CWA ICWA Question Papers Inter Group II
Operations Management and Information System December 2011
This Paper has 63 answerable questions with 0 answered.
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.
1. (a) Put an appropriate word in blank position: 1×5
(i) ____________is the process of polishing a work, after grinding, by means of abrasive materials to give fine finish. (0)
(ii) _____________is a type of surface treatment by an electro–chemical process which gives a slight anticorrosion protection and improves the appearance of the product. (0)
(iii) In formulating the linear programming problem, the basic step is to set up some ______________ model. (0)
(iv) Under CPM, the project is analysed into different operations or activities and their relationships are determined and shown on the _______________ diagram. (0)
(v) Wear and ______________ are the two main causes for replacement of machinery. (0)
(b) Match the terms in Column I with the relevant terms in Column II:
Column I Column II
(A) Inventory Control (i) Turbo–Alternator
(B) Network Analysis (ii) Milling Machine
(C) Aviation Fuel (iii) Shaping Machine
(D) Hydro–electricity (iv) Crashing
(E) Helical groove on shaft (v) Value Analysis
(F) Improvement in productivity (vi) Stock Level
(G) ‘V’ groove in a Vee–block (vii) Honing
(H) Very fine finishing of the inside
diameter of a cylinder liner (viii) Refinery
(c) For each part below, choose the most appropriate answer out of the four options given against each part: 1×5
(i) Cutting tools are produced from:
(A) High Speed Steel, (B) Nickel, (C) Cobalt, (D) Silica.
(ii) The following establishes time sequence of operations:
(A) Routing, (B) Sequencing, (C) Scheduling, (D) Dispatching.
(iii) Arrangement of machines depending on sequence of operations happens in:
(A) Process Layout, (B) Product Layout, (C) Hybrid Layout, (D) Group Technology Layout.
(iv) Buffer stock is built to cater for:
(A) Fluctuating load, (B) Machine breakdown, (C) Import substitution, (D) Diversification.
(v) Linear Programming is a technique used for determining:
(A) Production Programme, (B) Plant Layout, (C) Product Mix, (D) Manufacturing sequence.
2. (a) A department of a company has to process a large number of components/month. The process equipment time required is 36 minutes/component, whereas the requirement of an imported process chemical is 1.2 litres/ component. The manual skilled manpower required is 12 minutes/component for polishing and cleaning. The following additional data are available:
Availability/month Efficiency of utilisation
Equipment–hours 500 85%
Imported Chemicals–Litres 1,000 95%
Skilled manpower–hours 250 65%
(1) What is the maximum possible production under the current conditions?
(2) If skilled manpower availability is increased by overtime by 20%, what will be the impact on production increase?
(b) “The term ‘Quality Control’ consists of two words ‘quality’ and ‘control’”.
(i) What are implied by the terms ‘quality’ and ‘control’?
(ii) From the discussions under (i), please arrive at a definition of ‘Quality Control’.
(iii) Mention six major objectives of ‘Quality Control’.
(c) Draw the schematic diagram from the following table showing tasks to be performed on an assembly line in the sequence and time specified:
Task Time (Seconds) Tasks that must precede
A 50 –
B 40 –
C 20 A
D 45 C
E 20 C
F 25 D
G 10 E
H 35 B,F,G
(d) Replace the ‘missing words’ with appropriate terms in the formula contained in the following paragraph:
“The analytical approach to evaluate the work done by preventive maintenance is
(i) (Inspections incomplete)/(‘missing words’) x 100 should be less than 10%.
(ii) (Hours worked for maintenance)/(‘missing words’)x 100 = Performance of the department.”
3. (a) A lathe machine is used for turning operation and it takes 40 minutes to process the component. Efficiency of the lathe is 90 per cent and scrap is 20 per cent. The desired output is 600 pieces per week. Consider 48 hours per week and 50 weeks in a year. Determine the number of lathes required. 6 (0)
(b) Expand the following: 1×5
(i) EMQ (0)
(ii) ABFS (0)
(iii) TCM (0)
(iv) MBO (0)
(v) SPM (0)
(c) Please describe the situation where ‘Assembly Line Balancing’ is required. What are the factors that cause problems in Line Balancing? Suggest the steps in solving the issue 2+2+3 (0)
4. (a) The probabilities of failure Pn of an equipment in the nth period after maintenance have been estimated as follows:
n 1 2 3 4
Pn 0.1 0.2 0.4 0.3
Cost of preventive maintenance: Rs.150;
Cost of breakdown maintenance: Rs. 1,000;
Determine the optimum frequency of preventive maintenance.
(b) (i) Explain what is a Slack Variable under Simplex Method of Linear Programming. 2 (0)
(ii) A small manufacturing firm produces two types of gadgets, A and B, which are first processed in the foundry, then sent to the machine for finishing. The number of man-hours of labour required in each shop for the production of each unit of A and B and the number of man-hours the firm has available per week are as follows:
Foundry Machine Shop
Product A: Man–hours/unit” 10 5
Product B: Man–hours/unit 6 4
Firm’s capacity per week (in hours 1,000 600
Construct the objective function and the corresponding equations for calculating how many units should be produced per week so that the profit is maximum. The profit on the sale of A is Rs. 30 per unit as compared to B’s Rs. 20 per unit.
(c) Examine each statement and indicate whether it is ‘True’ or ‘False’: 1×5
(i) Industrial Engineering is not a line function. (0)
(ii) Ranking is one of the Job Evaluation Techniques. (0)
(iii) Results available from work sampling study is 100% accurate. (0)
(iv) Standard time does not allow for relaxation of the operators. (0)
(v) Incentives are substitutes for lower wages. (0)
(d) A company which is planning to undertake the production of medical testing equipments has to decide on the location of the plant. Three locations are being considered, namely, A, B and C. The fixed costs of three locations are estimated to be Rs. 300 lakhs, Rs. 500 lakhs and Rs. 250 lakhs respectively. The variable costs are Rs. 3,000, Rs. 2,000 and Rs. 3,500 per unit respectively. The average sales price of the equipment is Rs. 7,000 per unit.
(i) The range of annual production/sales volume for which each location is most suitable.
(ii) Select the best location, if the sales volume is of 18,000 units.
Section II : Information Systems
Answer Question No. 5 which is compulsory and any two questions from the rest, under Section II.
5. (a) For each part below, choose the most appropriate answer out of the four options given against each part: 1×5
(i) Barcode is:
(A) Unit used in banking industry; (B) Universal product code;
(C) Spreadsheet package; (D) Scan graphs.
(ii) ‘Packet switching’ on the Internet refers to:
(A) Type of circuitry; (B) Switching components;
(C) Method of data movement; (D) Packet of hard copy of documents.
(iii) Which of the following is NOT an operating system?
(A) OS/2; (B) Win XP;
(C) Oracle; (D) UNIX.
(iv) A network topology where all computers are connected to a central hub is called:
(A) Ring; (B) Bus;
C) Star; (D) Token.
(v) Assembly language is:
(A) Machine dependent; (B) Machine independent;
(C) Partly dependent and partly independent; (D) Not a programming language.
(b) Put an appropriate word in blank position: 1×5
(i) _______________ indicates a sequence of instructions that repeat until a predetermined count or other test is satisfied. (0)
(ii) An _________________ is a boundary shared by human beings and computer.
(iii) ______________ means browsing for information over the Internet. (0)
(iv) In the Windows system, a Folder is a storage area for_____________. (0)
(v) Information of a permanent nature is stored in a _______________ file. (0)
(c) Each statement below is either True or False. Indicate the same in your answers: 1×4
(i) Memory is used to store data, programs and results. (0)
(ii) Only executable files can be infected by virus. (0)
(iii) On–line processing and real–time processing are same. (0)
(iv) Light pens and Joysticks are both pointing devices. (0)
6. (a) Briefly describe any five program design tools. 5 (0)
(b) A Company sells merchandise to wholesale and retail outlets. Wholesale customers receive a 2% discount on all orders. The company also encourages both wholesale as well as retail customers pay cash on delivery by offering a 2% discount for this method of payment. Another 2% discount is offered on orders of 500 or more units for all. Draw a decision table for the above conditions and actions. 8 (0)
(c) Expand the following acronyms: 1×5
(i) DSS; (0)
(ii) SRAM; (0)
(iii) HLL; (0)
(iv) SDLC; (0)
(v) DBMS. (0)
7. (a) What are generally the sub-systems in the Manufacturing Module of an ERP package? 4 (0)
(b) What is Integration Testing? What are the different strategies adopted for this? What are the types of testing approach? How does the auditor satisfy himself in this regard? 1+1+
(c) A consumer wants to purchase a ready–made item on–line by using his credit card. Narrate the steps to complete the transaction and get delivery of the item. 5 (0)
(d) Match the items in Column I with those in Column II
Column I Column II
(A) Inverted Tree (i) Web sites that allow users to communicate
with various other users on–line
(B) Trap door (ii) Measure of processing performance
(C) URL (iii) Hierarchical data structure
(D) MIPS (iv) Provides information about location of a document
(E) Chat Rooms format (v) File Attachment
(F) Firewall (vi) Access to system bypassing normal system control
(G) Top Management (vii) Strategic Planning
(H) E–mail (viii) Access Security with Checks in Computer System
8. Write short notes on any six of the following: 3×6
(a) Fourth Generation Language; (0)
(b) Client–Server Architecture; (0)
(c) Audit Trail; (0)
(d) Cost of ERP Implementation; (0)
(e) Salient features of LAN; (0)
(f) Data Mart; (0)
(g) Executive Information Systems; (0)
(h) Disaster Recovery. (0)