TRIBHUVAN UNIVERSITY
INSTITUTE OF SCIENCE AND TECHNOLOGY
2079 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.
- 1What is transaction in GPSS? Explain about facility in GPSS. Customers arrive at Joey's Barbershop one every $15\pm3$ minutes and it takes Joey $18\pm2$ minutes to cut hair of a customer. Create a GPSS model with block diagram for the Barbershop using the concept of facility and run the simulation for 9 hours.
- 2Why accuracy of analog computer is low? Explain analog computer with suitable example. Differentiate between analog and digital computer.
- 3Define and develop a Poker test for four-digit random numbers. A sequence of 1,000 random numbers, each of four digits has been generated. The analysis of the numbers reveals that in 525 numbers all four digits are different, 419 contain exactly one pair of like digits, 47 contain two pairs, 9 have three digits of a kind and 7 contain all like digits. Use Poker test to determine whether these numbers are independent. (Critical value of chi-square for $\alpha=0.05$ and $N=4$ is $9.49$).
Group B
Short Answer QuestionsAttempt any Eight questions.
- 4Why Confidence interval is needed in the analysis of simulation output. How can we establish a confidence interval?
- 5Describe dynamic physical model in detail with the help of suitable example.
- 6Explain the Monte Carlo simulation method with example.
- 7Generate ten 3 digit random integers and corresponding random variables using Multiplicative Congruential method where $a=7$, and $X_0=22$.
- 8"Building a model right" and "Building a right model". Are both statement same? Discuss the importance of V&V.
- 9Differentiate between discrete and continuous system.
- 10What is markov chain? Explain with example.
- 11Explain basic characteristics of Queueing System.
- 12Write short notes: a. Hypothesis testing b. Stationary Poisson Process