TRIBHUVAN UNIVERSITY
INSTITUTE OF SCIENCE AND TECHNOLOGY
2080 B.S.
Candidates are required to give their answers in their own words as far as practicable.
Group A
Long Answer QuestionsAttempt any Two questions.
- 1Why model of a system is built? What is static model? Differentiate between static and dynamic mathematical models in simulation.
- 2What is storage in GPSS? Describe the blocks associated to storage in GPSS. A machine tool in a manufacturing shop is turning out parts at the rate of one every 5 minutes. As they are finished the parts go to an inspector who takes $10\pm3$ minutes to examine each one and rejects 10% of the parts. Represent the system in GPSS using the concept of facility and run the simulation for 500 parts.
- 3What are the two main properties of random numbers? Test whether the $3^{\text{rd}}, 7^{\text{th}}, 11^{\text{th}}$, and so on numbers in the sequence in the following random number sample are auto-correlated. $(Z_{\alpha}=0.05\text{ and }Z_{0.025}=1.96)$ 0.12 0.01 0.23 0.28 0.89 0.31 0.64 0.28 0.83 0.93 0.99 0.15 0.33 0.35 0.91 0.41 0.60 0.27 0.75 0.88 0.68 0.49 0.05 0.43 0.95 0.58 0.19 0.36 0.69 0.87
Group B
Short Answer QuestionsAttempt any Eight questions.
- 4Explain Markov chain with suitable example.
- 5What are steps involved in simulation study? Explain.
- 6Generate 10 random integers using Linear congruential method where $m=1000$, $a=19$, $c=6$, and $X_0=13$.
- 7Explain different estimation methods which are used in simulation output analysis.
- 8Define verification and validation. Explain the process of model verification in brief.
- 9What is feedback system? Explain with example.
- 10What is Calling Population? Explain Arrival and Service process in a queue.
- 11Explain the Monte Carlo simulation method with example.
- 12Write short notes: a) Non-stationary Poisson Process b) Poker Test