Computer Simulation & Modelling - May 2013
Information Technology (Semester 8)
TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1(a) Define system state, Event notice, Activity, Event list delay and clock.(10 marks) 1(b) What are characteristics of queuing system?(5 marks) 1(c) Describe the event scheduling simulation(5 marks) 2(a) What one used to obtain information about a process in the absence of input data? Explain data collection for input modelling.(10 marks) 2(b) Explain steps involved in simulation study.(10 marks) 3(a) Describe the input model for an inventory system if the lead time and inventory are related.(10 marks) 3(b) Explain types of models with examples.(10 marks) 4(a) Discuss the various issues in manufacturing and material handling in simulation.(10 marks) 4(b) Why random numbers used in simulation? What are techniques used to generate them?(10 marks) 5(a) Describe the inventory system when
(i)Lead time is zero.
(ii)Lead time is independent of demand and random.
(iii)Lead time is constant. (10 marks) 5(b) Mention some of the area when simulation can be applied. Also explain when system cannot be simulated.(10 marks) 6(a) Give the equation of steady state parameters of M/G/1 queue and derive M/M/1 from M/G/1.(10 marks) 6(b) What do you understand by model verification and validation? How would you validate input-output transformation of a model?(10 marks)
Write short notes on any two of the following:-
7(a) Inverse Transform Technique(10 marks) 7(b) Poisson Process Properties.(10 marks) 7(c ) Trends in simulation software.(10 marks) 7(d) Cobweb Model(10 marks)