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Production Planning and Control - May 2016
Mechanical Engineering (Semester 7)
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.
Attempt any four
1(a) Why there is a need for PPC department?(5 marks)
1(b) What are the reasons for storing the inventory?(5 marks)
1(c) What are the problems faced in case of lack of product planning?(5 marks)
1(d) What is ABC analysis?(5 marks)
1(e) What are the factors influencing scheduling?(5 marks)
2(a) What are the different types of manufacturing methods?(10 marks)
2(b) What is a work order? How is it prepared in different manufacturing methods?(10 marks)
3(a) A company wishes to assign 4 salesmen to 4 districts. The volume of sales matrix is given below. Make the optimal assignment which results in maximum volume of sales.
Salesmen | Districts | |||
A | B | C | D | |
1 | 250 | 300 | 420 | 400 |
2 | 350 | 400 | 200 | 250 |
3 | 500 | 375 | 400 | 350 |
4 | 400 | 350 | 420 | 300 |
Job | A | B | C | D | E | F | G |
M-I | 6 | 24 | 30 | 12 | 20 | 22 | 18 |
M-II | 16 | 20 | 20 | 13 | 24 | 2 | 6 |
A kitchen manager at a hospital has to decide the food mix for the patients. Dietary instructions are that each patient must get at least, one gm. Of protein, one gm. Of fat and 3 gms. Of carbohydrates. Additional instructions are that in no case the carbohydrates should exceed 6 gms. Per patient.
The availability of protein, fat, adn carbohydrates in gms. Per kg of chicken, rice and bread is given as follows,
Protein | Fat | Carbohydrates | Price/kg | |
Chicken | 10 | 2 | 0 | 30 |
Rice | 2 | 1 | 15 | 5 |
Bread | 2 | 0 | 10 | 4 |
Formulate a suitable mathematical model for the above diet mix assuming 100 patients on that day.(10 marks) 5(a) A project is composed of the following activities whose time estimates are given below, (estimated activity duration in weeks)
Activity | Optimistic | Most Likely | Pessimistic |
1-2 | 1 | 1 | 7 |
1-3 | 1 | 4 | 7 |
1-4 | 2 | 2 | 8 |
2-5 | 1 | 1 | 1 |
3-5 | 2 | 5 | 14 |
4-6 | 2 | 5 | 8 |
5-6 | 3 | 6 | 15 |
b) Find the expected duration and variance for each activity.
c) Calculate the standard deviation of project length.(10 marks) 5(b) What is the importance of a process sheet? What details does a process sheet contain?(10 marks)
Write short notes on
6(a) PPC as an integrated approach(5 marks) 6(b) ERP(5 marks) 6(c) Compute Aided Process Planning(5 marks) 6(d) Dispatching(5 marks)