Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 7th Sem 2171501 Operations Planning And Control Previous Question Paper
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VII (NEW) EXAMINATION ? WINTER 2020
Subject Code:2171501 Date:19/01/2021
Subject Name:Operations Planning & Control
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Define Operations Planning & Control.
03
(b) Discuss the role of PPC executive in materials control function in Job order production
04
industry.
(c) Explain the role of OPC in improving overall manufacturing performance of the
07
organization.
Q.2 (a) What is dispatching?
03
(b) Explain in brief : Computer Integrated Manufacturing (CIM).
04
(c) Explain crucial functions of PPC and the concerned departments.
07
Q.3 (a) What is sales forecasting?
03
(b) Explain `Regression analysis' method of sales forecasting.
04
(c) The sales pattern of an automobile gear mfg. company is as follows :
07
Year
2012 2013 2014 2015 2016 2017 2018 2019
Sales
34.7 35.2
35.8 36.8 36.2 37.3 38.5 40.1
(Rs.Crores)
Compute the 3 yearly moving trend and find out the sales forecast for the year
2020.
Q.4 (a) What is process planning?
03
(b) Explain process planning procedure.
04
(c) An engineering company uses a special type of pin at an approximately constant
07
rate of 7000 units per year. The pins are manufactured at the company's own
plant. Each pin costs the company Rs. 90. The setup cost per production run is
Rs. 2500. The inventory carrying charges are estimated at 22% of the average
inventory investment.
What quantity of pins should be manufactured in each production run
for minimum cost? Also find out the frequency of production runs to be made.
Q.5 (a) What is scheduling?
03
(b) Differentiate between Gantt chart and Machine load chart.
04
(c) Explain scope of scheduling with example.
07
Q.6 (a) What is job sequencing?
03
(b) State assumptions underlying Johnson's algorithm for sequencing.
04
(c) Use Johnson's rule to find out the best sequence and find total idle time for following
07
data :
1
Job
1
2
3
4
5
6
Lathe
4
7
5
10
12
8
Shaping
5
8
4
9
7
6
Q.7 (a) What is assembly line balancing?
03
(b) Discuss capacity planning with an example.
04
(c) Following is the period demand forecast for a company :
07
Period
1
2
3
4
5
6
Demand 320
410
470
350
290
310
Consider following plans and choose between the two.
(i) Produce for average demand through out the periods, change the work force
level to meet the balance.
(ii) Produce 200 units every period and meet the balance by subcontracting.
Cost data as per : Hiring cost Rs. 100/person, Firing cost Rs. 75/person,
Subcontracting cost Rs. 75/unit
Q.8 (a) Discuss Aggregate planning.
03
(b) Discuss MPC system schema.
04
(c) Using Heuristic approach, solve the following problem for a cycle time 8 min.
07
and find :-
(i)
Mini. no. of work stations &
(ii)
Line efficiency
Operation
1 2 3
4 5 6 7 8 9 10 11
Immediate
- - 1,2 3 4 4 5 6 6 8,9 7,10
Predecessor
Time (Min.) 3 3 6
2 4 2 5 7 3 5
4
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2
This post was last modified on 04 March 2021