Nadar Saraswathi College of Engineering and Technology,

Vadapudupatti, Theni - 625 531

(Approved by AICTE, New Delhi and Affiliated to Anna University, Chennai)

Format No. NAC/TLP-07a

Rev. No. 03

Date 29-11-2019

Total Page 15

Question Bank for the Units – I to V

SEM- 6th

Semester – B.E. / B.Tech.

BR- DEPARTMENT OF MECHANICAL ENGINEERING

SUB COMPUTER AIDED DESIGN AND MANUFACTURING

Part-A (10 x 2 = 20 Marks)

UNIT – I (INTRODUCTION)

NO QUESTIONS LEVEL COMPETENCE MARK

1.1 Define Product cycle. L1 Knowledge 2

1.2 What is conceptualization in design process? L5 Elevation 2

1.3 Differentiate preliminary design and detailed design. L2 Comprehension 2

1.4 Define concurrent engineering. L1 Knowledge 2

1.5 Describe Computer Aided Design. L5 Evaluation 2

1.6 State the importance of Computer Architecture in CAD. L5 Evaluation 2

1.7 Define CAD. L1 Knowledge

2

1.8 Describe CAM L1 Knowledge

2

1.9 Examine Manufacturing Planning L1 Knowledge

2

1.10 Where is Manufacturing Control applied? L1 Knowledge 2

1.11 Demonstrate the manufacturing models. L3 Application

2

1.12 Show the manufacturing metrics. L3 Application

2

1.13 Examine the mathematical Models. L3 Application

2

1.14 Analyze the production Performance. L4 Analysis

2

2.1 List the advantages of computer aided design L4

Analysis 2

2.2 Define shading in graphics. L5 Evaluation 2

2.3 Difference between sequential and concurrent

engineering? L2 comprehension 2

2.4 Differentiate clockwise and counter clockwise rotation

matrix. L2 Comprehension 2

2.5 What are the advantages of concurrent engineering? L5 Evaluation 2

2.6 What is meant by concatenation transformation ? L5 Evaluation 2

UNIT – II (GEOMETRIC MODELING)

3.1 Define Conic section. L1 Knowledge 2

3.2 Explain the engineering application of cubic splines. L4 Analysis 2

3.3 Write a short note „Hermite curve‟. L6 Synthesis 2

3.4 What is meant by coon surface? L5 Evaluation 2

3.5

Distinguish between interpolation and approximation

approaches used in design of curves

L2

Comprehension

2

3.6 Define NURBS L1 Knowledge 2

4.1 Write down „Bernstein‟ polynomial L4 Analysis 2

4.2 List out properties of B-Spline L3 Application 2

4.3 What is CGS? L5 Evaluation 2

4.4 Differentiate between analytical curves, interpolated cures L2 Comprehension 2

and approximated cures.

4.5 List out the various Bezier curves based on control points? L4 Analysis 2

4.6 What is the use of surface path ? L5 Evaluation 2

UNIT – III ( CAD STANDARDS )

5.1

What is meant by CAD Data exchange? Mention its

Importance L5 Evaluation 2

5.2 Define Database L1 Knowledge 2

5.3 Mention the need for graphic standards L4 Analysis 2

5.4 Classify the CAD standards L3 Application 2

5.5 What are the features GKS L5 Evaluation 2

5.6 Define workstation transformation L1 Knowledge 2

6.1 What are the reasons of exchanging data? L5 Evaluation 2

6.2 What are the limitations IGES and DXF? L5 Evaluation 2

6.3

Draw the flow diagram to communicate between two

CAD systems using IGES L6 Synthesis 2

6.4 Draw a neat sketch of STEP L6 Synthesis 2

6.5

List out the international organization involved to develop

the graphics standards? L1 Knowledge 2

6.6 What is the objective of GKS-3D standard? L5 Evaluation 2

UNIT-IV ( FUNDAMENTAL OF CNC AND PART PROGRAMING )

7.1 What is meant by numerical control? State their

advantages. L1 Remember 2

7.2 What is meant by tool magazine in a CNC machine? L1 Remember 2

7.3 What are the classification of NC machines? L1 Remember 2

7.4 List the differences between NC and CNC. L4 Analysis 2

7.5 Classify CNC machines. L1 Remember 2

7.6 What are the data essentially needed to prepare a part

program? L2 Understand 2

8.1 Define CNC and DNC. L1 Remember 2

8.2 What are the types of micromachining? L1 Remember 2

8.3 What are G – codes and M - codes? Give examples. L2 Understand 2

8.4 What is adaptive control? L1 Remember 2

8.5 Define micromachining. L1 Remember 2

8.6 State the functions of the following G codes and M codes.

G00, G03, M06, M03 L1 Remember 2

UNIT- V ( CELLULAR MANUFACTURING AND FLEXIBLEMANUFACTURING SYSTEM

(FMS) )

9.1 Describe group technology? L1 Knowledge

2

9.2

List the roles of group technology in CAD/CAM

integration? L1 Knowledge

2

9.3

Identify GT an important element of CAD/CAM

integration? L1 Knowledge

2

9.4

Define what do you understand concept of part

family? L1 Knowledge

2

9.5 List components of GT. L1 Knowledge

2

9.6

Examine the general methods used for grouping parts

into part families. L1 Knowledge

2

10.1 Summarize PFA. L2 Comprehension

2

10.2

Distinguish the steps involved in production flow

analysis. L2 Comprehension

2

10.3 Discuss the three basic code structure used in GT L2 Comprehension 2

application.

10.4

Express the factors to be considered in selection of

coding systems. L2 Comprehension

2

10.5 Point out what is meant by cellular manufacturing? L4 Analysis

2

10.6

Assess any four benefits implementation of cellular

manufacturing. L5 Evaluation

2

10.7

Summarize any four design considerations guiding the

cell formation. L5 Evaluation

2

10.8

Generalize what are the limitations for

implementation cellular manufacturing? L6 Synthesis

2

10.9 Describe flexible manufacturing system. L1 Knowledge

2

10.10 List the components of FMS. L1 Knowledge

2

10.11

Identify any four functions of the material handling

systems in a FMS L1 Knowledge

2

10.12

Name the different types of layout configuration

prevalent in FMSs L1 Knowledge

2

10.13

Differentiate between primary and secondary material

handling systems. L1 Knowledge

2

10.14

Examine types of material handling equipment that is

commonly employed in FMS. L1 Knowledge

2

10.15

Summarize some of the functions of a FMS computer

system. L2 Comprehension

2

10.16

Describe How FMS classified does based on number

of machines? L2 Comprehension

2

10.17 Distinguish the FMS layout configurations. L2 Comprehension

2

10.18

Discuss different types of data files required for a

FMS. L2 Comprehension

2

10.19 Demonstrate between FMS and FMC. L3 Application

2

10.20 Illustrate the application of FMS. L3 Application

2

10.21

Show How FMS classified does based on level of

flexibility? L3 Application

2

10.22

Differentiate between dedicated FMS and random-

order FMS. L4 Analysis

2

10.23

Analyze some important advantages of implementing

FMS. L4 Analysis

2

Part – B ( 5 x 13 = 65 Marks)

UNIT- I (INTRODUCTION)

11.a-1

1. (i)What is meant by concurrent engineering? Describe the

various schemes for concurrent engineering.

2. (ii)What is meant by Sequential engineering? Describe the

various schemes for Sequent engineering.

L5

L5

Evaluation

Evaluation

(6)

(7)

11.a-2 3. Write short notes on : (i) Design Process (ii) CAD system

architecture

L4

Analysis

(6)

(7)

11.a-3 4. With neat sketches briefly explain the Cohen – Sutherland

Line Clipping Algorithem.

L1

Knowledge

(13)

11.a-4

5. a) Rotate the rectangle (0, 0), (2, 0), (2, 2), (0, 2) shown in

Fig. 1, 30o counter clockwise about its centroid and find the

new coordinates of the rectangle.

(0, 2) (2, 2)

(0, 0) (2, 0)

Fig. 1

L5

Evaluation

(4)

b) Given the triangle, described by the homogeneous points

matrix below, scale it by a factor ¾, keeping the centroid in

the same location. Use (1) separate matrix operation and

(2) condensed matrix for transformation.

[P]= 2 2 0 12 5 0 15 5 0 1

L5

Evaluation

(9)

11.a-5 6. Explain the various graphic transformation required for

manipulating the geometric information? L1 Knowledge (13)

11.a-6

Describe the basic activities that must be carried out in

a factory to convert raw material into finished product L1 Knowledge (13)

11.a-7

(a) Examine what is meant by product data

management? Explain why it is important in

CAD/CAM integration.

(b) Identify the main element of automated system.

L1 Knowledge

(7)

(6)

11.a-8

(a) Distinguish the different types of manufacturing.

(b) Discuss an assessment of extent of computer

control in specific cases of each types of

manufacturing

L2

Comprehension

(7)

(6)

11.b-1

7. Rotate the rectangle shown in Fig. 2, 30o counter clockwise

about the line EF and the new Coordinates of the rectangle.

a.

L5

Evaluation

(13)

11.b-2 What is the need of homogeneous co ordinates? give the

homogeneous coordinates for Translation, rotation, scaling

L5

Evaluation

(13)

11.b-3

Write down the 2D transformation matrix for the following

transformation process

Translation

Scaling

Rotation

L4 Analysis (13)

11.b-4

Briefly explain the Clipping and Line drawing with an

example

L1

Knowledge

(13)

11.b-5 Describe the demonstrate DDA line drawing algorithm? L6 Synthesis (13)

UNIT – II (GEOMETRIC MODELING)

12.a-1

Write a note on:

a. NURBS

b. B-splines.

L4

Analysis

(6)

(7)

12.a-2 What do you mean by blending function? Explain rep of a

surface

L5

Evaluation (13)

12.a-3 What are Bezier Curves? Discuss its important properties L5

Evaluation

(13)

12.a-4

What do you understand by boundary representation

(B-rep) technique of solid modeling? Explain briefly the

data structure of B-rep solid model.

L5

Evalutaion

(13)

12.a-5

Brief discuss about the Bezier surface and compositive

surface?

L4

Analysis (13)

12.b-1 Briefly explain the different schemes used to generate a

solid model. L4 Analysis

(13)

12.b-2

(i) Explain the construction of “Coons Patch”

(ii) Describe the “Bicubic Patches” with mathematical

function.

L5

Evaluation

(7)

(6)

12.b-3 Briefly explain CSG and B–Rep of solid modeling

techniques. L4 Analysis

(13)

12.b-4 Write short notes on solid modeling and its representation L5 Evaluation (13)

12.b-5

Discuss the most commonly used solid entities with help

of neat sketch? L1 Knowledge

(13)

UNIT – III (CAD STANDARDS)

13.a-1 Write short notes on database management.

L4

Analysis (13)

13.a-2 Describe briefly about need for CAD standards. L6

Synthesis (13)

13.a-3 Discuss GKS in CAD standards L3

comprehension

(13)

13.a-4

What are GKS primitives? and discuss its features in CAD

standardization. L5

Evaluation

(13)

13.a-5

List and discuss the major available modules in CAD

software packages L1 Knowledge (13)

13.b-1

Explain how data is exchanged between two CAD

systems. L5 Evaluation (13)

13.b-2 Discuss various methods of Data exchange.

L3 comprehension (13)

13.b-3 Elaborate the approaches in DXF. L5

Evaluation (13)

13.b-4

Explain based on logical concept how STEP differ and

function from IGES.

L5

Evaluation (13)

13.b-5

(i) Explain IGES file structure with examples

(ii) Explain the concept of product data exchange usint

STEP in detail.

L1

Knowledge

(6)

(7)

UNIT –IV ( FUNDAMENTAL OF CNC AND PART PROGRAMING )

14.a-1

1.Compare NC machines with CNC machines.

2. Explain with neat sketch the classification of Machining

centre

L5

L2

Evaluation

Understand

(6)

(7)

14.a-2 Discuss the constructional details & features of NC

machine tools and explain its functions. L2 Understand (13)

14.a-3

1.Discuss the programming of NC machines.

2.List and explain the advantages of CNC systems over

conventional NC systems.

L2 Understand (6)

(7)

14.a-4

1.Expalin the constructional features of CNC Machining

Centre.

2.Describe various types of CNC machine based on tool

motion.

L2 Understand (7)

(6)

14.a-5 Explain in detail the steps followed for developing CNC

part programming. L2 Understand (13)

14.b-1 Explain with neat sketch the various steps involved in

wafer machining process. L2 Understand (13)

14.b-2 Explain with neat sketch the various steps involved in

micromachining process. L2 Understand (13)

UNIT V ( CELLULAR MANUFACTURING AND FLEXIBLE MANUFACTURING SYSTEM (FMS))

15.a-1

(a) List the various benefits of implementing a GT in

a firm. Also bring out the advantages and limitation

of using GT.

(b) Define the Production Flow Analysis in detail.

L1 Knowledge

(7)

(6)

15.a-2

Describe what is Group Technology? Also explain

why GT is important in achieving CAD and CAM

integration.

L1

Knowledge

(13)

15.a-3

Illustrate the form code (first five digits) in the Opitz

system for a given part.

L3

Application

(13)

15.a-4

Two components are shown in Fig. do they belong to

the same part family? Compare.

L4

Analysis

(13)

15.a-5

(a) List what are the major components of an FMS?

Explain them in brief.

(b) Describe the various workstations of FMS.

L1 Knowledge (7)

(6)

15.b-1

(a) Define the various aspects of FMS layout

configurations )

(b) Identify the various functions that are performed

by the FMS computer control system.

L1

Knowledge

(7)

(6)

15.b-2

Examine what is flexible manufacturing system? In

what ways, FMS differs from other Manufacturing

systems.

L1 Knowledge (13)

15.b-3

(a) List and explain the functions of the material

handling system in a FMS

(b) Name the applications, advantages and

disadvantages of a FMS.

L1 Knowledge (7)

(6)

15.b-4

(a) Discuss the important of In-process monitoring of

workpiece quality in FMS.

(b) Express how is tool life monitored in FMS

L2

Comprehension

(7)

(6)

15.b-5

(a) Give principle of an automated storage and

retrieval system.

(b) Discuss how is an FMS optimized?

L2

Comprehension

(7)

(6)

15.b-6 (a) Show distinguishing facts between FMS and FM L3 Application (7)

(b) Distinguishing facts between Dedicated FMS and

Random-order FMS

(6)

15.b-7 (a) Explain various types of software in FMS

(b) Point out various systems issues in FMS

L4

Analysis

(7)

(6)

Part – C ( 1 x 15 = 15 Marks)

UNIT-1 (INTRODUCTION)

16 .a-1

Some design applications would be better with CAD than

others. Why? What Characteristics make an application a

good candidate for CAD? L3 Application (15)

16.a-2

Analyze a case study on manufacturing in

competitive environment L4 Analysis

(15)

(OR)

16.b-1 What are the different types of geometric relations? Why

would you use them in 3d geometric modeling? L1 Knowledge (15)

16.b-2

Assess the contemporary implementation automation

of manufacturing process, Numerical control &

adaptive control

L5 Evaluation (15)

UNIT-2 (GEOMETRIC MODELING)

16 .a-1

A cubic Bezier curve is to be divided by a designer into two

segments. Find the modified polygon points for each

segment L5 Evaluation (15)

16 .a-2

Sketch the CSG tree for each of the two solids shown

below.

The solid S2 is divided symmetrically and it consist of

four blocks (B1 to B4) and six cylinder (C1 to C6).

L5

Evaluation

(15)

The dashed line shown inside S2 in the figure (b) is

not part of S2. It is a hypothetical line that uses to

divide the top part of S2 into two blocks B1 and B2.

(OR)

16.b-2

A cubic Bezier curve is defined by co-ordinates

p0 = [2 2 0]T, P1 = [2 3 0]T, P2 = [3 3 0]T and

P3 = [3 2 0]T. Find the equation of the resulting Bezier

curve. Also find the points on the curve for

u=0,0.25,0.5,0.75 and 1

L5

Evaluation

(15)

UNIT-3 (CAD STANDARDS)

16 .a-1

Each frame in an animation sequence takes five minutes of

computer time to generate. Assuming 24 frames per second

of animation, how long does it take to produce one minute of

animation?

L1

Knowledge

(15)

(OR)

16.b-1 Describe the IGES Methodology

L1

Knowledge

(15)

UNIT-4 ( FUNDAMENTAL OF CNC AND PART PROGRAMING)

16 .a-1

Explain the main differences between the point to point

and continuous path type numerically controlled

machine tools.

L4

Analysis (15)

16.a-2 Explain with a neat sketch, create a miniaturized product

by doing machining.

L6

Synthesis (15)

(OR)

16.b-1 Discuss the requirements of Product data exchange between

dissimilar CAD/CAM systems

L2

Comprehension (15)

16.b-2 Explain in detail the preparatory functions relates for

manual part programming. L3 Application (15)

16.b-3 Sketch and write a CNC part program for any of the

component as you made. L3 Application

(15)

UNIT-5 ( CELLULAR MANUFACTURING AND FLEXIBLE MANUFACTURING SYSTEM

(FMS) )

16 .a-1

Analyze the rank order clustering technique to the part-

machine incidence matrix in the following table to

identify logical part families and machine groups. Parts

are identified by letters, and machines are identified

numerically.

L4

Analysis

(15)

16.a-2

Develop a case study of an industrial environment of

cellular manufacturing. L5 Evaluation

(15)

(OR)

16.b-1

Assess Four machines used to produce a family of parts

are to be arranged into a GT cell. The From-To data for

the parts processed by the machines are shown in the table

below. Determine the most logical sequence of machines

for this data using. Hollier methods (b) construct the flow

diagram for the data, showing where and how many parts

enter and exit the system.

L5 Evaluation (15)

16.b-2

Summarize with suitable sketches, explain the various

FMS layout configurations prevalent today. L2 Comprehension (15)

16.b-3

Contras extrinsic and intrinsic functions. What are factor

should be consider implement in FMS? L4

Analysis (15)

16.b-4

Illustrate short notes various material handling equipment

that are commonly found in a FMS. L3

Application

(15)

QUESTION BANK SUMMARY

S.NO UNIT DETAILS L1 L2 L3 L4 L5 L6 TOTAL

1 Unit-1

PART-A 6 3 3 2 6 20

PART-B 5 1 2 6 1 15

PART-C 1 1 1 1 03

2 Unit-2

PART-A 2 2 1 3 3 1 12

PART-B 1 4 5 10

PART-C 3 03

3 Unit-3

PART-A 3 1 1 5 2 12

PART-B 2 2 1 4 1 10

PART-C 2 02

4 Unit-4

PART-A 9 2 1 12

PART-B 7 1 08

PART-C 1 1 1 1 04

5 Unit-5

PART-A 12 8 3 3 2 1 29

PART-B 6 2 2 2 12

PART-C 1 1 2 2 06

Total No of Questions

PART-A PART-B PART-C TOTAL

85 55 18 158

Prepared By:

Staff Name: Mr. S.HARIKISHORE

Staff Name: Mr. G. ARUN KUMAR

Nadar Saraswathi College of Engineering and Technology,

Vadapudupatti, Theni - 625 531

(Approved by AICTE, New Delhi and Affiliated to Anna University, Chennai)

Format No. NAC/TLP-07a

Rev. No. 03

Date 29-11-2019

Total Page 01

Question Bank for the Units – I to V