can be solved by ______________.

- Simplex method
- Hungarian method
- Graphical method
- Degeneracy

Correct answer: (C)

Graphical method

Graphical method

**19. **The activity cost corresponding to the crash time is called the ______________.

- critical time
- normal time
- cost slope
- crash cost

Correct answer: (D)

crash cost

crash cost

**20. **A set of feasible solution to a Linear Programming Problem is ______________

- convex
- polygon
- triangle
- bold

Correct answer: (A)

convex

convex