CWA ICWA Question Papers Inter Group II Operations Management and Information System June 2011

CWA ICWA Question Papers Inter Group II

Operations Management and Information System  June 2011

This Paper has 54 answerable questions with 1 answered.

I—P9(OMS)
Syllabus 2008
Time Allowed : 3 Hours Full Marks : 100
The figures in the margin on the right side indicate full marks.
Section I : Operation Management
Answer Question No. 1 which is compulsory and any two from the rest, under Section I.
Marks
1. (a) Examine each statement and indicate whether it is ‘ True ’ or ‘ False ’: 1×5
(i) MRP is a marketing technique. (0)
(ii) FMS stands for ‘ Flexible Machine System ’. (0)
(iii) Method Study should precede Work Measurement. (0)
(iv) ‘ Z ’ chart is a chart used in Programme Control. (0)
(v) EOQ formula does not consider storage cost. (0)
(b) Match the terms in Column I with the relevant terms in Column II:
I II
(A) Feeding coal continuosuly into the
furnace in an Electric Power Station (i) Electromagnet
(B) Handling crates on Pallets within a factory (ii) Electric Arc Furnace
(C) Moving a heavy load above the Machine
on the shop floor in a workshop (iii) Gravity Chute
(D) Transporting fertilizer packed in bags to a
railway wagon/truck on the ground below (iv) Drilling Machine
(E) Making a small deep hole in block of metal (v) Plaining Machine
(F) Machining a large flat surface on metal (vi) E.O.T.Crane
(G) Melting steel for making castings (vii) Fork – lift Truck
(H) picking up bits of iron and steel in a
scrap yard (viii) Belt Conveyor
0.5×8 (0)
(c) For each part below, choose the most appropriate answer out of the four options given against each part: 1×5
(i) Ergonomics is another name of
(a)
(b) Chemical Engineering
Human Engineering (c)
(d) Mechanical Engineering
Electrical Engineering
(0)
(ii) ALDEP is a technique used in
(a)
(b) Production Planning
Resource Management (c)
(d) Plant Layout
Maintenance Management
(0)
(iii) The study of relationship between the load on hand and the capacity of the work centeres is known as
(a)
(b) Scheduling
Loading (c)
(d) Routing
Controlling
(0)
(iv) Buffer Stock is built to cater to
(a)
(b) Machine Breakdown
Import Substitution (c)
(d) Fluctuating Load
Diversification
(0)
(v) Independnt Float is
(a)
(b) Total Float — Head Slack
Earliest Start Time — Earliest Finish Time (c)
(d) Free Float — Total Float
None of these
(0)
2. (a) Manufacturing of a gunmetal bush requires operations on Lathe, Milling and Drilling machine tools. The operator efficiencies, standard times, and machine tool availabilities are as follows:
Type of Machine
Tool Operator Efficiency Standard man – hours/
bush Machine Tool
availability
Lathe
Milling
Drilling 75%
80%
80% 0.15
0.20
0.10 95%
75%
75%
If the factory operates one shift of 8 hours for 6 days in a week, how many Lathe, Milling and Drilling machines will be required to produce 2000 bushes/week? What will be the percentage of spare capacity available in each type of machine tool?

9 (0)
(b) Expand the following: 1×5
(i) ASRS (0)
(ii) VAM (0)
(iii) SPT (0)
(iv) AQL (0)
(v) MTBF (0)
(c) A workshop has 25 nos. of identical machines. The failure pattern of the machine is given below:
Elapsed time after
maintenance attention
(in month) Probability of failure
1
2
3
4
5
6 0.10
0.15
0.15
0.15
0.20
0.25
It costs Rs. 160 to attend a failed machine and rectify the same. Compute the yearly cost of servicing the broken down machines.

4 (0)
3. (a) Two alternative set–ups, A and B are available for the manufacture of a component on a particular machine, where the operating cost per hour is Rs. 25/–
Set – up A Set – up B
Components/Set – up
Set – up cost per year
Production rate/hour 20,000 pieces
Rs. 500
20 pieces 30,000 pieces
Rs. 600
40pieces
Find out the manufacturing cost/piece under each set–up. Which of these set–ups should be used for long range and economic production, assuming 3000 hours of working in a year? 3+5 (0)
(b) What are the four classes of Drilling machines? 4 (0)
(c) Mention the advantages of the following advancements in production technology:
(i) Robots
(ii) FMS
3+3 (0)
4. (a) An article is processed on three machines A,B and C as shown below:
Machine Machine operation time
(minutes) Preparation time
(min/day) Cleaning time
(min/day)
Time Processing Total
A
B
C 2
3
2 2.5
10
5 4.5
13
7 15
30
25 10
10
10
A study revealed that if the jigs for machines B and C were to be redesigned, loading and unloading times could be reduced to 2 minutes and 1 minute respectively:
(i) Find the number of pieces produced per day (single shift of 8 hrs.)
(ii) Costing has shown that unless production is increased by 20 per cent, the installation of new jigs would not be worthwhile. would you recommend redesign of jigs?
(iii) If the number to be produced is large, suggest changes in present arrangement and estimate new production rate.
3+3+3 (0)
(b) What is the utility of a Single Purpose Machine Tool? Describe a Single Purpose Machine Tool designed for cutting Gears. What are Spur and Helical Gear? 2+2+2 (0)
(c) A manufacturing company has a product line cosisting of five work stations in series. The individual work station capacities are given. The actual output of the line is 540 units per shift,
Work station No. 1 2 3 4 5
Capacity/shift 700 650 700 650 600
Calculate (i) System capacity (ii) Efficiency of the production line. 1+2 (0)
Section II : Information Systems
Answer Question No. 5, which is compulsory and any two questions from the rest, under Section II.
5. (a) Put an appropriate word in blank position: 1×4
(i) Intranet is an in–house version of _____________. (1)
(ii) Peoplesoft is an __________ package. (0)
(iii) Laser printer is a ____________ printer. (0)
(iv) Half–duplex is a mode of data___________. (0)
(b) Expand the following acronyms: 1×5
(i) B2C; (0)
(ii) EPROM; (0)
(iii) MODEM; (0)
(iv) RISC; (0)
(v) GUI (0)
(c) Each statement below is either ‘ True ’ or ‘ False ’. Indicate the same in your answers: 1×5
(i) Random files are stored on magnetic tapes. (0)
(ii) MICR is a device to read characters. (0)
(iii) Operating system is an application software. (0)
(iv) BPR is an exercise to follow ERP implementation. (0)
(v) Normalisation is a process of organizing data in a data base. (0)
6. (a) What are the types of File Organization with respect to the mode of access? Mention at least three advantages under each type of file organization. 2+6 (0)
(b) Narrate the concept and characteristics of a data base. 1+3 (0)
(c) (i) What are the different models of DBMS?. 2 (0)
(ii) What is the basic concept in the hierarchical Database? Mention main features ofhierarchical database structure. 1+3 (0)
7. (a) In a payroll system, the employee master file is being designed to have records of fixed length consisting of the following fields:
Field Name Maximum Field Size
Employee Number
Employee Name
Designation
Date of Birth
Date of Joining
Section Code
Qualification
Training Codes
Scale of Pay 6
35
10
6
6
3
20
10
10
The Employee Master has 2000 employee records presently. Once an employee leaves, his record is deleted.However, it is estimated that there may be fresh recruitment upto 15% of present strength in future. The file management software also requires an overhead of 20% for minimizing probabilities of collision and overflow conditions. Compute the total file space requirement after allowing for 10% contingency factor on total.

6 (0)
(b) What are the stages of the System Development Life Cycle? 4 (0)
(c) What are the points to be considered while designing a new source document? 4 (0)
(d) Match the items in Column I with those in Column II:
I II
(A) ALU (i) Knowledge base
(B) Parallel run (ii) Winchester
(C) Expert System (iii) Programming language
(D) PASCAL (iv) Change–over
(E) Fixed Disk (v) CPU
(F) VA (vi) Processed data
(G) Transaction log (vii) Cost Control
(H) Information (viii) Audit trail
0.5×8 (0)
8. Write shore notes on any six of the following: 3×6
(a) Reasons for Outsourcing Information System Function; (0)
(b) Steps involved in Data Warehousing; (0)
(c) HTTP and HTML; (0)
(d) Role of Security Administrator; (0)
(e) System adopted by SET; (0)
(f) OLAP; (0)
(g) AI; (0)
(h) Going Live. (0)

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